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docs: add node-join-leave report for v2.18.0#737

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tkykenmt merged 1 commit intomainfrom
docs/node-join-leave-v2.18.0
Jan 9, 2026
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docs: add node-join-leave report for v2.18.0#737
tkykenmt merged 1 commit intomainfrom
docs/node-join-leave-v2.18.0

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@tkykenmt tkykenmt commented Jan 9, 2026

Summary

This PR adds documentation for the Node Join/Leave race condition fix in OpenSearch v2.18.0.

Reports Created

  • Release report: docs/releases/v2.18.0/features/opensearch/node-join-leave.md
  • Feature report: docs/features/opensearch/node-join-leave.md

Key Changes in v2.18.0

  • Fixed race condition in node-join/node-left loop that could prevent nodes from rejoining the cluster indefinitely
  • Introduced pending disconnection tracking mechanism in ClusterConnectionManager
  • Join requests from nodes with ongoing node-left tasks are now rejected until the task completes

Resources Used

Closes #655

@tkykenmt tkykenmt merged commit 6ec0ba5 into main Jan 9, 2026
@tkykenmt tkykenmt deleted the docs/node-join-leave-v2.18.0 branch January 9, 2026 23:24
@tkykenmt tkykenmt mentioned this pull request Apr 10, 2026
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