openstack/mistral
Code Issues Proposed changes

Release note for workflow environment optimizations

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Change-Id: Ieff4887384a4f8fa0eb52a6255f3e4402dbf1d8e
Related-Bug: #1757966
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Renat Akhmerov 2018-04-27 20:00:36 +07:00
parent f2a9bd45ab
commit cb1cabbfe6
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releasenotes/notes/workflow_environment_optimizations-deb8868df3f0dc36.yaml Normal file
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---
fixes:
- Mistral was storing, in fact, two copies of a workflow environment,
one in workflow parameters (the 'params' field) and another one in
a context (the 'context' field). Now it's stored only in workflow
parameters. It saves space in DB and increases performance in case
of big workflow environments.
- Mistral was copying a workflow environment into all of their sub
workflows. In case of a big workflow environment and a big number
of sub workflows it caused serious problems, used additional space
in DB and used a lot of RAM (e.g. when the 'on-success' clause has
a lot of tasks where each one of them is a subworkflow). Now it is
fixed by evaluating a workflow environment through the root execution
reference.