[feature] Cross-Cluster Replication (CCR)

[tkykenmt]

Overview

• Version: v3.0.0
• Category: feature
• Repositories: index-management, cross-cluster-replication, common
• PRs: 3

Pull Requests

| PR | Title | Category | Repository |\n|----|-------|----------|------------|\n| #667 | Adding replication (CCR) plugin interface and classes to common-utils | feature | common |
| #1198 | Adding unfollow action in ism to invoke stop replication for ccr | feature | index-management |
| #1496 | Update CCR with gradle 8.10.2 and support JDK23 | bugfix | cross-cluster-replication |

Tasks

• Investigate PRs
• Create release report: docs/releases/v3.0.0/cross-cluster-replication-ccr.md
• Update feature report: docs/features/cross-cluster-replication-ccr.md

[tkykenmt]

Investigation Complete

Reports Created

• Release report: docs/releases/v3.0.0/features/cross-cluster-replication/cross-cluster-replication-ccr.md
• Feature report: docs/features/cross-cluster-replication/cross-cluster-replication.md

Summary

OpenSearch v3.0.0 introduces ISM-CCR integration, enabling Index State Management (ISM) policies to manage Cross-Cluster Replication (CCR) follower indices through a new stop_replication action.

Key Changes in v3.0.0

• ISM-CCR Integration: New stop_replication action in ISM that invokes CCR's stop-replication API
• Common Utils Interface: Added ReplicationPluginInterface and StopIndexReplicationRequest for cross-plugin communication
• New ISM Components: StopReplicationAction, AttemptStopReplicationStep, ValidateStopReplication
• Build Updates: CCR plugin updated with Gradle 8.10.2 and JDK23 support

Resources Used

• PR: #667 - Adding replication plugin interface
• PR: #1198 - Adding unfollow action in ISM
• PR: #1496 - Gradle 8.10.2 and JDK23 support
• Issue: #726 - Original feature request
• Docs: https://docs.opensearch.org/3.0/tuning-your-cluster/replication-plugin/index/