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Message #24741
[Bug 1387401] Re: token_flush can hang if lots of tokens
** Also affects: keystone/juno
Importance: Undecided
Status: New
** Changed in: keystone/juno
Status: New => In Progress
** Changed in: keystone/juno
Importance: Undecided => Medium
** Changed in: keystone/juno
Assignee: (unassigned) => Brant Knudson (blk-u)
** Changed in: keystone/juno
Milestone: None => 2014.2.1
** Tags removed: juno-backport-potential
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https://bugs.launchpad.net/bugs/1387401
Title:
token_flush can hang if lots of tokens
Status in OpenStack Identity (Keystone):
Fix Committed
Status in Keystone juno series:
In Progress
Bug description:
If you've got a system that can generate lots of tokens, token_flush can hang. For DB2, this happens if you create > 100 tokens in a second (for mysql it's 1000 tokens in a second). The query to get the time to delete returns the 100th timestamp which is the same as the min timestamp, and then it goes to delete < min timestamp and none match, so none are deleted, then it gets stuck in a loop since the function always returns the min timestamp.
This could be fixed easily by using <= rather than < for the deletion
comparison.
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References