** Changed in: oslo.db
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1283987
Title:
Query Deadlock when creating >200 servers at once in sqlalchemy
Status in OpenStack Compute (Nova):
In Progress
Status in Oslo Database library:
Fix Released
Bug description:
Query Deadlock when creating >200 servers at once in sqlalchemy.
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This bug occurred when I test this bug:
https://bugs.launchpad.net/nova/+bug/1270725
The original info is logged here:
http://paste.openstack.org/show/61534/
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After checking the error-log, we can notice that the deadlock function
is 'all()' in sqlalchemy framework.
Previously, we use '@retry_on_dead_lock' function to retry requests when
deadlock occurs.
But it's only available for session deadlock(query/flush/execute). It
doesn't cover some 'Query' actions in sqlalchemy.
So, we need to add the same protction for 'all()' in sqlalchemy.
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