[HBASE-25315] Follow-on tasks that came of "HBASE-18070 Enable memstore replication for meta replica"

• Type: Umbrella
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: meta replicas
• Assignee: Unassigned
• Reporter: Michael Stack
• Created: 20/Nov/20 23:10
• Updated: 20/Nov/20 23:11

Description

The HBASE-18070 Enable memstore replication for meta replica
turned up follow-ons: tests, doc, guardrails and enhancements. Let me give them their own issue so they do not crowd the original and so I can resolve the original against the version that carries the first implementation of the enhancement (Want to avoid the alternative of an issue that stays open for ever).

Issue Links

• is related to: HBASE-18070 Enable memstore replication for meta replica

Sub-Tasks

• Follow-on: defend against read replicas being enabled for server-side clients: Open
• Followup jira to address the client handling issue when chaning from meta replica to non-meta-replica at the server side.: Resolved
• Followup jira to create single thread ScheduledExecutorService in AsyncConnImpl, and schedule all these periodic tasks: Open
• Followup jira to encap all meta replica mode/selector processing into CatalogReplicaModeManager: Open
• Add integration test for meta replica load balance mode: Open
• Enhance balancer to make sure no meta primary/replica regions are going to be assigned to one same region server.: Open
• Create a ReplicationEndPoint for meta/root replica replication.: In Progress
• HBASE-18070 makes for NPEs in some hbase-backup tests on master: Open
• Enhance PerformanceEvaluation to profile meta replica performance.: Resolved
• Avoid the failed meta replica region temporarily in Load Balance mode: Reopened