Comment 0 for bug 1886563

Brief Description
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openstack-armada-app helm plugin dbapi calls scale linearly to the number of worker nodes, which results in very-poor performance when using a large number of nodes. This should be reduced to use a constant number of dbapi calls through optimization and caching.

Severity
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Provide the severity of the defect.
Major: blocks using large system

Steps to Reproduce
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Install OpenStack on system with 20 worker nodes
Attempt to lock host.

Expected Behavior
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evaluate_app_apply finishes in less than 60 seconds

Actual Behavior
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lock fails because evaluate_app_reapply takes longer than 60 seconds

Reproducibility
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Reproducible

System Configuration
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large (20-worker) system

Last Pass
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unknown

Workaround
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Increase rpc_response_timeout