** Changed in: tripleo
Status: Triaged => Fix Released
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https://bugs.launchpad.net/bugs/1184484
Title:
Quantum default settings will cause deadlocks due to overflow of
sqlalchemy_pool
Status in OpenStack Neutron (virtual network service):
Fix Committed
Status in tripleo - openstack on openstack:
Fix Released
Bug description:
quantum-server by default will create an sqlalchemy_pool of 5
connections. This will start to fail as more and more data and compute
nodes are added. Raising it to 40 seems to stop the problem, it may
need to go higher. Raising it to 20 still results in:
TimeoutError: QueuePool limit of size 20 overflow 10 reached,
connection timed out, timeout 30
Raising it to 40 seems to have restored responsiveness. I suspect it
may be too low as the number of clients increases.
[DATABASE]
sqlalchemy_pool_size = 40
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