openstack/swift
Code Issues Proposed changes

Various doc formatting cleanups

Browse Source 
* Get rid of a bunch of accidental blockquote formatting
* Always declare a lexer to use for ``.. code::`` blocks

Change-Id: I8940e75b094843e542e815dde6b6be4740751813
This commit is contained in:
Tim Burke 2022-08-02 11:51:24 -07:00
parent 7e5c78423f
commit 52a4fe37aa
28 changed files with 784 additions and 757 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
doc/source/admin_guide.rst
View File

@ -324,14 +324,14 @@ In order to prevent rsync replication to specific drives, firstly
setup ``rsync_module`` per disk in your ``object-replicator``.
Set this in ``object-server.conf``:
.. code::
.. code:: cfg
[object-replicator]
rsync_module = {replication_ip}::object_{device}
Set the individual drives in ``rsync.conf``. For example:
.. code::
.. code:: cfg
[object_sda]
max connections = 4
@ -387,7 +387,7 @@ monitoring solution to achieve this. The following is an example script:
For the above script to work, ensure ``/etc/rsync.d/`` conf files are
included, by specifying ``&include`` in your ``rsync.conf`` file:
.. code::
.. code:: cfg
&include /etc/rsync.d
@ -395,7 +395,7 @@ Use this in conjunction with a cron job to periodically run the script, for exam
.. highlight:: none
.. code::
.. code:: cfg
# /etc/cron.d/devicecheck
* * * * * root /some/path/to/disable_rsync.py

4
doc/source/api/discoverability.rst
View File

@ -12,13 +12,13 @@ that does not support the ``/info`` request.
To use the ``/info`` request, send a **GET** request using the ``/info``
path to the Object Store endpoint as shown in this example:
.. code::
.. code:: console
# curl https://storage.clouddrive.com/info
This example shows a truncated response body:
.. code::
.. code:: console
{
"swift":{

16
doc/source/api/form_post_middleware.rst
View File

@ -29,9 +29,8 @@ The format of the form **POST** request is:
**Example 1.14. Form POST format**
.. code::
.. code:: xml
<![CDATA[
<form action="SWIFT_URL"
method="POST"
enctype="multipart/form-data">
@ -44,7 +43,6 @@ The format of the form **POST** request is:
<br/>
<input type="submit"/>
</form>
]]>
**action="SWIFT_URL"**
@ -53,14 +51,14 @@ Set to full URL where the objects are to be uploaded. The names of
uploaded files are appended to the specified *SWIFT_URL*. So, you
can upload directly to the root of a container with a URL like:
.. code::
.. code:: none
https://swift-cluster.example.com/v1/my_account/container/
Optionally, you can include an object prefix to separate uploads, such
as:
.. code::
.. code:: none
https://swift-cluster.example.com/v1/my_account/container/OBJECT_PREFIX
@ -123,7 +121,7 @@ follow the file attributes are ignored.
Optionally, if you want the uploaded files to be temporary you can set x-delete-at or x-delete-after attributes by adding one of these as a form input:
.. code::
.. code:: xml
<input type="hidden" name="x_delete_at" value="<unix-timestamp>" />
<input type="hidden" name="x_delete_after" value="<seconds>" />
@ -169,7 +167,7 @@ The following example code generates a signature for use with form
**Example 1.15. HMAC-SHA1 signature for form POST**
.. code::
.. code:: python
import hmac
from hashlib import sha1
@ -198,13 +196,13 @@ being uploaded is called ``flower.jpg``.
This example uses the **swift-form-signature** script to compute the
``expires`` and ``signature`` values.
.. code::
.. code:: console
$ bin/swift-form-signature /v1/my_account/container/photos/ https://example.com/done.html 5373952000 1 200 MYKEY
Expires: 1390825338
Signature: 35129416ebda2f1a21b3c2b8939850dfc63d8f43
.. code::
.. code:: console
$ curl -i https://swift-cluster.example.com/v1/my_account/container/photos/ -X POST \
-F max_file_size=5373952000 -F max_file_count=1 -F expires=1390825338 \

10
doc/source/api/large_objects.rst
View File

@ -82,7 +82,7 @@ This example shows three segment objects. You can use several containers
and the object names do not have to conform to a specific pattern, in
contrast to dynamic large objects.
.. code::
.. code:: json
[
{
@ -192,7 +192,7 @@ manifest is still available to download the first set of segments.
**Example Upload segment of large object request: HTTP**
.. code::
.. code:: none
PUT /{api_version}/{account}/{container}/{object} HTTP/1.1
Host: storage.clouddrive.com
@ -214,7 +214,7 @@ uploading the manifest.
**Example Upload next segment of large object request: HTTP**
.. code::
.. code:: none
PUT /{api_version}/{account}/{container}/{object} HTTP/1.1
Host: storage.clouddrive.com
@ -232,7 +232,7 @@ subsequent additional segments.
**Example Upload manifest request: HTTP**
.. code::
.. code:: none
PUT /{api_version}/{account}/{container}/{object} HTTP/1.1
Host: storage.clouddrive.com
@ -244,7 +244,7 @@ subsequent additional segments.
**Example Upload manifest response: HTTP**
.. code::
.. code:: none
[...]

8
doc/source/api/object_api_v1_overview.rst
View File

@ -97,14 +97,14 @@ interact with the Object Storage API.
Specifically, the resource path reflects this structure and has this
format:
.. code::
.. code:: none
/v1/{account}/{container}/{object}
For example, for the ``flowers/rose.jpg`` object in the ``images``
container in the ``12345678912345`` account, the resource path is:
.. code::
.. code:: none
/v1/12345678912345/images/flowers/rose.jpg
@ -133,7 +133,7 @@ parameter ``reverse``, noting that your marker and end_markers should be
switched when applied to a reverse listing. I.e, for a list of objects
``[a, b, c, d, e]`` the non-reversed could be:
.. code::
.. code:: none
/v1/{account}/{container}/?marker=a&end_marker=d
b
@ -141,7 +141,7 @@ switched when applied to a reverse listing. I.e, for a list of objects
However, when reversed marker and end_marker are applied to a reversed list:
.. code::
.. code:: none
/v1/{account}/{container}/?marker=d&end_marker=a&reverse=on
c

308
doc/source/api/object_versioning.rst
View File

@ -46,37 +46,37 @@ container, overwriting the current version.
Example Using ``X-Versions-Location``
-------------------------------------
#. Create the ``current`` container:
#. Create the ``current`` container:
.. code::
.. code:: console
# curl -i $publicURL/current -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token" -H "X-Versions-Location: archive"
# curl -i $publicURL/current -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token" -H "X-Versions-Location: archive"
.. code::
.. code:: console
HTTP/1.1 201 Created
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: txb91810fb717347d09eec8-0052e18997
X-Openstack-Request-Id: txb91810fb717347d09eec8-0052e18997
Date: Thu, 23 Jan 2014 21:28:55 GMT
HTTP/1.1 201 Created
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: txb91810fb717347d09eec8-0052e18997
X-Openstack-Request-Id: txb91810fb717347d09eec8-0052e18997
Date: Thu, 23 Jan 2014 21:28:55 GMT
#. Create the first version of an object in the ``current`` container:
.. code::
.. code:: console
# curl -i $publicURL/current/my_object --data-binary 1 -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token"
# curl -i $publicURL/current/my_object --data-binary 1 -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token"
.. code::
.. code:: console
HTTP/1.1 201 Created
Last-Modified: Thu, 23 Jan 2014 21:31:22 GMT
Content-Length: 0
Etag: d41d8cd98f00b204e9800998ecf8427e
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx5992d536a4bd4fec973aa-0052e18a2a
X-Openstack-Request-Id: tx5992d536a4bd4fec973aa-0052e18a2a
Date: Thu, 23 Jan 2014 21:31:22 GMT
HTTP/1.1 201 Created
Last-Modified: Thu, 23 Jan 2014 21:31:22 GMT
Content-Length: 0
Etag: d41d8cd98f00b204e9800998ecf8427e
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx5992d536a4bd4fec973aa-0052e18a2a
X-Openstack-Request-Id: tx5992d536a4bd4fec973aa-0052e18a2a
Date: Thu, 23 Jan 2014 21:31:22 GMT
Nothing is written to the non-current version container when you
initially **PUT** an object in the ``current`` container. However,
@ -85,9 +85,9 @@ Example Using ``X-Versions-Location``
These non-current versions are named as follows:
.. code::
.. code:: none
<length><object_name>/<timestamp>
<length><object_name>/<timestamp>
Where ``length`` is the 3-character, zero-padded hexadecimal
character length of the object, ``<object_name>`` is the object name,
@ -96,20 +96,20 @@ Example Using ``X-Versions-Location``
#. Create a second version of the object in the ``current`` container:
.. code::
.. code:: console
# curl -i $publicURL/current/my_object --data-binary 2 -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token"
# curl -i $publicURL/current/my_object --data-binary 2 -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token"
.. code::
.. code:: console
HTTP/1.1 201 Created
Last-Modified: Thu, 23 Jan 2014 21:41:32 GMT
Content-Length: 0
Etag: d41d8cd98f00b204e9800998ecf8427e
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx468287ce4fc94eada96ec-0052e18c8c
X-Openstack-Request-Id: tx468287ce4fc94eada96ec-0052e18c8c
Date: Thu, 23 Jan 2014 21:41:32 GMT
HTTP/1.1 201 Created
Last-Modified: Thu, 23 Jan 2014 21:41:32 GMT
Content-Length: 0
Etag: d41d8cd98f00b204e9800998ecf8427e
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx468287ce4fc94eada96ec-0052e18c8c
X-Openstack-Request-Id: tx468287ce4fc94eada96ec-0052e18c8c
Date: Thu, 23 Jan 2014 21:41:32 GMT
#. Issue a **GET** request to a versioned object to get the current
version of the object. You do not have to do any request redirects or
@ -117,24 +117,24 @@ Example Using ``X-Versions-Location``
List older versions of the object in the ``archive`` container:
.. code::
.. code:: console
# curl -i $publicURL/archive?prefix=009my_object -X GET -H "X-Auth-Token: $token"
# curl -i $publicURL/archive?prefix=009my_object -X GET -H "X-Auth-Token: $token"
.. code::
.. code:: console
HTTP/1.1 200 OK
Content-Length: 30
X-Container-Object-Count: 1
Accept-Ranges: bytes
X-Timestamp: 1390513280.79684
X-Container-Bytes-Used: 0
Content-Type: text/plain; charset=utf-8
X-Trans-Id: tx9a441884997542d3a5868-0052e18d8e
X-Openstack-Request-Id: tx9a441884997542d3a5868-0052e18d8e
Date: Thu, 23 Jan 2014 21:45:50 GMT
HTTP/1.1 200 OK
Content-Length: 30
X-Container-Object-Count: 1
Accept-Ranges: bytes
X-Timestamp: 1390513280.79684
X-Container-Bytes-Used: 0
Content-Type: text/plain; charset=utf-8
X-Trans-Id: tx9a441884997542d3a5868-0052e18d8e
X-Openstack-Request-Id: tx9a441884997542d3a5868-0052e18d8e
Date: Thu, 23 Jan 2014 21:45:50 GMT
009my_object/1390512682.92052
009my_object/1390512682.92052
.. note::
A **POST** request to a versioned object updates only the metadata
@ -145,38 +145,38 @@ Example Using ``X-Versions-Location``
current version of the object and replace it with the next-most
current version in the non-current container.
.. code::
.. code:: console
# curl -i $publicURL/current/my_object -X DELETE -H "X-Auth-Token: $token"
# curl -i $publicURL/current/my_object -X DELETE -H "X-Auth-Token: $token"
.. code::
.. code:: console
HTTP/1.1 204 No Content
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx006d944e02494e229b8ee-0052e18edd
X-Openstack-Request-Id: tx006d944e02494e229b8ee-0052e18edd
Date: Thu, 23 Jan 2014 21:51:25 GMT
HTTP/1.1 204 No Content
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx006d944e02494e229b8ee-0052e18edd
X-Openstack-Request-Id: tx006d944e02494e229b8ee-0052e18edd
Date: Thu, 23 Jan 2014 21:51:25 GMT
List objects in the ``archive`` container to show that the archived
object was moved back to the ``current`` container:
.. code::
.. code:: console
# curl -i $publicURL/archive?prefix=009my_object -X GET -H "X-Auth-Token: $token"
# curl -i $publicURL/archive?prefix=009my_object -X GET -H "X-Auth-Token: $token"
.. code::
.. code:: console
HTTP/1.1 204 No Content
Content-Length: 0
X-Container-Object-Count: 0
Accept-Ranges: bytes
X-Timestamp: 1390513280.79684
X-Container-Bytes-Used: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx044f2a05f56f4997af737-0052e18eed
X-Openstack-Request-Id: tx044f2a05f56f4997af737-0052e18eed
Date: Thu, 23 Jan 2014 21:51:41 GMT
HTTP/1.1 204 No Content
Content-Length: 0
X-Container-Object-Count: 0
Accept-Ranges: bytes
X-Timestamp: 1390513280.79684
X-Container-Bytes-Used: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx044f2a05f56f4997af737-0052e18eed
X-Openstack-Request-Id: tx044f2a05f56f4997af737-0052e18eed
Date: Thu, 23 Jan 2014 21:51:41 GMT
This next-most current version carries with it any metadata last set
on it. If want to completely remove an object and you have five
@ -185,37 +185,37 @@ Example Using ``X-Versions-Location``
Example Using ``X-History-Location``
------------------------------------
#. Create the ``current`` container:
#. Create the ``current`` container:
.. code::
.. code:: console
# curl -i $publicURL/current -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token" -H "X-History-Location: archive"
# curl -i $publicURL/current -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token" -H "X-History-Location: archive"
.. code::
.. code:: console
HTTP/1.1 201 Created
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: txb91810fb717347d09eec8-0052e18997
X-Openstack-Request-Id: txb91810fb717347d09eec8-0052e18997
Date: Thu, 23 Jan 2014 21:28:55 GMT
HTTP/1.1 201 Created
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: txb91810fb717347d09eec8-0052e18997
X-Openstack-Request-Id: txb91810fb717347d09eec8-0052e18997
Date: Thu, 23 Jan 2014 21:28:55 GMT
#. Create the first version of an object in the ``current`` container:
.. code::
.. code:: console
# curl -i $publicURL/current/my_object --data-binary 1 -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token"
# curl -i $publicURL/current/my_object --data-binary 1 -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token"
.. code::
.. code:: console
HTTP/1.1 201 Created
Last-Modified: Thu, 23 Jan 2014 21:31:22 GMT
Content-Length: 0
Etag: d41d8cd98f00b204e9800998ecf8427e
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx5992d536a4bd4fec973aa-0052e18a2a
X-Openstack-Request-Id: tx5992d536a4bd4fec973aa-0052e18a2a
Date: Thu, 23 Jan 2014 21:31:22 GMT
HTTP/1.1 201 Created
Last-Modified: Thu, 23 Jan 2014 21:31:22 GMT
Content-Length: 0
Etag: d41d8cd98f00b204e9800998ecf8427e
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx5992d536a4bd4fec973aa-0052e18a2a
X-Openstack-Request-Id: tx5992d536a4bd4fec973aa-0052e18a2a
Date: Thu, 23 Jan 2014 21:31:22 GMT
Nothing is written to the non-current version container when you
initially **PUT** an object in the ``current`` container. However,
@ -224,9 +224,9 @@ Example Using ``X-History-Location``
These non-current versions are named as follows:
.. code::
.. code:: none
<length><object_name>/<timestamp>
<length><object_name>/<timestamp>
Where ``length`` is the 3-character, zero-padded hexadecimal
character length of the object, ``<object_name>`` is the object name,
@ -235,20 +235,20 @@ Example Using ``X-History-Location``
#. Create a second version of the object in the ``current`` container:
.. code::
.. code:: console
# curl -i $publicURL/current/my_object --data-binary 2 -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token"
# curl -i $publicURL/current/my_object --data-binary 2 -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token"
.. code::
.. code:: console
HTTP/1.1 201 Created
Last-Modified: Thu, 23 Jan 2014 21:41:32 GMT
Content-Length: 0
Etag: d41d8cd98f00b204e9800998ecf8427e
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx468287ce4fc94eada96ec-0052e18c8c
X-Openstack-Request-Id: tx468287ce4fc94eada96ec-0052e18c8c
Date: Thu, 23 Jan 2014 21:41:32 GMT
HTTP/1.1 201 Created
Last-Modified: Thu, 23 Jan 2014 21:41:32 GMT
Content-Length: 0
Etag: d41d8cd98f00b204e9800998ecf8427e
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx468287ce4fc94eada96ec-0052e18c8c
X-Openstack-Request-Id: tx468287ce4fc94eada96ec-0052e18c8c
Date: Thu, 23 Jan 2014 21:41:32 GMT
#. Issue a **GET** request to a versioned object to get the current
version of the object. You do not have to do any request redirects or
@ -256,24 +256,24 @@ Example Using ``X-History-Location``
List older versions of the object in the ``archive`` container:
.. code::
.. code:: console
# curl -i $publicURL/archive?prefix=009my_object -X GET -H "X-Auth-Token: $token"
# curl -i $publicURL/archive?prefix=009my_object -X GET -H "X-Auth-Token: $token"
.. code::
.. code:: console
HTTP/1.1 200 OK
Content-Length: 30
X-Container-Object-Count: 1
Accept-Ranges: bytes
X-Timestamp: 1390513280.79684
X-Container-Bytes-Used: 0
Content-Type: text/plain; charset=utf-8
X-Trans-Id: tx9a441884997542d3a5868-0052e18d8e
X-Openstack-Request-Id: tx9a441884997542d3a5868-0052e18d8e
Date: Thu, 23 Jan 2014 21:45:50 GMT
HTTP/1.1 200 OK
Content-Length: 30
X-Container-Object-Count: 1
Accept-Ranges: bytes
X-Timestamp: 1390513280.79684
X-Container-Bytes-Used: 0
Content-Type: text/plain; charset=utf-8
X-Trans-Id: tx9a441884997542d3a5868-0052e18d8e
X-Openstack-Request-Id: tx9a441884997542d3a5868-0052e18d8e
Date: Thu, 23 Jan 2014 21:45:50 GMT
009my_object/1390512682.92052
009my_object/1390512682.92052
.. note::
A **POST** request to a versioned object updates only the metadata
@ -285,41 +285,41 @@ Example Using ``X-History-Location``
the current container. Subsequent **GET** requests to the object in the
current container will return ``404 Not Found``.
.. code::
.. code:: console
# curl -i $publicURL/current/my_object -X DELETE -H "X-Auth-Token: $token"
# curl -i $publicURL/current/my_object -X DELETE -H "X-Auth-Token: $token"
.. code::
.. code:: console
HTTP/1.1 204 No Content
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx006d944e02494e229b8ee-0052e18edd
X-Openstack-Request-Id: tx006d944e02494e229b8ee-0052e18edd
Date: Thu, 23 Jan 2014 21:51:25 GMT
HTTP/1.1 204 No Content
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx006d944e02494e229b8ee-0052e18edd
X-Openstack-Request-Id: tx006d944e02494e229b8ee-0052e18edd
Date: Thu, 23 Jan 2014 21:51:25 GMT
List older versions of the object in the ``archive`` container::
List older versions of the object in the ``archive`` container:
.. code::
.. code:: console
# curl -i $publicURL/archive?prefix=009my_object -X GET -H "X-Auth-Token: $token"
# curl -i $publicURL/archive?prefix=009my_object -X GET -H "X-Auth-Token: $token"
.. code::
.. code:: console
HTTP/1.1 200 OK
Content-Length: 90
X-Container-Object-Count: 3
Accept-Ranges: bytes
X-Timestamp: 1390513280.79684
X-Container-Bytes-Used: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx044f2a05f56f4997af737-0052e18eed
X-Openstack-Request-Id: tx044f2a05f56f4997af737-0052e18eed
Date: Thu, 23 Jan 2014 21:51:41 GMT
HTTP/1.1 200 OK
Content-Length: 90
X-Container-Object-Count: 3
Accept-Ranges: bytes
X-Timestamp: 1390513280.79684
X-Container-Bytes-Used: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx044f2a05f56f4997af737-0052e18eed
X-Openstack-Request-Id: tx044f2a05f56f4997af737-0052e18eed
Date: Thu, 23 Jan 2014 21:51:41 GMT
009my_object/1390512682.92052
009my_object/1390512692.23062
009my_object/1390513885.67732
009my_object/1390512682.92052
009my_object/1390512692.23062
009my_object/1390513885.67732
In addition to the two previous versions of the object, the archive
container has a "delete marker" to record when the object was deleted.
@ -334,18 +334,18 @@ To disable object versioning for the ``current`` container, remove
its ``X-Versions-Location`` metadata header by sending an empty key
value.
.. code::
.. code:: console
# curl -i $publicURL/current -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token" -H "X-Versions-Location: "
# curl -i $publicURL/current -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token" -H "X-Versions-Location: "
.. code::
.. code:: console
HTTP/1.1 202 Accepted
Content-Length: 76
Content-Type: text/html; charset=UTF-8
X-Trans-Id: txe2476de217134549996d0-0052e19038
X-Openstack-Request-Id: txe2476de217134549996d0-0052e19038
Date: Thu, 23 Jan 2014 21:57:12 GMT
HTTP/1.1 202 Accepted
Content-Length: 76
Content-Type: text/html; charset=UTF-8
X-Trans-Id: txe2476de217134549996d0-0052e19038
X-Openstack-Request-Id: txe2476de217134549996d0-0052e19038
Date: Thu, 23 Jan 2014 21:57:12 GMT
<html><h1>Accepted</h1><p>The request is accepted for processing.</p></html>
<html><h1>Accepted</h1><p>The request is accepted for processing.</p></html>

112
doc/source/api/pseudo-hierarchical-folders-directories.rst
View File

@ -34,14 +34,14 @@ the requested list of the objects.
.. code-block:: console
photos/animals/cats/persian.jpg
photos/animals/cats/siamese.jpg
photos/animals/dogs/corgi.jpg
photos/animals/dogs/poodle.jpg
photos/animals/dogs/terrier.jpg
photos/me.jpg
photos/plants/fern.jpg
photos/plants/rose.jpg
photos/animals/cats/persian.jpg
photos/animals/cats/siamese.jpg
photos/animals/dogs/corgi.jpg
photos/animals/dogs/poodle.jpg
photos/animals/dogs/terrier.jpg
photos/me.jpg
photos/plants/fern.jpg
photos/plants/rose.jpg
Use the delimiter parameter to limit the displayed results. To use
``delimiter`` with pseudo-directories, you must use the parameter slash
@ -63,20 +63,20 @@ For example:
.. code-block:: JSON
[
{
"subdir": "photos/"
}
]
[
{
"subdir": "photos/"
}
]
.. code-block:: XML
<?xml version="1.0" encoding="UTF-8"?>
<container name="backups">
<subdir name="photos/">
<name>photos/</name>
</subdir>
</container>
<?xml version="1.0" encoding="UTF-8"?>
<container name="backups">
<subdir name="photos/">
<name>photos/</name>
</subdir>
</container>
Use the ``prefix`` and ``delimiter`` parameters to view the objects
inside a pseudo-directory, including further nested pseudo-directories.
@ -92,46 +92,46 @@ pseudo-directory.
.. code-block:: console
photos/animals/
photos/me.jpg
photos/plants/
photos/animals/
photos/me.jpg
photos/plants/
.. code-block:: JSON
[
{
"subdir": "photos/animals/"
},
{
"hash": "b249a153f8f38b51e92916bbc6ea57ad",
"last_modified": "2015-12-03T17:31:28.187370",
"bytes": 2906,
"name": "photos/me.jpg",
"content_type": "image/jpeg"
},
{
"subdir": "photos/plants/"
}
]
[
{
"subdir": "photos/animals/"
},
{
"hash": "b249a153f8f38b51e92916bbc6ea57ad",
"last_modified": "2015-12-03T17:31:28.187370",
"bytes": 2906,
"name": "photos/me.jpg",
"content_type": "image/jpeg"
},
{
"subdir": "photos/plants/"
}
]
.. code-block:: XML
<?xml version="1.0" encoding="UTF-8"?>
<container name="backups">
<subdir name="photos/animals/">
<name>photos/animals/</name>
</subdir>
<object>
<name>photos/me.jpg</name>
<hash>b249a153f8f38b51e92916bbc6ea57ad</hash>
<bytes>2906</bytes>
<content_type>image/jpeg</content_type>
<last_modified>2015-12-03T17:31:28.187370</last_modified>
</object>
<subdir name="photos/plants/">
<name>photos/plants/</name>
</subdir>
</container>
<?xml version="1.0" encoding="UTF-8"?>
<container name="backups">
<subdir name="photos/animals/">
<name>photos/animals/</name>
</subdir>
<object>
<name>photos/me.jpg</name>
<hash>b249a153f8f38b51e92916bbc6ea57ad</hash>
<bytes>2906</bytes>
<content_type>image/jpeg</content_type>
<last_modified>2015-12-03T17:31:28.187370</last_modified>
</object>
<subdir name="photos/plants/">
<name>photos/plants/</name>
</subdir>
</container>
You can create an unlimited number of nested pseudo-directories. To
navigate through them, use a longer ``prefix`` parameter coupled with
@ -150,6 +150,6 @@ the objects and pseudo-directories within the nested pseudo-directory.
.. code-block:: console
photos/animals/dogs/corgi.jpg
photos/animals/dogs/poodle.jpg
photos/animals/dogs/terrier.jpg
photos/animals/dogs/corgi.jpg
photos/animals/dogs/poodle.jpg
photos/animals/dogs/terrier.jpg

50
doc/source/api/serialized-response-formats.rst
View File

@ -56,18 +56,18 @@ format:
.. code-block:: json
[
{
"count":0,
"bytes":0,
"name":"janeausten"
},
{
"count":1,
"bytes":14,
"name":"marktwain"
}
]
[
{
"count":0,
"bytes":0,
"name":"janeausten"
},
{
"count":1,
"bytes":14,
"name":"marktwain"
}
]
Example 2. XML example with Accept header
@ -100,19 +100,19 @@ format:
.. code-block:: xml
<?xml version="1.0" encoding="UTF-8"?>
<account name="AUTH_73f0aa26640f4971864919d0eb0f0880">
<container>
<name>janeausten</name>
<count>2</count>
<bytes>33</bytes>
</container>
<container>
<name>marktwain</name>
<count>1</count>
<bytes>14</bytes>
</container>
</account>
<?xml version="1.0" encoding="UTF-8"?>
<account name="AUTH_73f0aa26640f4971864919d0eb0f0880">
<container>
<name>janeausten</name>
<count>2</count>
<bytes>33</bytes>
</container>
<container>
<name>marktwain</name>
<count>1</count>
<bytes>14</bytes>
</container>
</account>
The remainder of the examples in this guide use standard, non-serialized
responses. However, all ``GET`` requests that perform list operations

112
doc/source/api/temporary_url_middleware.rst
View File

@ -21,11 +21,10 @@ a common prefix. They are useful for sharing a set of objects.
Ask your cloud administrator to enable the temporary URL feature. For
information, see :ref:`tempurl` in the *Source Documentation*.
Note
~~~~
.. note::
To use **POST** requests to upload objects to specific Object Storage
locations, use :doc:`form_post_middleware` instead of temporary URL middleware.
To use **POST** requests to upload objects to specific Object Storage
locations, use :doc:`form_post_middleware` instead of temporary URL middleware.
Temporary URL format
~~~~~~~~~~~~~~~~~~~~
@ -35,12 +34,12 @@ parameters:
**Example Temporary URL format**
.. code::
.. code:: none
https://swift-cluster.example.com/v1/my_account/container/object
?temp_url_sig=732fcac368abb10c78a4cbe95c3fab7f311584532bf779abd5074e13cbe8b88b
&temp_url_expires=1323479485
&filename=My+Test+File.pdf
https://swift-cluster.example.com/v1/my_account/container/object
?temp_url_sig=732fcac368abb10c78a4cbe95c3fab7f311584532bf779abd5074e13cbe8b88b
&temp_url_expires=1323479485
&filename=My+Test+File.pdf
The example shows these elements:
@ -71,12 +70,12 @@ A prefix-based temporary URL is similar but requires the parameter
``temp_url_prefix``, which must be equal to the common prefix shared
by all object names for which the URL is valid.
.. code::
.. code:: none
https://swift-cluster.example.com/v1/my_account/container/my_prefix/object
?temp_url_sig=732fcac368abb10c78a4cbe95c3fab7f311584532bf779abd5074e13cbe8b88b
&temp_url_expires=2011-12-10T01:11:25Z
&temp_url_prefix=my_prefix
https://swift-cluster.example.com/v1/my_account/container/my_prefix/object
?temp_url_sig=732fcac368abb10c78a4cbe95c3fab7f311584532bf779abd5074e13cbe8b88b
&temp_url_expires=2011-12-10T01:11:25Z
&temp_url_prefix=my_prefix
.. _secret_keys:
@ -109,15 +108,14 @@ The arbitrary values serve as the secret keys.
For example, use the **swift post** command to set the secret key to
*``MYKEY``*:
.. code::
.. code:: console
$ swift post -m "Temp-URL-Key:MYKEY"
$ swift post -m "Temp-URL-Key:MYKEY"
Note
~~~~
.. note::
Changing these headers invalidates any previously generated temporary
URLs within 60 seconds, which is the memcache time for the key.
Changing these headers invalidates any previously generated temporary
URLs within 60 seconds, which is the memcache time for the key.
HMAC signature for temporary URLs
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@ -145,33 +143,33 @@ temporary URLs:
**Example HMAC-SHA256 signature for object-based temporary URLs**
.. code::
.. code:: python
import hmac
from hashlib import sha256
from time import time
method = 'GET'
duration_in_seconds = 60*60*24
expires = int(time() + duration_in_seconds)
path = '/v1/my_account/container/object'
key = 'MYKEY'
hmac_body = '%s\n%s\n%s' % (method, expires, path)
signature = hmac.new(key, hmac_body, sha256).hexdigest()
import hmac
from hashlib import sha256
from time import time
method = 'GET'
duration_in_seconds = 60*60*24
expires = int(time() + duration_in_seconds)
path = '/v1/my_account/container/object'
key = 'MYKEY'
hmac_body = '%s\n%s\n%s' % (method, expires, path)
signature = hmac.new(key, hmac_body, sha256).hexdigest()
**Example HMAC-SHA512 signature for prefix-based temporary URLs**
.. code::
.. code:: python
import hmac
from hashlib import sha512
from time import time
method = 'GET'
duration_in_seconds = 60*60*24
expires = int(time() + duration_in_seconds)
path = 'prefix:/v1/my_account/container/my_prefix'
key = 'MYKEY'
hmac_body = '%s\n%s\n%s' % (method, expires, path)
signature = hmac.new(key, hmac_body, sha512).hexdigest()
import hmac
from hashlib import sha512
from time import time
method = 'GET'
duration_in_seconds = 60*60*24
expires = int(time() + duration_in_seconds)
path = 'prefix:/v1/my_account/container/my_prefix'
key = 'MYKEY'
hmac_body = '%s\n%s\n%s' % (method, expires, path)
signature = hmac.new(key, hmac_body, sha512).hexdigest()
Do not URL-encode the path when you generate the HMAC signature.
However, when you make the actual HTTP request, you should properly
@ -186,10 +184,10 @@ Authentication <http://www.ietf.org/rfc/rfc2104.txt>`__.
If you want to transform a UNIX timestamp into an ISO 8601 UTC timestamp,
you can use following code snippet:
.. code::
.. code:: python
import time
time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime(timestamp))
import time
time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime(timestamp))
Using the ``swift`` tool to generate a Temporary URL
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@ -198,32 +196,32 @@ The ``swift`` tool provides the tempurl_ option that
auto-generates the *``temp_url_sig``* and *``temp_url_expires``* query
parameters. For example, you might run this command:
.. code::
.. code:: console
$ swift tempurl GET 3600 /v1/my_account/container/object MYKEY
$ swift tempurl GET 3600 /v1/my_account/container/object MYKEY
.. note::
The ``swift`` tool is not yet updated and continues to use the
deprecated cipher SHA1.
The ``swift`` tool is not yet updated and continues to use the
deprecated cipher SHA1.
This command returns the path:
.. code::
.. code:: none
/v1/my_account/container/object
?temp_url_sig=5c4cc8886f36a9d0919d708ade98bf0cc71c9e91
&temp_url_expires=1374497657
/v1/my_account/container/object
?temp_url_sig=5c4cc8886f36a9d0919d708ade98bf0cc71c9e91
&temp_url_expires=1374497657
To create the temporary URL, prefix this path with the Object Storage
storage host name. For example, prefix the path with
``https://swift-cluster.example.com``, as follows:
.. code::
.. code:: none
https://swift-cluster.example.com/v1/my_account/container/object
?temp_url_sig=5c4cc8886f36a9d0919d708ade98bf0cc71c9e91
&temp_url_expires=1374497657
https://swift-cluster.example.com/v1/my_account/container/object
?temp_url_sig=5c4cc8886f36a9d0919d708ade98bf0cc71c9e91
&temp_url_expires=1374497657
Note that if the above example is copied exactly, and used in a command
shell, then the ampersand is interpreted as an operator and the URL

12
doc/source/api/use_content-encoding_metadata.rst
View File

@ -12,11 +12,11 @@ underlying media type (``Content-Type``) of the file, such as a video.
This example assigns an attachment type to the ``Content-Encoding``
header that indicates how the file is downloaded:
.. code::
.. code:: none
PUT /<api version>/<account>/<container>/<object> HTTP/1.1
Host: storage.clouddrive.com
X-Auth-Token: eaaafd18-0fed-4b3a-81b4-663c99ec1cbb
Content-Type: video/mp4
Content-Encoding: gzip
PUT /<api version>/<account>/<container>/<object> HTTP/1.1
Host: storage.clouddrive.com
X-Auth-Token: eaaafd18-0fed-4b3a-81b4-663c99ec1cbb
Content-Type: video/mp4
Content-Encoding: gzip

20
doc/source/api/use_the_content-disposition_metadata.rst
View File

@ -14,18 +14,18 @@ This example assigns an attachment type to the ``Content-Disposition``
header. This attachment type indicates that the file is to be downloaded
as ``goodbye.txt``:
.. code::
.. code:: console
# curl -i $publicURL/marktwain/goodbye -X POST -H "X-Auth-Token: $token" -H "Content-Length: 14" -H "Content-Type: application/octet-stream" -H "Content-Disposition: attachment; filename=goodbye.txt"
# curl -i $publicURL/marktwain/goodbye -X POST -H "X-Auth-Token: $token" -H "Content-Length: 14" -H "Content-Type: application/octet-stream" -H "Content-Disposition: attachment; filename=goodbye.txt"
.. code::
.. code:: console
HTTP/1.1 202 Accepted
Content-Length: 76
Content-Type: text/html; charset=UTF-8
X-Trans-Id: txa9b5e57d7f354d7ea9f57-0052e17e13
X-Openstack-Request-Id: txa9b5e57d7f354d7ea9f57-0052e17e13
Date: Thu, 23 Jan 2014 20:39:47 GMT
HTTP/1.1 202 Accepted
Content-Length: 76
Content-Type: text/html; charset=UTF-8
X-Trans-Id: txa9b5e57d7f354d7ea9f57-0052e17e13
X-Openstack-Request-Id: txa9b5e57d7f354d7ea9f57-0052e17e13
Date: Thu, 23 Jan 2014 20:39:47 GMT
<html><h1>Accepted</h1><p>The request is accepted for processing.</p></html>
<html><h1>Accepted</h1><p>The request is accepted for processing.</p></html>

2
doc/source/cors.rst
View File

@ -100,7 +100,7 @@ Test CORS Page
A sample cross-site test page is located in the project source tree
``doc/source/test-cors.html``.
.. literalinclude:: test-cors.html
.. literalinclude:: test-cors.html
.. _CORS: https://developer.mozilla.org/en-US/docs/HTTP/Access_control_CORS
.. _preflight request: https://developer.mozilla.org/en-US/docs/HTTP/Access_control_CORS#Preflighted_requests

26
doc/source/development_auth.rst
View File

@ -37,7 +37,7 @@ will be omitted.
It is highly recommended that authentication server implementers prefix their
tokens and Swift storage accounts they create with a configurable reseller
prefix (`AUTH_` by default with the included TempAuth). This prefix will avoid
prefix (``AUTH_`` by default with the included TempAuth). This prefix will avoid
conflicts with other authentication servers that might be using the same
Swift cluster. Otherwise, the Swift cluster will have to try all the resellers
until one validates a token or all fail.
@ -48,18 +48,18 @@ designations as you'll see later).
Example Authentication with TempAuth:
* Token AUTH_tkabcd is given to the TempAuth middleware in a request's
X-Auth-Token header.
* The TempAuth middleware validates the token AUTH_tkabcd and discovers
it matches the "tester" user within the "test" account for the storage
account "AUTH_storage_xyz".
* The TempAuth middleware sets the REMOTE_USER to
"test:tester,test,AUTH_storage_xyz"
* Now this user will have full access (via authorization procedures later)
to the AUTH_storage_xyz Swift storage account and access to containers in
other storage accounts, provided the storage account begins with the same
`AUTH_` reseller prefix and the container has an ACL specifying at least
one of those three groups.
* Token AUTH_tkabcd is given to the TempAuth middleware in a request's
X-Auth-Token header.
* The TempAuth middleware validates the token AUTH_tkabcd and discovers
it matches the "tester" user within the "test" account for the storage
account "AUTH_storage_xyz".
* The TempAuth middleware sets the REMOTE_USER to
"test:tester,test,AUTH_storage_xyz"
* Now this user will have full access (via authorization procedures later)
to the AUTH_storage_xyz Swift storage account and access to containers in
other storage accounts, provided the storage account begins with the same
``AUTH_`` reseller prefix and the container has an ACL specifying at least
one of those three groups.
Authorization is performed through callbacks by the Swift Proxy server to the
WSGI environment's swift.authorize value, if one is set. The swift.authorize

2
doc/source/development_ondisk_backends.rst
View File

@ -12,7 +12,7 @@ from the details of how data is laid out and stored on-disk.
The APIs are documented in the reference implementations for all three
servers. For historical reasons, the object server backend reference
implementation module is named `diskfile`, while the account and container
implementation module is named ``diskfile``, while the account and container
server backend reference implementation modules are named appropriately.
This API is still under development and not yet finalized.

291
doc/source/ops_runbook/diagnose.rst
View File

@ -36,11 +36,11 @@ External monitoring
We use pingdom.com to monitor the external Swift API. We suggest the
following:
- Do a GET on ``/healthcheck``
- Do a GET on ``/healthcheck``
- Create a container, make it public (x-container-read:
.r*,.rlistings), create a small file in the container; do a GET
on the object
- Create a container, make it public (``x-container-read:
.r*,.rlistings``), create a small file in the container; do a GET
on the object
Diagnose: General approach
--------------------------
@ -82,11 +82,11 @@ if any servers are down. We suggest you run it regularly
to the last report without having to wait for a long-running command
to complete.
Diagnose: Is system responding to /healthcheck?
-----------------------------------------------
Diagnose: Is system responding to ``/healthcheck``?
---------------------------------------------------
When you want to establish if a swift endpoint is running, run ``curl -k``
against https://*[ENDPOINT]*/healthcheck.
against ``https://$ENDPOINT/healthcheck``.
.. _swift_logs:
@ -209,11 +209,11 @@ Diagnose: Parted reports the backup GPT table is corrupt
- If a GPT table is broken, a message like the following should be
observed when the following command is run:
.. code::
.. code:: console
$ sudo parted -l
.. code::
.. code:: console
Error: The backup GPT table is corrupt, but the primary appears OK,
so that will be used.
@ -232,40 +232,40 @@ invalid filesystem label. In such cases proceed as follows:
#. Verify that the disk labels are correct:
.. code::
.. code:: console
FS=/dev/sd#1
$ FS=/dev/sd#1
sudo parted -l | grep object
$ sudo parted -l | grep object
#. If partition labels are inconsistent then, resolve the disk label issues
before proceeding:
.. code::
.. code:: console
sudo parted -s ${FS} name ${PART_NO} ${PART_NAME} #Partition Label
#PART_NO is 1 for object disks and 3 for OS disks
#PART_NAME follows the convention seen in "sudo parted -l | grep object"
$ sudo parted -s ${FS} name ${PART_NO} ${PART_NAME} #Partition Label
$ # PART_NO is 1 for object disks and 3 for OS disks
$ # PART_NAME follows the convention seen in "sudo parted -l | grep object"
#. If the Filesystem label is missing then create it with care:
.. code::
.. code:: console
sudo xfs_admin -l ${FS} #Filesystem label (12 Char limit)
$ sudo xfs_admin -l ${FS} #Filesystem label (12 Char limit)
#Check for the existence of a FS label
$ # Check for the existence of a FS label
OBJNO=<3 Length Object No.>
$ OBJNO=<3 Length Object No.>
#I.E OBJNO for sw-stbaz3-object0007 would be 007
$ # I.E OBJNO for sw-stbaz3-object0007 would be 007
DISKNO=<3 Length Disk No.>
$ DISKNO=<3 Length Disk No.>
#I.E DISKNO for /dev/sdb would be 001, /dev/sdc would be 002 etc.
$ # I.E DISKNO for /dev/sdb would be 001, /dev/sdc would be 002 etc.
sudo xfs_admin -L "obj${OBJNO}dsk${DISKNO}" ${FS}
$ sudo xfs_admin -L "obj${OBJNO}dsk${DISKNO}" ${FS}
#Create a FS Label
$ # Create a FS Label
Diagnose: Failed LUNs
---------------------
@ -293,9 +293,9 @@ Otherwise the lun can be re-enabled as follows:
LUN. You will come back later and grep this file for more details, but
just generate it for now.
.. code::
.. code:: console
sudo hpssacli controller all diag file=/tmp/hpacu.diag ris=on xml=off zip=off
$ sudo hpssacli controller all diag file=/tmp/hpacu.diag ris=on xml=off zip=off
Export the following variables using the below instructions before
proceeding further.
@ -304,16 +304,16 @@ proceeding further.
failed drive's number and array value (example output: "array A
logicaldrive 1..." would be exported as LDRIVE=1):
.. code::
.. code:: console
sudo hpssacli controller slot=1 ld all show
$ sudo hpssacli controller slot=1 ld all show
#. Export the number of the logical drive that was retrieved from the
previous command into the LDRIVE variable:
.. code::
.. code:: console
export LDRIVE=<LogicalDriveNumber>
$ export LDRIVE=<LogicalDriveNumber>
#. Print the array value and Port:Box:Bay for all drives and take note of
the Port:Box:Bay for the failed drive (example output: " array A
@ -324,9 +324,9 @@ proceeding further.
in the case of "array c"), but we will run a different command to be sure
we are operating on the correct device.
.. code::
.. code:: console
sudo hpssacli controller slot=1 pd all show
$ sudo hpssacli controller slot=1 pd all show
.. note::
@ -339,24 +339,24 @@ proceeding further.
#. Export the Port:Box:Bay for the failed drive into the PBOX variable:
.. code::
.. code:: console
export PBOX=<Port:Box:Bay>
$ export PBOX=<Port:Box:Bay>
#. Print the physical device information and take note of the Disk Name
(example output: "Disk Name: /dev/sdk" would be exported as
DEV=/dev/sdk):
.. code::
.. code:: console
sudo hpssacli controller slot=1 ld ${LDRIVE} show detail | grep -i "Disk Name"
$ sudo hpssacli controller slot=1 ld ${LDRIVE} show detail | grep -i "Disk Name"
#. Export the device name variable from the preceding command (example:
/dev/sdk):
.. code::
.. code:: console
export DEV=<Device>
$ export DEV=<Device>
#. Export the filesystem variable. Disks that are split between the
operating system and data storage, typically sda and sdb, should only
@ -367,39 +367,39 @@ proceeding further.
data filesystem for the device in question as the export. For example:
/dev/sdk1.
.. code::
.. code:: console
export FS=<Filesystem>
$ export FS=<Filesystem>
#. Verify the LUN is failed, and the device is not:
.. code::
.. code:: console
sudo hpssacli controller slot=1 ld all show
sudo hpssacli controller slot=1 pd all show
sudo hpssacli controller slot=1 ld ${LDRIVE} show detail
sudo hpssacli controller slot=1 pd ${PBOX} show detail
$ sudo hpssacli controller slot=1 ld all show
$ sudo hpssacli controller slot=1 pd all show
$ sudo hpssacli controller slot=1 ld ${LDRIVE} show detail
$ sudo hpssacli controller slot=1 pd ${PBOX} show detail
#. Stop the swift and rsync service:
.. code::
.. code:: console
sudo service rsync stop
sudo swift-init shutdown all
$ sudo service rsync stop
$ sudo swift-init shutdown all
#. Unmount the problem drive, fix the LUN and the filesystem:
.. code::
.. code:: console
sudo umount ${FS}
$ sudo umount ${FS}
#. If umount fails, you should run lsof search for the mountpoint and
kill any lingering processes before repeating the unpount:
.. code::
.. code:: console
sudo hpacucli controller slot=1 ld ${LDRIVE} modify reenable
sudo xfs_repair ${FS}
$ sudo hpacucli controller slot=1 ld ${LDRIVE} modify reenable
$ sudo xfs_repair ${FS}
#. If the ``xfs_repair`` complains about possible journal data, use the
``xfs_repair -L`` option to zeroise the journal log.
@ -407,21 +407,21 @@ proceeding further.
#. Once complete test-mount the filesystem, and tidy up its lost and
found area.
.. code::
.. code:: console
sudo mount ${FS} /mnt
sudo rm -rf /mnt/lost+found/
sudo umount /mnt
$ sudo mount ${FS} /mnt
$ sudo rm -rf /mnt/lost+found/
$ sudo umount /mnt
#. Mount the filesystem and restart swift and rsync.
#. Run the following to determine if a DC ticket is needed to check the
cables on the node:
.. code::
.. code:: console
grep -y media.exchanged /tmp/hpacu.diag
grep -y hot.plug.count /tmp/hpacu.diag
$ grep -y media.exchanged /tmp/hpacu.diag
$ grep -y hot.plug.count /tmp/hpacu.diag
#. If the output reports any non 0x00 values, it suggests that the cables
should be checked. For example, log a DC ticket to check the sas cables
@ -440,7 +440,7 @@ If the diagnostics report a message such as ``sda: drive is slow``, you
should log onto the node and run the following command (remove ``-c 1`` option to continuously monitor
the data):
.. code::
.. code:: console
$ /usr/bin/collectl -s D -c 1
waiting for 1 second sample...
@ -475,7 +475,7 @@ otherwise hardware replacement is needed.
Another way to look at the data is as follows:
.. code::
.. code:: console
$ /opt/hp/syseng/disk-anal.pl -d
Disk: sda Wait: 54580 371 65 25 12 6 6 0 1 2 0 46
@ -524,7 +524,7 @@ historical data. You can look at recent data as follows. It only looks
at data from 13:15 to 14:15. As you can see, this is a relatively clean
system (few if any long wait or service times):
.. code::
.. code:: console
$ /opt/hp/syseng/disk-anal.pl -d -t 13:15-14:15
Disk: sda Wait: 3600 0 0 0 0 0 0 0 0 0 0 0
@ -582,21 +582,21 @@ Running tests
#. Prepare the ``target`` node as follows:
.. code::
.. code:: console
sudo iptables -I INPUT -p tcp -j ACCEPT
$ sudo iptables -I INPUT -p tcp -j ACCEPT
Or, do:
.. code::
.. code:: console
sudo ufw allow 12866/tcp
$ sudo ufw allow 12866/tcp
#. On the ``source`` node, run the following command to check
throughput. Note the double-dash before the -P option.
The command takes 10 seconds to complete. The ``target`` node is 192.168.245.5.
.. code::
.. code:: console
$ netperf -H 192.168.245.5 -- -P 12866
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 12866 AF_INET to
@ -609,7 +609,7 @@ Running tests
#. On the ``source`` node, run the following command to check latency:
.. code::
.. code:: console
$ netperf -H 192.168.245.5 -t TCP_RR -- -P 12866
MIGRATED TCP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 12866
@ -644,21 +644,21 @@ Diagnose: Remapping sectors experiencing UREs
#. Set the environment variables SEC, DEV & FS, for example:
.. code::
.. code:: console
SEC=2930954256
DEV=/dev/sdi
FS=/dev/sdi1
$ SEC=2930954256
$ DEV=/dev/sdi
$ FS=/dev/sdi1
#. Verify that the sector is bad:
.. code::
.. code:: console
sudo dd if=${DEV} of=/dev/null bs=512 count=1 skip=${SEC}
$ sudo dd if=${DEV} of=/dev/null bs=512 count=1 skip=${SEC}
#. If the sector is bad this command will output an input/output error:
.. code::
.. code:: console
dd: reading `/dev/sdi`: Input/output error
0+0 records in
@ -667,28 +667,28 @@ Diagnose: Remapping sectors experiencing UREs
#. Prevent chef from attempting to re-mount the filesystem while the
repair is in progress:
.. code::
.. code:: console
sudo mv /etc/chef/client.pem /etc/chef/xx-client.xx-pem
$ sudo mv /etc/chef/client.pem /etc/chef/xx-client.xx-pem
#. Stop the swift and rsync service:
.. code::
.. code:: console
sudo service rsync stop
sudo swift-init shutdown all
$ sudo service rsync stop
$ sudo swift-init shutdown all
#. Unmount the problem drive:
.. code::
.. code:: console
sudo umount ${FS}
$ sudo umount ${FS}
#. Overwrite/remap the bad sector:
.. code::
.. code:: console
sudo dd_rescue -d -A -m8b -s ${SEC}b ${DEV} ${DEV}
$ sudo dd_rescue -d -A -m8b -s ${SEC}b ${DEV} ${DEV}
#. This command should report an input/output error the first time
it is run. Run the command a second time, if it successfully remapped
@ -696,9 +696,9 @@ Diagnose: Remapping sectors experiencing UREs
#. Verify the sector is now readable:
.. code::
.. code:: console
sudo dd if=${DEV} of=/dev/null bs=512 count=1 skip=${SEC}
$ sudo dd if=${DEV} of=/dev/null bs=512 count=1 skip=${SEC}
#. If the sector is now readable this command should not report an
input/output error.
@ -706,24 +706,24 @@ Diagnose: Remapping sectors experiencing UREs
#. If more than one problem sector is listed, set the SEC environment
variable to the next sector in the list:
.. code::
.. code:: console
SEC=123456789
$ SEC=123456789
#. Repeat from step 8.
#. Repair the filesystem:
.. code::
.. code:: console
sudo xfs_repair ${FS}
$ sudo xfs_repair ${FS}
#. If ``xfs_repair`` reports that the filesystem has valuable filesystem
changes:
.. code::
.. code:: console
sudo xfs_repair ${FS}
$ sudo xfs_repair ${FS}
Phase 1 - find and verify superblock...
Phase 2 - using internal log
- zero log...
@ -739,11 +739,11 @@ Diagnose: Remapping sectors experiencing UREs
#. You should attempt to mount the filesystem, and clear the lost+found
area:
.. code::
.. code:: console
sudo mount $FS /mnt
sudo rm -rf /mnt/lost+found/*
sudo umount /mnt
$ sudo mount $FS /mnt
$ sudo rm -rf /mnt/lost+found/*
$ sudo umount /mnt
#. If the filesystem fails to mount then you will need to use the
``xfs_repair -L`` option to force log zeroing.
@ -752,16 +752,16 @@ Diagnose: Remapping sectors experiencing UREs
#. If ``xfs_repair`` reports that an additional input/output error has been
encountered, get the sector details as follows:
.. code::
.. code:: console
sudo grep "I/O error" /var/log/kern.log | grep sector | tail -1
$ sudo grep "I/O error" /var/log/kern.log | grep sector | tail -1
#. If new input/output error is reported then set the SEC environment
variable to the problem sector number:
.. code::
.. code:: console
SEC=234567890
$ SEC=234567890
#. Repeat from step 8
@ -806,31 +806,31 @@ errors, it may well indicate a cable, switch, or network issue.
Get an overview of the interface with:
.. code::
.. code:: console
sudo ifconfig eth{n}
sudo ethtool eth{n}
$ sudo ifconfig eth{n}
$ sudo ethtool eth{n}
The ``Link Detected:`` indicator will read ``yes`` if the nic is
cabled.
Establish the adapter type with:
.. code::
.. code:: console
sudo ethtool -i eth{n}
$ sudo ethtool -i eth{n}
Gather the interface statistics with:
.. code::
.. code:: console
sudo ethtool -S eth{n}
$ sudo ethtool -S eth{n}
If the nick supports self test, this can be performed with:
.. code::
.. code:: console
sudo ethtool -t eth{n}
$ sudo ethtool -t eth{n}
Self tests should read ``PASS`` if the nic is operating correctly.
@ -853,9 +853,9 @@ A replicator reports in its log that remaining time exceeds
making progress. Another useful way to check this is with the
'swift-recon -r' command on a swift proxy server:
.. code::
.. code:: console
sudo swift-recon -r
$ sudo swift-recon -r
===============================================================================
--> Starting reconnaissance on 384 hosts
@ -877,9 +877,9 @@ You can further check if the object replicator is stuck by logging on
the object server and checking the object replicator progress with
the following command:
.. code::
.. code:: console
# sudo grep object-rep /var/log/swift/background.log | grep -e "Starting object replication" -e "Object replication complete" -e "partitions rep"
$ sudo grep object-rep /var/log/swift/background.log | grep -e "Starting object replication" -e "Object replication complete" -e "partitions rep"
Jul 16 06:25:46 192.168.245.4 object-replicator 15344/16450 (93.28%) partitions replicated in 69018.48s (0.22/sec, 22h remaining)
Jul 16 06:30:46 192.168.245.4object-replicator 15344/16450 (93.28%) partitions replicated in 69318.58s (0.22/sec, 22h remaining)
Jul 16 06:35:46 192.168.245.4 object-replicator 15344/16450 (93.28%) partitions replicated in 69618.63s (0.22/sec, 23h remaining)
@ -912,9 +912,9 @@ One of the reasons for the object replicator hanging like this is
filesystem corruption on the drive. The following is a typical log entry
of a corrupted filesystem detected by the object replicator:
.. code::
.. code:: console
# sudo bzgrep "Remote I/O error" /var/log/swift/background.log* |grep srv | - tail -1
$ sudo bzgrep "Remote I/O error" /var/log/swift/background.log* |grep srv | - tail -1
Jul 12 03:33:30 192.168.245.4 object-replicator STDOUT: ERROR:root:Error hashing suffix#012Traceback (most recent call last):#012 File
"/usr/lib/python2.7/dist-packages/swift/obj/replicator.py", line 199, in get_hashes#012 hashes[suffix] = hash_suffix(suffix_dir,
reclaim_age)#012 File "/usr/lib/python2.7/dist-packages/swift/obj/replicator.py", line 84, in hash_suffix#012 path_contents =
@ -922,9 +922,9 @@ of a corrupted filesystem detected by the object replicator:
An ``ls`` of the problem file or directory usually shows something like the following:
.. code::
.. code:: console
# ls -l /srv/node/disk4/objects/1643763/b51
$ ls -l /srv/node/disk4/objects/1643763/b51
ls: cannot access /srv/node/disk4/objects/1643763/b51: Remote I/O error
If no entry with ``Remote I/O error`` occurs in the ``background.log`` it is
@ -935,27 +935,27 @@ restart the object-replicator.
#. Stop the object-replicator:
.. code::
.. code:: console
# sudo swift-init object-replicator stop
#. Make sure the object replicator has stopped, if it has hung, the stop
command will not stop the hung process:
.. code::
.. code:: console
# ps auxww | - grep swift-object-replicator
#. If the previous ps shows the object-replicator is still running, kill
the process:
.. code::
.. code:: console
# kill -9 <pid-of-swift-object-replicator>
#. Start the object-replicator:
.. code::
.. code:: console
# sudo swift-init object-replicator start
@ -964,14 +964,14 @@ to repair the problem filesystem.
#. Stop swift and rsync:
.. code::
.. code:: console
# sudo swift-init all shutdown
# sudo service rsync stop
#. Make sure all swift process have stopped:
.. code::
.. code:: console
# ps auxww | grep swift | grep python
@ -979,13 +979,13 @@ to repair the problem filesystem.
#. Unmount the problem filesystem:
.. code::
.. code:: console
# sudo umount /srv/node/disk4
#. Repair the filesystem:
.. code::
.. code:: console
# sudo xfs_repair -P /dev/sde1
@ -1002,7 +1002,7 @@ The CPU load average on an object server, as shown with the
'uptime' command, is typically under 10 when the server is
lightly-moderately loaded:
.. code::
.. code:: console
$ uptime
07:59:26 up 99 days, 5:57, 1 user, load average: 8.59, 8.39, 8.32
@ -1014,7 +1014,7 @@ However, sometimes the CPU load average can increase significantly. The
following is an example of an object server that has extremely high CPU
load:
.. code::
.. code:: console
$ uptime
07:44:02 up 18:22, 1 user, load average: 407.12, 406.36, 404.59
@ -1050,9 +1050,9 @@ Further issues and resolutions
given server.
- Run this command:
.. code::
.. code:: console
sudo swift-init all start
$ sudo swift-init all start
Examine messages in the swift log files to see if there are any
error messages related to any of the swift processes since the time you
@ -1080,9 +1080,9 @@ Further issues and resolutions
- Restart the swift processes on the affected node:
.. code::
.. code:: console
% sudo swift-init all reload
$ sudo swift-init all reload
Urgency:
If known performance problem: Immediate
@ -1135,18 +1135,18 @@ Further issues and resolutions
For example, it is running at 100 Mb/s and the NIC is a 1Ge NIC.
- 1. Try resetting the interface with:
.. code::
.. code:: console
sudo ethtool -s eth0 speed 1000
$ sudo ethtool -s eth0 speed 1000
... and then run:
... and then run:
.. code::
.. code:: console
sudo lshw -class
$ sudo lshw -class
See if size goes to the expected speed. Failing
that, check hardware (NIC cable/switch port).
See if size goes to the expected speed. Failing
that, check hardware (NIC cable/switch port).
2. If persistent, consider shutting down the server (especially if a proxy)
until the problem is identified and resolved. If you leave this server
@ -1183,9 +1183,11 @@ Further issues and resolutions
- Urgency: Medium
This may have been triggered by a recent restart of the rsyslog daemon.
Restart the service with:
.. code::
sudo swift-init <service> reload
.. code:: console
$ sudo swift-init <service> reload
* - Object replicator: Reports the remaining time and that time is more than 100 hours.
- Each replication cycle the object replicator writes a log message to its log
reporting statistics about the current cycle. This includes an estimate for the
@ -1193,9 +1195,10 @@ Further issues and resolutions
100 hours, there is a problem with the replication process.
- Urgency: Medium
Restart the service with:
.. code::
sudo swift-init object-replicator reload
.. code:: console
$ sudo swift-init object-replicator reload
Check that the remaining replication time is going down.

24
doc/source/ops_runbook/maintenance.rst
View File

@ -27,9 +27,9 @@ if you wait a while things get better.
For example:
.. code::
.. code:: console
sudo swift-recon -rla
$ sudo swift-recon -rla
===============================================================================
[2012-03-10 12:57:21] Checking async pendings on 384 hosts...
Async stats: low: 0, high: 1, avg: 0, total: 1
@ -52,7 +52,7 @@ system. Rules-of-thumb for 'good' recon output are:
- Nodes that respond are up and running Swift. If all nodes respond,
that is a good sign. But some nodes may time out. For example:
.. code::
.. code:: console
-> [http://<redacted>.29:6200/recon/load:] <urlopen error [Errno 111] ECONNREFUSED>
-> [http://<redacted>.31:6200/recon/load:] <urlopen error timed out>
@ -83,7 +83,7 @@ system. Rules-of-thumb for 'good' recon output are:
For comparison here is the recon output for the same system above when
two entire racks of Swift are down:
.. code::
.. code:: console
[2012-03-10 16:56:33] Checking async pendings on 384 hosts...
-> http://<redacted>.22:6200/recon/async: <urlopen error timed out>
@ -152,9 +152,9 @@ Here is an example of noting and tracking down a problem with recon.
Running reccon shows some async pendings:
.. code::
.. code:: console
bob@notso:~/swift-1.4.4/swift$ ssh -q <redacted>.132.7 sudo swift-recon -alr
$ ssh -q <redacted>.132.7 sudo swift-recon -alr
===============================================================================
[2012-03-14 17:25:55] Checking async pendings on 384 hosts...
Async stats: low: 0, high: 23, avg: 8, total: 3356
@ -172,9 +172,9 @@ Why? Running recon again with -av swift (not shown here) tells us that
the node with the highest (23) is <redacted>.72.61. Looking at the log
files on <redacted>.72.61 we see:
.. code::
.. code:: console
souzab@<redacted>:~$ sudo tail -f /var/log/swift/background.log | - grep -i ERROR
$ sudo tail -f /var/log/swift/background.log | - grep -i ERROR
Mar 14 17:28:06 <redacted> container-replicator ERROR Remote drive not mounted
{'zone': 5, 'weight': 1952.0, 'ip': '<redacted>.204.119', 'id': 5481, 'meta': '', 'device': 'disk6', 'port': 6201}
Mar 14 17:28:06 <redacted> container-replicator ERROR Remote drive not mounted
@ -235,7 +235,7 @@ Procedure
running the ring builder on a proxy node to determine which zones
the storage nodes are in. For example:
.. code::
.. code:: console
% sudo swift-ring-builder /etc/swift/object.builder
/etc/swift/object.builder, build version 1467
@ -258,7 +258,7 @@ Procedure
builder again, this time with the ``list_parts`` option and specify
the nodes under consideration. For example:
.. code::
.. code:: console
% sudo swift-ring-builder /etc/swift/object.builder list_parts <redacted>.8 <redacted>.15 <redacted>.72.2
Partition Matches
@ -283,7 +283,7 @@ Procedure
small, and is proportional to the number of entries that have a 3 in
the Matches column. For example:
.. code::
.. code:: console
Partition Matches
26865 3
@ -300,7 +300,7 @@ Procedure
#. A quick way to count the number of rows with 3 matches is:
.. code::
.. code:: console
% sudo swift-ring-builder /etc/swift/object.builder list_parts <redacted>.8 <redacted>.15 <redacted>.72.2 | grep "3$" | wc -l

78
doc/source/ops_runbook/procedures.rst
View File

@ -10,13 +10,13 @@ Fix broken GPT table (broken disk partition)
- If a GPT table is broken, a message like the following should be
observed when the command...
.. code::
.. code:: console
$ sudo parted -l
- ... is run.
.. code::
.. code:: console
...
Error: The backup GPT table is corrupt, but the primary appears OK, so that will
@ -25,13 +25,13 @@ Fix broken GPT table (broken disk partition)
#. To fix this, firstly install the ``gdisk`` program to fix this:
.. code::
.. code:: console
$ sudo aptitude install gdisk
#. Run ``gdisk`` for the particular drive with the damaged partition:
.. code:
.. code: console
$ sudo gdisk /dev/sd*a-l*
GPT fdisk (gdisk) version 0.6.14
@ -57,7 +57,7 @@ Fix broken GPT table (broken disk partition)
and finally ``w`` (write table to disk and exit). Will also need to
enter ``Y`` when prompted in order to confirm actions.
.. code::
.. code:: console
Command (? for help): r
@ -92,7 +92,7 @@ Fix broken GPT table (broken disk partition)
#. Running the command:
.. code::
.. code:: console
$ sudo parted /dev/sd#
@ -100,7 +100,7 @@ Fix broken GPT table (broken disk partition)
#. Finally, uninstall ``gdisk`` from the node:
.. code::
.. code:: console
$ sudo aptitude remove gdisk
@ -112,20 +112,20 @@ Procedure: Fix broken XFS filesystem
#. A filesystem may be corrupt or broken if the following output is
observed when checking its label:
.. code::
.. code:: console
$ sudo xfs_admin -l /dev/sd#
cache_node_purge: refcount was 1, not zero (node=0x25d5ee0)
xfs_admin: cannot read root inode (117)
cache_node_purge: refcount was 1, not zero (node=0x25d92b0)
xfs_admin: cannot read realtime bitmap inode (117)
bad sb magic # 0 in AG 1
failed to read label in AG 1
cache_node_purge: refcount was 1, not zero (node=0x25d5ee0)
xfs_admin: cannot read root inode (117)
cache_node_purge: refcount was 1, not zero (node=0x25d92b0)
xfs_admin: cannot read realtime bitmap inode (117)
bad sb magic # 0 in AG 1
failed to read label in AG 1
#. Run the following commands to remove the broken/corrupt filesystem and replace.
(This example uses the filesystem ``/dev/sdb2``) Firstly need to replace the partition:
.. code::
.. code:: console
$ sudo parted
GNU Parted 2.3
@ -167,7 +167,7 @@ Procedure: Fix broken XFS filesystem
#. Next step is to scrub the filesystem and format:
.. code::
.. code:: console
$ sudo dd if=/dev/zero of=/dev/sdb2 bs=$((1024*1024)) count=1
1+0 records in
@ -175,19 +175,19 @@ Procedure: Fix broken XFS filesystem
1048576 bytes (1.0 MB) copied, 0.00480617 s, 218 MB/s
$ sudo /sbin/mkfs.xfs -f -i size=1024 /dev/sdb2
meta-data=/dev/sdb2 isize=1024 agcount=4, agsize=106811524 blks
= sectsz=512 attr=2, projid32bit=0
data = bsize=4096 blocks=427246093, imaxpct=5
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0
log =internal log bsize=4096 blocks=208616, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
= sectsz=512 attr=2, projid32bit=0
data = bsize=4096 blocks=427246093, imaxpct=5
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0
log =internal log bsize=4096 blocks=208616, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
#. You should now label and mount your filesystem.
#. Can now check to see if the filesystem is mounted using the command:
.. code::
.. code:: console
$ mount
@ -204,7 +204,7 @@ Procedure: Checking if an account is okay
You must know the tenant/project ID. You can check if the account is okay as follows from a proxy.
.. code::
.. code:: console
$ sudo -u swift /opt/hp/swift/bin/swift-direct show AUTH_<project-id>
@ -214,7 +214,7 @@ containers, or an error indicating that the resource could not be found.
Alternatively, you can use ``swift-get-nodes`` to find the account database
files. Run the following on a proxy:
.. code::
.. code:: console
$ sudo swift-get-nodes /etc/swift/account.ring.gz AUTH_<project-id>
@ -239,7 +239,7 @@ Log onto one of the swift proxy servers.
Use swift-direct to show this accounts usage:
.. code::
.. code:: console
$ sudo -u swift /opt/hp/swift/bin/swift-direct show AUTH_<project-id>
Status: 200
@ -288,7 +288,7 @@ re-create the account as follows:
servers). The output has been truncated so we can focus on the import pieces
of data:
.. code::
.. code:: console
$ sudo swift-get-nodes /etc/swift/account.ring.gz AUTH_4ebe3039674d4864a11fe0864ae4d905
...
@ -308,7 +308,7 @@ re-create the account as follows:
#. Before proceeding check that the account is really deleted by using curl. Execute the
commands printed by ``swift-get-nodes``. For example:
.. code::
.. code:: console
$ curl -I -XHEAD "http://192.168.245.5:6202/disk1/3934/AUTH_4ebe3039674d4864a11fe0864ae4d905"
HTTP/1.1 404 Not Found
@ -323,7 +323,7 @@ re-create the account as follows:
#. Use the ssh commands printed by ``swift-get-nodes`` to check if database
files exist. For example:
.. code::
.. code:: console
$ ssh 192.168.245.5 "ls -lah ${DEVICE:-/srv/node*}/disk1/accounts/3934/052/f5ecf8b40de3e1b0adb0dbe576874052"
total 20K
@ -344,7 +344,7 @@ re-create the account as follows:
#. Delete the database files. For example:
.. code::
.. code:: console
$ ssh 192.168.245.5
$ cd /srv/node/disk1/accounts/3934/052/f5ecf8b40de3e1b0adb0dbe576874052
@ -374,9 +374,9 @@ balancers, customer's are not impacted by the misbehaving proxy.
#. Shut down Swift as follows:
.. code::
.. code:: console
sudo swift-init proxy shutdown
$ sudo swift-init proxy shutdown
.. note::
@ -384,15 +384,15 @@ balancers, customer's are not impacted by the misbehaving proxy.
#. Create the ``/etc/swift/disabled-by-file`` file. For example:
.. code::
.. code:: console
sudo touch /etc/swift/disabled-by-file
$ sudo touch /etc/swift/disabled-by-file
#. Optional, restart Swift:
.. code::
.. code:: console
sudo swift-init proxy start
$ sudo swift-init proxy start
It works because the healthcheck middleware looks for /etc/swift/disabled-by-file.
If it exists, the middleware will return 503/error instead of 200/OK. This means the load balancer
@ -403,9 +403,9 @@ Procedure: Ad-Hoc disk performance test
You can get an idea whether a disk drive is performing as follows:
.. code::
.. code:: console
sudo dd bs=1M count=256 if=/dev/zero conv=fdatasync of=/srv/node/disk11/remember-to-delete-this-later
$ sudo dd bs=1M count=256 if=/dev/zero conv=fdatasync of=/srv/node/disk11/remember-to-delete-this-later
You can expect ~600MB/sec. If you get a low number, repeat many times as
Swift itself may also read or write to the disk, hence giving a lower

38
doc/source/ops_runbook/troubleshooting.rst
View File

@ -16,20 +16,20 @@ transactions from this user. The linux ``bzgrep`` command can be used to
search all the proxy log files on a node including the ``.bz2`` compressed
files. For example:
.. code::
.. code:: console
$ PDSH_SSH_ARGS_APPEND="-o StrictHostKeyChecking=no" pdsh -l <yourusername> -R ssh \
-w <redacted>.68.[4-11,132-139 4-11,132-139],<redacted>.132.[4-11,132-139] \
'sudo bzgrep -w AUTH_redacted-4962-4692-98fb-52ddda82a5af /var/log/swift/proxy.log*' | dshbak -c
.
.
----------------
<redacted>.132.6
----------------
Feb 29 08:51:57 sw-aw2az2-proxy011 proxy-server <redacted>.16.132
<redacted>.66.8 29/Feb/2012/08/51/57 GET /v1.0/AUTH_redacted-4962-4692-98fb-52ddda82a5af
/%3Fformat%3Djson HTTP/1.0 404 - - <REDACTED>_4f4d50c5e4b064d88bd7ab82 - - -
tx429fc3be354f434ab7f9c6c4206c1dc3 - 0.0130
.
.
----------------
<redacted>.132.6
----------------
Feb 29 08:51:57 sw-aw2az2-proxy011 proxy-server <redacted>.16.132
<redacted>.66.8 29/Feb/2012/08/51/57 GET /v1.0/AUTH_redacted-4962-4692-98fb-52ddda82a5af
/%3Fformat%3Djson HTTP/1.0 404 - - <REDACTED>_4f4d50c5e4b064d88bd7ab82 - - -
tx429fc3be354f434ab7f9c6c4206c1dc3 - 0.0130
This shows a ``GET`` operation on the users account.
@ -40,7 +40,7 @@ This shows a ``GET`` operation on the users account.
Using the transaction ID, ``tx429fc3be354f434ab7f9c6c4206c1dc3`` you can
search the swift object servers log files for this transaction ID:
.. code::
.. code:: console
$ PDSH_SSH_ARGS_APPEND="-o StrictHostKeyChecking=no" pdsh -l <yourusername> -R ssh \
-w <redacted>.72.[4-67|4-67],<redacted>.[4-67|4-67],<redacted>.[4-67|4-67],<redacted>.204.[4-131] \
@ -79,7 +79,7 @@ search the swift object servers log files for this transaction ID:
Next, use the ``swift-get-nodes`` command to determine exactly where the
user's account data is stored:
.. code::
.. code:: console
$ sudo swift-get-nodes /etc/swift/account.ring.gz AUTH_redacted-4962-4692-98fb-52ddda82a5af
Account AUTH_redacted-4962-4692-98fb-52ddda82a5af
@ -119,7 +119,7 @@ user's account data is stored:
Check each of the primary servers, <redacted>.31, <redacted>.204.70 and <redacted>.72.16, for
this users account. For example on <redacted>.72.16:
.. code::
.. code:: console
$ ls -lah /srv/node/disk9/accounts/198875/696/1846d99185f8a0edaf65cfbf37439696/
total 1.0M
@ -131,7 +131,7 @@ this users account. For example on <redacted>.72.16:
So this users account db, an sqlite db is present. Use sqlite to
checkout the account:
.. code::
.. code:: console
$ sudo cp /srv/node/disk9/accounts/198875/696/1846d99185f8a0edaf65cfbf37439696/1846d99185f8a0edaf65cfbf37439696.db /tmp
$ sudo sqlite3 /tmp/1846d99185f8a0edaf65cfbf37439696.db
@ -156,7 +156,7 @@ checkout the account:
why the GET operations are returning 404, not found. Check the account
delete date/time:
.. code::
.. code:: console
$ python
@ -167,7 +167,7 @@ checkout the account:
Next try and find the ``DELETE`` operation for this account in the proxy
server logs:
.. code::
.. code:: console
$ PDSH_SSH_ARGS_APPEND="-o StrictHostKeyChecking=no" pdsh -l <yourusername> -R ssh \
-w <redacted>.68.[4-11,132-139 4-11,132-139],<redacted>.132.[4-11,132-139|4-11,132-139] \
@ -206,7 +206,7 @@ as follows:
Examine the object in question:
.. code::
.. code:: console
$ sudo -u swift /opt/hp/swift/bin/swift-direct head 132345678912345 container_name obj_name
@ -219,14 +219,14 @@ name of the objects this means it is a DLO. For example,
if ``X-Object-Manifest`` is ``container2/seg-blah``, list the contents
of the container container2 as follows:
.. code::
.. code:: console
$ sudo -u swift /opt/hp/swift/bin/swift-direct show 132345678912345 container2
Pick out the objects whose names start with ``seg-blah``.
Delete the segment objects as follows:
.. code::
.. code:: console
$ sudo -u swift /opt/hp/swift/bin/swift-direct delete 132345678912345 container2 seg-blah01
$ sudo -u swift /opt/hp/swift/bin/swift-direct delete 132345678912345 container2 seg-blah02

178
doc/source/policies_saio.rst
View File

@ -22,39 +22,45 @@ to understand and adding a bunch of new devices isn't really required
to implement a usable set of policies.
1. To define your policies, add the following to your ``/etc/swift/swift.conf``
file::
file:
[storage-policy:0]
name = gold
aliases = yellow, orange
default = yes
.. code:: ini
[storage-policy:1]
name = silver
[storage-policy:0]
name = gold
aliases = yellow, orange
default = yes
See :doc:`overview_policies` for detailed information on ``swift.conf`` policy
options.
[storage-policy:1]
name = silver
See :doc:`overview_policies` for detailed information on ``swift.conf`` policy
options.
2. To create the object ring for the silver policy (index 1), add the following
to your ``bin/remakerings`` script and re-run it (your script may already have
these changes)::
these changes):
swift-ring-builder object-1.builder create 10 2 1
swift-ring-builder object-1.builder add r1z1-127.0.0.1:6210/sdb1 1
swift-ring-builder object-1.builder add r1z2-127.0.0.1:6220/sdb2 1
swift-ring-builder object-1.builder add r1z3-127.0.0.1:6230/sdb3 1
swift-ring-builder object-1.builder add r1z4-127.0.0.1:6240/sdb4 1
swift-ring-builder object-1.builder rebalance
.. code:: shell
Note that the reduced replication of the silver policy is only a function
of the replication parameter in the ``swift-ring-builder create`` command
and is not specified in ``/etc/swift/swift.conf``.
swift-ring-builder object-1.builder create 10 2 1
swift-ring-builder object-1.builder add r1z1-127.0.0.1:6210/sdb1 1
swift-ring-builder object-1.builder add r1z2-127.0.0.1:6220/sdb2 1
swift-ring-builder object-1.builder add r1z3-127.0.0.1:6230/sdb3 1
swift-ring-builder object-1.builder add r1z4-127.0.0.1:6240/sdb4 1
swift-ring-builder object-1.builder rebalance
Note that the reduced replication of the silver policy is only a function
of the replication parameter in the ``swift-ring-builder create`` command
and is not specified in ``/etc/swift/swift.conf``.
3. Copy ``etc/container-reconciler.conf-sample`` to
``/etc/swift/container-reconciler.conf`` and fix the user option::
``/etc/swift/container-reconciler.conf`` and fix the user option:
cp etc/container-reconciler.conf-sample /etc/swift/container-reconciler.conf
sed -i "s/# user.*/user = $USER/g" /etc/swift/container-reconciler.conf
.. code:: shell
cp etc/container-reconciler.conf-sample /etc/swift/container-reconciler.conf
sed -i "s/# user.*/user = $USER/g" /etc/swift/container-reconciler.conf
------------------
Using Policies
@ -68,82 +74,104 @@ Storage Policies effect placement of data in Swift.
1. We will be using the list_endpoints middleware to confirm object locations,
so enable that now in your ``proxy-server.conf`` file by adding it to the pipeline
and including the filter section as shown below (be sure to restart your proxy
after making these changes)::
after making these changes):
pipeline = catch_errors gatekeeper healthcheck proxy-logging cache bulk \
slo dlo ratelimit crossdomain list-endpoints tempurl tempauth staticweb \
container-quotas account-quotas proxy-logging proxy-server
.. code:: ini
[filter:list-endpoints]
use = egg:swift#list_endpoints
pipeline = catch_errors gatekeeper healthcheck proxy-logging cache bulk \
slo dlo ratelimit crossdomain list-endpoints tempurl tempauth staticweb \
container-quotas account-quotas proxy-logging proxy-server
2. Check to see that your policies are reported via /info::
[filter:list-endpoints]
use = egg:swift#list_endpoints
swift -A http://127.0.0.1:8080/auth/v1.0 -U test:tester -K testing info
2. Check to see that your policies are reported via /info:
You should see this: (only showing the policy output here)::
.. code:: shell
policies: [{'aliases': 'gold, yellow, orange', 'default': True,
'name': 'gold'}, {'aliases': 'silver', 'name': 'silver'}]
swift -A http://127.0.0.1:8080/auth/v1.0 -U test:tester -K testing info
You should see this: (only showing the policy output here):
.. code:: none
policies: [{'aliases': 'gold, yellow, orange', 'default': True,
'name': 'gold'}, {'aliases': 'silver', 'name': 'silver'}]
3. Now create a container without specifying a policy, it will use the
default, 'gold' and then put a test object in it (create the file ``file0.txt``
with your favorite editor with some content)::
with your favorite editor with some content):
curl -v -X PUT -H 'X-Auth-Token: <your auth token>' \
http://127.0.0.1:8080/v1/AUTH_test/myCont0
curl -X PUT -v -T file0.txt -H 'X-Auth-Token: <your auth token>' \
http://127.0.0.1:8080/v1/AUTH_test/myCont0/file0.txt
.. code:: shell
4. Now confirm placement of the object with the :ref:`list_endpoints` middleware::
curl -v -X PUT -H 'X-Auth-Token: <your auth token>' \
http://127.0.0.1:8080/v1/AUTH_test/myCont0
curl -X PUT -v -T file0.txt -H 'X-Auth-Token: <your auth token>' \
http://127.0.0.1:8080/v1/AUTH_test/myCont0/file0.txt
curl -X GET -v http://127.0.0.1:8080/endpoints/AUTH_test/myCont0/file0.txt
4. Now confirm placement of the object with the :ref:`list_endpoints` middleware:
You should see this: (note placement on expected devices)::
.. code:: shell
["http://127.0.0.1:6230/sdb3/761/AUTH_test/myCont0/file0.txt",
"http://127.0.0.1:6210/sdb1/761/AUTH_test/myCont0/file0.txt",
"http://127.0.0.1:6220/sdb2/761/AUTH_test/myCont0/file0.txt"]
curl -X GET -v http://127.0.0.1:8080/endpoints/AUTH_test/myCont0/file0.txt
5. Create a container using policy 'silver' and put a different file in it::
You should see this: (note placement on expected devices):
curl -v -X PUT -H 'X-Auth-Token: <your auth token>' -H \
"X-Storage-Policy: silver" \
http://127.0.0.1:8080/v1/AUTH_test/myCont1
curl -X PUT -v -T file1.txt -H 'X-Auth-Token: <your auth token>' \
http://127.0.0.1:8080/v1/AUTH_test/myCont1/
.. code:: json
6. Confirm placement of the object for policy 'silver'::
["http://127.0.0.1:6230/sdb3/761/AUTH_test/myCont0/file0.txt",
"http://127.0.0.1:6210/sdb1/761/AUTH_test/myCont0/file0.txt",
"http://127.0.0.1:6220/sdb2/761/AUTH_test/myCont0/file0.txt"]
curl -X GET -v http://127.0.0.1:8080/endpoints/AUTH_test/myCont1/file1.txt
5. Create a container using policy 'silver' and put a different file in it:
You should see this: (note placement on expected devices)::
.. code:: shell
["http://127.0.0.1:6210/sdb1/32/AUTH_test/myCont1/file1.txt",
"http://127.0.0.1:6240/sdb4/32/AUTH_test/myCont1/file1.txt"]
curl -v -X PUT -H 'X-Auth-Token: <your auth token>' -H \
"X-Storage-Policy: silver" \
http://127.0.0.1:8080/v1/AUTH_test/myCont1
curl -X PUT -v -T file1.txt -H 'X-Auth-Token: <your auth token>' \
http://127.0.0.1:8080/v1/AUTH_test/myCont1/
6. Confirm placement of the object for policy 'silver':
.. code:: shell
curl -X GET -v http://127.0.0.1:8080/endpoints/AUTH_test/myCont1/file1.txt
You should see this: (note placement on expected devices):
.. code:: json
["http://127.0.0.1:6210/sdb1/32/AUTH_test/myCont1/file1.txt",
"http://127.0.0.1:6240/sdb4/32/AUTH_test/myCont1/file1.txt"]
7. Confirm account information with HEAD, make sure that your container-updater
service is running and has executed once since you performed the PUTs or the
account database won't be updated yet::
account database won't be updated yet:
curl -i -X HEAD -H 'X-Auth-Token: <your auth token>' \
http://127.0.0.1:8080/v1/AUTH_test
.. code:: shell
You should see something like this (note that total and per policy stats
object sizes will vary)::
curl -i -X HEAD -H 'X-Auth-Token: <your auth token>' \
http://127.0.0.1:8080/v1/AUTH_test
HTTP/1.1 204 No Content
Content-Length: 0
X-Account-Object-Count: 2
X-Account-Bytes-Used: 174
X-Account-Container-Count: 2
X-Account-Storage-Policy-Gold-Object-Count: 1
X-Account-Storage-Policy-Gold-Bytes-Used: 84
X-Account-Storage-Policy-Silver-Object-Count: 1
X-Account-Storage-Policy-Silver-Bytes-Used: 90
X-Timestamp: 1397230339.71525
Content-Type: text/plain; charset=utf-8
Accept-Ranges: bytes
X-Trans-Id: tx96e7496b19bb44abb55a3-0053482c75
X-Openstack-Request-Id: tx96e7496b19bb44abb55a3-0053482c75
Date: Fri, 11 Apr 2014 17:55:01 GMT
You should see something like this (note that total and per policy stats
object sizes will vary):
.. code:: none
HTTP/1.1 204 No Content
Content-Length: 0
X-Account-Object-Count: 2
X-Account-Bytes-Used: 174
X-Account-Container-Count: 2
X-Account-Storage-Policy-Gold-Object-Count: 1
X-Account-Storage-Policy-Gold-Bytes-Used: 84
X-Account-Storage-Policy-Silver-Object-Count: 1
X-Account-Storage-Policy-Silver-Bytes-Used: 90
X-Timestamp: 1397230339.71525
Content-Type: text/plain; charset=utf-8
Accept-Ranges: bytes
X-Trans-Id: tx96e7496b19bb44abb55a3-0053482c75
X-Openstack-Request-Id: tx96e7496b19bb44abb55a3-0053482c75
Date: Fri, 11 Apr 2014 17:55:01 GMT

2
swift/common/middleware/crypto/decrypter.py
View File

@ -92,7 +92,7 @@ class BaseDecrypterContext(CryptoWSGIContext):
the value itself, otherwise return the value unmodified.
A value should either be a string that does not contain the ';'
character or should be of the form:
character or should be of the form::
<base64-encoded ciphertext>;swift_meta=<crypto meta>

8
swift/common/middleware/crypto/keymaster.py
View File

@ -208,10 +208,10 @@ class BaseKeyMaster(object):
This provides some basic helpers for:
- loading from a separate config path,
- deriving keys based on path, and
- installing a ``swift.callback.fetch_crypto_keys`` hook
in the request environment.
- loading from a separate config path,
- deriving keys based on path, and
- installing a ``swift.callback.fetch_crypto_keys`` hook
in the request environment.
Subclasses should define ``log_route``, ``keymaster_opts``, and
``keymaster_conf_section`` attributes, and implement the

2
swift/common/ring/builder.py
View File

@ -178,7 +178,7 @@ class RingBuilder(object):
@contextmanager
def debug(self):
"""
Temporarily enables debug logging, useful in tests, e.g.
Temporarily enables debug logging, useful in tests, e.g.::
with rb.debug():
rb.rebalance()

12
swift/common/utils.py
View File

@ -1285,7 +1285,7 @@ class Timestamp(object):
"""
Get an isoformat string representation of the 'normal' part of the
Timestamp with microsecond precision and no trailing timezone, for
example:
example::
1970-01-01T00:00:00.000000
@ -2518,12 +2518,12 @@ def get_hub():
Another note about epoll: it's hard to use when forking. epoll works
like so:
* create an epoll instance: efd = epoll_create(...)
* create an epoll instance: ``efd = epoll_create(...)``
* register file descriptors of interest with epoll_ctl(efd,
EPOLL_CTL_ADD, fd, ...)
* register file descriptors of interest with
``epoll_ctl(efd, EPOLL_CTL_ADD, fd, ...)``
* wait for events with epoll_wait(efd, ...)
* wait for events with ``epoll_wait(efd, ...)``
If you fork, you and all your child processes end up using the same
epoll instance, and everyone becomes confused. It is possible to use
@ -6437,7 +6437,7 @@ def make_db_file_path(db_path, epoch):
def get_db_files(db_path):
"""
Given the path to a db file, return a sorted list of all valid db files
that actually exist in that path's dir. A valid db filename has the form:
that actually exist in that path's dir. A valid db filename has the form::
<hash>[_<epoch>].db

28
swift/container/backend.py
View File

@ -322,20 +322,20 @@ class ContainerBroker(DatabaseBroker):
Note that this may involve multiple on-disk DB files if the container
becomes sharded:
* :attr:`_db_file` is the path to the legacy container DB name, i.e.
``<hash>.db``. This file should exist for an initialised broker that
has never been sharded, but will not exist once a container has been
sharded.
* :attr:`db_files` is a list of existing db files for the broker. This
list should have at least one entry for an initialised broker, and
should have two entries while a broker is in SHARDING state.
* :attr:`db_file` is the path to whichever db is currently authoritative
for the container. Depending on the container's state, this may not be
the same as the ``db_file`` argument given to :meth:`~__init__`, unless
``force_db_file`` is True in which case :attr:`db_file` is always equal
to the ``db_file`` argument given to :meth:`~__init__`.
* :attr:`pending_file` is always equal to :attr:`_db_file` extended with
``.pending``, i.e. ``<hash>.db.pending``.
* :attr:`_db_file` is the path to the legacy container DB name, i.e.
``<hash>.db``. This file should exist for an initialised broker that
has never been sharded, but will not exist once a container has been
sharded.
* :attr:`db_files` is a list of existing db files for the broker. This
list should have at least one entry for an initialised broker, and
should have two entries while a broker is in SHARDING state.
* :attr:`db_file` is the path to whichever db is currently authoritative
for the container. Depending on the container's state, this may not be
the same as the ``db_file`` argument given to :meth:`~__init__`, unless
``force_db_file`` is True in which case :attr:`db_file` is always equal
to the ``db_file`` argument given to :meth:`~__init__`.
* :attr:`pending_file` is always equal to :attr:`_db_file` extended with
``.pending``, i.e. ``<hash>.db.pending``.
"""
db_type = 'container'
db_contains_type = 'object'

62
swift/container/sharder.py
View File

@ -502,43 +502,43 @@ class CleavingContext(object):
Encapsulates metadata associated with the process of cleaving a retiring
DB. This metadata includes:
* ``ref``: The unique part of the key that is used when persisting a
serialized ``CleavingContext`` as sysmeta in the DB. The unique part of
the key is based off the DB id. This ensures that each context is
associated with a specific DB file. The unique part of the key is
included in the ``CleavingContext`` but should not be modified by any
caller.
* ``ref``: The unique part of the key that is used when persisting a
serialized ``CleavingContext`` as sysmeta in the DB. The unique part of
the key is based off the DB id. This ensures that each context is
associated with a specific DB file. The unique part of the key is
included in the ``CleavingContext`` but should not be modified by any
caller.
* ``cursor``: the upper bound of the last shard range to have been
cleaved from the retiring DB.
* ``cursor``: the upper bound of the last shard range to have been
cleaved from the retiring DB.
* ``max_row``: the retiring DB's max row; this is updated to the value of
the retiring DB's ``max_row`` every time a ``CleavingContext`` is
loaded for that DB, and may change during the process of cleaving the
DB.
* ``max_row``: the retiring DB's max row; this is updated to the value of
the retiring DB's ``max_row`` every time a ``CleavingContext`` is
loaded for that DB, and may change during the process of cleaving the
DB.
* ``cleave_to_row``: the value of ``max_row`` at the moment when cleaving
starts for the DB. When cleaving completes (i.e. the cleave cursor has
reached the upper bound of the cleaving namespace), ``cleave_to_row``
is compared to the current ``max_row``: if the two values are not equal
then rows have been added to the DB which may not have been cleaved, in
which case the ``CleavingContext`` is ``reset`` and cleaving is
re-started.
* ``cleave_to_row``: the value of ``max_row`` at the moment when cleaving
starts for the DB. When cleaving completes (i.e. the cleave cursor has
reached the upper bound of the cleaving namespace), ``cleave_to_row``
is compared to the current ``max_row``: if the two values are not equal
then rows have been added to the DB which may not have been cleaved, in
which case the ``CleavingContext`` is ``reset`` and cleaving is
re-started.
* ``last_cleave_to_row``: the minimum DB row from which cleaving should
select objects to cleave; this is initially set to None i.e. all rows
should be cleaved. If the ``CleavingContext`` is ``reset`` then the
``last_cleave_to_row`` is set to the current value of
``cleave_to_row``, which in turn is set to the current value of
``max_row`` by a subsequent call to ``start``. The repeated cleaving
therefore only selects objects in rows greater than the
``last_cleave_to_row``, rather than cleaving the whole DB again.
* ``last_cleave_to_row``: the minimum DB row from which cleaving should
select objects to cleave; this is initially set to None i.e. all rows
should be cleaved. If the ``CleavingContext`` is ``reset`` then the
``last_cleave_to_row`` is set to the current value of
``cleave_to_row``, which in turn is set to the current value of
``max_row`` by a subsequent call to ``start``. The repeated cleaving
therefore only selects objects in rows greater than the
``last_cleave_to_row``, rather than cleaving the whole DB again.
* ``ranges_done``: the number of shard ranges that have been cleaved from
the retiring DB.
* ``ranges_done``: the number of shard ranges that have been cleaved from
the retiring DB.
* ``ranges_todo``: the number of shard ranges that are yet to be
cleaved from the retiring DB.
* ``ranges_todo``: the number of shard ranges that are yet to be
cleaved from the retiring DB.
"""
def __init__(self, ref, cursor='', max_row=None, cleave_to_row=None,
last_cleave_to_row=None, cleaving_done=False,

38
swift/container/sync.py
View File

@ -96,28 +96,28 @@ class ContainerSync(Daemon):
An example may help. Assume replica count is 3 and perfectly matching
ROWIDs starting at 1.
First sync run, database has 6 rows:
First sync run, database has 6 rows:
* SyncPoint1 starts as -1.
* SyncPoint2 starts as -1.
* No rows between points, so no "all updates" rows.
* Six rows newer than SyncPoint1, so a third of the rows are sent
by node 1, another third by node 2, remaining third by node 3.
* SyncPoint1 is set as 6 (the newest ROWID known).
* SyncPoint2 is left as -1 since no "all updates" rows were synced.
* SyncPoint1 starts as -1.
* SyncPoint2 starts as -1.
* No rows between points, so no "all updates" rows.
* Six rows newer than SyncPoint1, so a third of the rows are sent
by node 1, another third by node 2, remaining third by node 3.
* SyncPoint1 is set as 6 (the newest ROWID known).
* SyncPoint2 is left as -1 since no "all updates" rows were synced.
Next sync run, database has 12 rows:
Next sync run, database has 12 rows:
* SyncPoint1 starts as 6.
* SyncPoint2 starts as -1.
* The rows between -1 and 6 all trigger updates (most of which
should short-circuit on the remote end as having already been
done).
* Six more rows newer than SyncPoint1, so a third of the rows are
sent by node 1, another third by node 2, remaining third by node
3.
* SyncPoint1 is set as 12 (the newest ROWID known).
* SyncPoint2 is set as 6 (the newest "all updates" ROWID).
* SyncPoint1 starts as 6.
* SyncPoint2 starts as -1.
* The rows between -1 and 6 all trigger updates (most of which
should short-circuit on the remote end as having already been
done).
* Six more rows newer than SyncPoint1, so a third of the rows are
sent by node 1, another third by node 2, remaining third by node
3.
* SyncPoint1 is set as 12 (the newest ROWID known).
* SyncPoint2 is set as 6 (the newest "all updates" ROWID).
In this way, under normal circumstances each node sends its share of
updates each run and just sends a batch of older updates to ensure nothing

68
swift/obj/ssync_receiver.py
View File

@ -116,17 +116,17 @@ class Receiver(object):
The general process inside an SSYNC request is:
1. Initialize the request: Basic request validation, mount check,
acquire semaphore lock, etc..
1. Initialize the request: Basic request validation, mount check,
acquire semaphore lock, etc..
2. Missing check: Sender sends the hashes and timestamps of
the object information it can send, receiver sends back
the hashes it wants (doesn't have or has an older
timestamp).
2. Missing check: Sender sends the hashes and timestamps of
the object information it can send, receiver sends back
the hashes it wants (doesn't have or has an older
timestamp).
3. Updates: Sender sends the object information requested.
3. Updates: Sender sends the object information requested.
4. Close down: Release semaphore lock, etc.
4. Close down: Release semaphore lock, etc.
"""
def __init__(self, app, request):
@ -346,29 +346,29 @@ class Receiver(object):
The process is generally:
1. Sender sends `:MISSING_CHECK: START` and begins
sending `hash timestamp` lines.
1. Sender sends ``:MISSING_CHECK: START`` and begins
sending `hash timestamp` lines.
2. Receiver gets `:MISSING_CHECK: START` and begins
reading the `hash timestamp` lines, collecting the
hashes of those it desires.
2. Receiver gets ``:MISSING_CHECK: START`` and begins
reading the `hash timestamp` lines, collecting the
hashes of those it desires.
3. Sender sends `:MISSING_CHECK: END`.
3. Sender sends ``:MISSING_CHECK: END``.
4. Receiver gets `:MISSING_CHECK: END`, responds with
`:MISSING_CHECK: START`, followed by the list of
<wanted_hash> specifiers it collected as being wanted
(one per line), `:MISSING_CHECK: END`, and flushes any
buffers.
4. Receiver gets ``:MISSING_CHECK: END``, responds with
``:MISSING_CHECK: START``, followed by the list of
<wanted_hash> specifiers it collected as being wanted
(one per line), ``:MISSING_CHECK: END``, and flushes any
buffers.
Each <wanted_hash> specifier has the form <hash>[ <parts>] where
<parts> is a string containing characters 'd' and/or 'm'
indicating that only data or meta part of object respectively is
required to be sync'd.
Each <wanted_hash> specifier has the form <hash>[ <parts>] where
<parts> is a string containing characters 'd' and/or 'm'
indicating that only data or meta part of object respectively is
required to be sync'd.
5. Sender gets `:MISSING_CHECK: START` and reads the list
of hashes desired by the receiver until reading
`:MISSING_CHECK: END`.
5. Sender gets ``:MISSING_CHECK: START`` and reads the list
of hashes desired by the receiver until reading
``:MISSING_CHECK: END``.
The collection and then response is so the sender doesn't
have to read while it writes to ensure network buffers don't
@ -413,18 +413,18 @@ class Receiver(object):
The process is generally:
1. Sender sends `:UPDATES: START` and begins sending the
PUT and DELETE subrequests.
1. Sender sends ``:UPDATES: START`` and begins sending the
PUT and DELETE subrequests.
2. Receiver gets `:UPDATES: START` and begins routing the
subrequests to the object server.
2. Receiver gets ``:UPDATES: START`` and begins routing the
subrequests to the object server.
3. Sender sends `:UPDATES: END`.
3. Sender sends ``:UPDATES: END``.
4. Receiver gets `:UPDATES: END` and sends `:UPDATES:
START` and `:UPDATES: END` (assuming no errors).
4. Receiver gets ``:UPDATES: END`` and sends ``:UPDATES:
START`` and ``:UPDATES: END`` (assuming no errors).
5. Sender gets `:UPDATES: START` and `:UPDATES: END`.
5. Sender gets ``:UPDATES: START`` and ``:UPDATES: END``.
If too many subrequests fail, as configured by
replication_failure_threshold and replication_failure_ratio,

22
swift/obj/updater.py
View File

@ -86,15 +86,15 @@ class BucketizedUpdateSkippingLimiter(object):
The iterator increments stats as follows:
* The `deferrals` stat is incremented for each update that is
rate-limited. Note that a individual update is rate-limited at most
once.
* The `skips` stat is incremented for each rate-limited update that is
not eventually yielded. This includes updates that are evicted from the
deferral queue and all updates that remain in the deferral queue when
``drain_until`` time is reached and the iterator terminates.
* The `drains` stat is incremented for each rate-limited update that is
eventually yielded.
* The `deferrals` stat is incremented for each update that is
rate-limited. Note that a individual update is rate-limited at most
once.
* The `skips` stat is incremented for each rate-limited update that is
not eventually yielded. This includes updates that are evicted from the
deferral queue and all updates that remain in the deferral queue when
``drain_until`` time is reached and the iterator terminates.
* The `drains` stat is incremented for each rate-limited update that is
eventually yielded.
Consequently, when this iterator terminates, the sum of `skips` and
`drains` is equal to the number of `deferrals`.
@ -219,12 +219,12 @@ class SweepStats(object):
"""
Stats bucket for an update sweep
A measure of the rate at which updates are being rate-limited is:
A measure of the rate at which updates are being rate-limited is::
deferrals / (deferrals + successes + failures - drains)
A measure of the rate at which updates are not being sent during a sweep
is:
is::
skips / (skips + successes + failures)
"""