OpenStack Identity (Keystone)
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Lance Bragstad 5b7d4c80d4 Retry update_user when sqlalchemy raises StaleDataErrors
Keystone's update_user() method in the SQL driver processes a lot of
information about how to update users. This includes evaluating password
logic and authentication attempts for PSI-DSS. This logic is evaluated
after keystone pulls the user record from SQL and before it exits the
context manager, which performs the write.

When multiple clients are all updating the same user reference, it's
more likely they will see an HTTP 500 because of race conditions exiting
the context manager. The HTTP 500 is due to stale data when updating
password expiration for old passwords, which happens when setting a new
password for a user.

This commit attempts to handle that case more gracefully than throwing a
500 by detecting StaleDataErrors from sqlalchemy and retrying.  The
identity sql backend will retry the request for clients that have
stale data change from underneath them.

Change-Id: I75590c20e90170ed862f46f0de7d61c7810b5c90
Closes-Bug: 1885753
(cherry picked from commit ceae3566e8)
(cherry picked from commit f47e635b80)
2021-03-29 19:19:42 +00:00
api-ref/source Improve the update description for limits in api-ref 2020-08-13 15:50:49 +05:30
config-generator Move policy generator config to config-generator/ 2017-04-21 21:47:32 +00:00
devstack Merge "Run federation jobs on Ubuntu Focal" 2020-07-01 19:20:48 +00:00
doc Merge "Support regexes in whitelists/blacklists" 2020-07-16 20:03:47 +00:00
etc Remove policy.v3cloudsample.json 2019-10-02 20:26:05 +00:00
examples/pki Remove support for PKI and PKIz tokens 2016-11-01 22:05:01 +00:00
httpd Remove admin interface in sample Apache file 2018-03-24 12:56:02 +01:00
keystone Retry update_user when sqlalchemy raises StaleDataErrors 2021-03-29 19:19:42 +00:00
keystone_tempest_plugin Replace git.openstack.org URLs with opendev.org URLs 2019-04-24 11:51:00 +08:00
rally-jobs fix rally docs url 2018-05-21 16:24:51 +08:00
releasenotes Retry update_user when sqlalchemy raises StaleDataErrors 2021-03-29 19:19:42 +00:00
tools Fix user creation with GRANT in MySQL 8.0(Ubuntu Focal) 2020-08-17 13:37:48 +05:30
.coveragerc Change ignore-errors to ignore_errors 2015-09-21 14:27:58 +00:00
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CONTRIBUTING.rst Use https for docs.openstack.org references 2017-01-30 16:05:08 -08:00
HACKING.rst Merge "Update links in keystone" 2017-10-06 16:10:56 +00:00
LICENSE Added Apache 2.0 License information. 2012-02-15 17:48:33 -08:00
README.rst Merge "Add Source links to readme" 2019-12-17 08:52:57 +00:00
babel.cfg setting up babel for i18n work 2012-06-21 18:03:09 -07:00
bindep.txt Fix bindep for SUSE 2019-02-14 16:50:33 +01:00
lower-constraints.txt [goal] Migrate testing to ubuntu focal 2020-09-16 15:33:44 -05:00
reno.yaml Tell reno to ignore the kilo branch 2020-02-21 13:51:02 -05:00
requirements.txt [goal] Migrate testing to ubuntu focal 2020-09-16 15:33:44 -05:00
setup.cfg Cleanup py27 support 2020-04-08 08:37:30 +02:00
setup.py Cleanup py27 support 2020-04-08 08:37:30 +02:00
test-requirements.txt [goal] Migrate testing to ubuntu focal 2020-09-16 15:33:44 -05:00
tox.ini Update TOX_CONSTRAINTS_FILE for stable/victoria 2021-01-08 16:11:29 +00:00

README.rst

OpenStack Keystone

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OpenStack Keystone provides authentication, authorization and service discovery mechanisms via HTTP primarily for use by projects in the OpenStack family. It is most commonly deployed as an HTTP interface to existing identity systems, such as LDAP.

Developer documentation, the source of which is in doc/source/, is published at:

https://docs.openstack.org/keystone/latest

The API reference and documentation are available at:

https://docs.openstack.org/api-ref/identity

The canonical client library is available at:

https://opendev.org/openstack/python-keystoneclient

Documentation for cloud administrators is available at:

https://docs.openstack.org/

The source of documentation for cloud administrators is available at:

https://opendev.org/openstack/openstack-manuals

Information about our team meeting is available at:

https://wiki.openstack.org/wiki/Meetings/KeystoneMeeting

Release notes is available at:

https://docs.openstack.org/releasenotes/keystone

Bugs and feature requests are tracked on Launchpad at:

https://bugs.launchpad.net/keystone

Future design work is tracked at:

https://specs.openstack.org/openstack/keystone-specs

Contributors are encouraged to join IRC (#openstack-keystone on freenode):

https://wiki.openstack.org/wiki/IRC

Source for the project:

https://opendev.org/openstack/keystone

For information on contributing to Keystone, see CONTRIBUTING.rst.