openstack/cinder
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Merge "Remove unsupported options from cinder-manage quota command"

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Zuul 2023-02-17 20:53:51 +00:00 committed by Gerrit Code Review
commit 7fa35fe17c
1 changed files with 4 additions and 19 deletions
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23
doc/source/cli/cinder-manage.rst
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@ -59,7 +59,7 @@ allowing a finer control of when and what quotas are fixed.
**Checking if quotas and reservations are correct.**
``cinder-manage quota check [-h] [--project-id PROJECT_ID] [--use-locks]``
``cinder-manage quota check [-h] [--project-id PROJECT_ID]``
Accepted arguments are:
@ -68,29 +68,19 @@ Accepted arguments are:
--project-id PROJECT_ID
The ID of the project where we want to sync the quotas
(defaults to all projects).
--use-locks For precise results tables in the DB need to be
locked.
This command checks quotas and reservations, for a specific project (passing
``--project-id``) or for all projects, to see if they are out of sync.
The check will also look for duplicated entries.
By default it runs in the least accurate mode (where races have a higher
chance of happening) to minimize the impact on running cinder services. This
means that false errors are more likely to be reported due to race conditions
when Cinder services are running.
Accurate mode is also supported, but it will lock many tables (affecting all
tenants) and is not recommended with services that are being used.
One way to use this action in combination with the sync action is to run the
check for all projects, take note of those that are out of sync, and the sync
them one by one at intervals to allow cinder to operate semi-normally.
**Fixing quotas and reservations**
``cinder-manage quota sync [-h] [--project-id PROJECT_ID] [--no-locks]``
``cinder-manage quota sync [-h] [--project-id PROJECT_ID]``
Accepted arguments are:
@ -99,19 +89,14 @@ Accepted arguments are:
--project-id PROJECT_ID
The ID of the project where we want to sync the quotas
(defaults to all projects).
--no-locks For less precise results, but also less intrusive.
This command refreshes existing quota usage and reservation count for a
specific project or for all projects.
The refresh will also remove duplicated entries.
This operation is best executed when Cinder is not running, as it requires
locking many tables (affecting all tenants) to make sure that then sync is
accurate.
If accuracy is not our top priority, or we know that a specific project is not
in use, we can disable the locking.
This operation is best executed when Cinder is not running, but it can
be run with cinder services running as well.
A different transaction is used for each project's quota sync, so an action
failure will only rollback the current project's changes.