6998d804ff
Update the doc link brought by the swift doc migration. Although we had some effort to fix these before, it still left lots of bad doc link, I separate these changes into 3 patches aim to fix all of these, this is the 1st patch for doc/manpages. Change-Id: Ib49696706e61bbd36ae56b15b1d94aa4ce84531c
79 lines
2.5 KiB
Groff
79 lines
2.5 KiB
Groff
.\"
|
||
.\" Author: Joao Marcelo Martins <marcelo.martins@rackspace.com> or <btorch@gmail.com>
|
||
.\" Copyright (c) 2010-2012 OpenStack Foundation.
|
||
.\"
|
||
.\" Licensed under the Apache License, Version 2.0 (the "License");
|
||
.\" you may not use this file except in compliance with the License.
|
||
.\" You may obtain a copy of the License at
|
||
.\"
|
||
.\" http://www.apache.org/licenses/LICENSE-2.0
|
||
.\"
|
||
.\" Unless required by applicable law or agreed to in writing, software
|
||
.\" distributed under the License is distributed on an "AS IS" BASIS,
|
||
.\" WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||
.\" implied.
|
||
.\" See the License for the specific language governing permissions and
|
||
.\" limitations under the License.
|
||
.\"
|
||
.TH swift-object-updater 1 "8/26/2011" "Linux" "OpenStack Swift"
|
||
|
||
.SH NAME
|
||
.LP
|
||
.B swift-object-updater
|
||
\- OpenStack Swift object updater
|
||
|
||
.SH SYNOPSIS
|
||
.LP
|
||
.B swift-object-updater
|
||
[CONFIG] [-h|--help] [-v|--verbose] [-o|--once]
|
||
|
||
.SH DESCRIPTION
|
||
.PP
|
||
The object updater is responsible for updating object information in container listings.
|
||
It will check to see if there are any locally queued updates on the filesystem of each
|
||
devices, what is also known as async pending file(s), walk each one and update the
|
||
container listing.
|
||
|
||
For example, suppose a container server is under load and a new object is put
|
||
into the system. The object will be immediately available for reads as soon as
|
||
the proxy server responds to the client with success. However, the object
|
||
server has not been able to update the object listing in the container server.
|
||
Therefore, the update would be queued locally for a later update. Container listings,
|
||
therefore, may not immediately contain the object. This is where an eventual consistency
|
||
window will most likely come in to play.
|
||
|
||
In practice, the consistency window is only as large as the frequency at which
|
||
the updater runs and may not even be noticed as the proxy server will route
|
||
listing requests to the first container server which responds. The server under
|
||
load may not be the one that serves subsequent listing requests – one of the other
|
||
two replicas may handle the listing.
|
||
|
||
The options are as follows:
|
||
|
||
.RS 4
|
||
.PD 0
|
||
.IP "-v"
|
||
.IP "--verbose"
|
||
.RS 4
|
||
.IP "log to console"
|
||
.RE
|
||
.IP "-o"
|
||
.IP "--once"
|
||
.RS 4
|
||
.IP "only run one pass of daemon"
|
||
.RE
|
||
.PD
|
||
.RE
|
||
|
||
|
||
.SH DOCUMENTATION
|
||
.LP
|
||
More in depth documentation in regards to
|
||
.BI swift-object-updater
|
||
and also about OpenStack Swift as a whole can be found at
|
||
.BI https://docs.openstack.org/swift/latest/
|
||
|
||
|
||
.SH "SEE ALSO"
|
||
.BR object-server.conf(5)
|