Draft PR for changes related to PA RTF merging

[atharvasharma61]

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Check List

• [ ] Backport Labels added.
• [ ] New functionality includes testing.
  • [ ] All tests pass
• [ ] New functionality has been documented.
  • [ ] New functionality has javadoc added
• [ ] Commits are signed per the DCO using --signoff

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[atharvasharma61]

https://pastecode.io/s/9bksb3ak Heap metrics

[ansjcy]

Hi @atharvasharma61! This looks like an interesting change, do we have any rfc/doc to provide more context?

[Gaganjuneja]

Overall looks good, please address the open comments and build failures.

[Gaganjuneja]

I am hoping there are changes in performance-analyzer-commons package also in class ScheduledMetricCollectorsExecutor. Please attache that PR also here.

[atharvasharma61]

One more thing to call-out: We need to enable delta temporality in Opensearch Otel. @Gaganjuneja

[Gaganjuneja]

Please take a look at build failures.

[atharvasharma61]

Please take a look at build failures.

Dependent on PRs: https://github.com/opensearch-project/performance-analyzer/pull/657 and https://github.com/opensearch-project/performance-analyzer-commons/pull/74

[opensearch-trigger-bot[bot]]

The backport to 2.x failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-2.x 2.x
# Navigate to the new working tree
cd .worktrees/backport-2.x
# Create a new branch
git switch --create backport/backport-651-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 17611035b0519b96de809da2ccb07ea9b4107ede
# Push it to GitHub
git push --set-upstream origin backport/backport-651-to-2.x
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-651-to-2.x.