[8.x] Fix PolicyStepsRegistry cache concurrency issue (#126840)
#126913
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
The following order of events was possible: - An ILM policy update cleared `cachedSteps` - ILM retrieves the step definition for an index, this populates `cachedSteps` with the outdated policy - The updated policy is put in `lifecyclePolicyMap` Any subsequent cache retrievals will see the old step definition. By clearing `cachedSteps` _after_ we update `lifecyclePolicyMap`, we ensure eventual consistency between the policy and the cache. Fixes elastic#118406 (cherry picked from commit 5383f0f) # Conflicts: # muted-tests.yml
nielsbauman
added
auto-merge-without-approval
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Backport
This will backport the following commits from
mainto8.x:PolicyStepsRegistrycache concurrency issue (#126840)Questions ?
Please refer to the Backport tool documentation