[Segment Replication] Fix OngoingSegmentReplications to key by allocation ID instead of DiscoveryNode.

[mch2]

Signed-off-by: Marc Handalian [email protected]

Description

This change fixes segrep to work with multiple shards per node by keying ongoing replications on allocation ID. This also updates cancel methods to ensure state is properly cleared on shard cancel.

Issues Resolved

#4129.

Check List

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

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license. For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[github-actions[bot]]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE :x:
• URL: https://build.ci.opensearch.org/job/gradle-check/1644/
• CommitID: c95112f2c471c5e2e77ba01c90442da74425a5b0

[github-actions[bot]]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE :x:
• URL: https://build.ci.opensearch.org/job/gradle-check/1645/
• CommitID: 3092e172ae1728f84e036d647c3b71538e33304b

[dreamer-89]

@mch2 1645 is failing with spotlessCheck.

[github-actions[bot]]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS :white_check_mark:
• URL: https://build.ci.opensearch.org/job/gradle-check/1646/
• CommitID: 6548f9b9614160cb1f193f9724d066913098dc6f