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  1. HBase
  2. HBASE-18070

Enable memstore replication for meta replica

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Details

    • New Feature
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • None
    • 3.0.0-alpha-1, 2.4.0
    • None
    • Reviewed
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      "Async WAL Replication" [1] was added by HBASE-11183 "Timeline Consistent region replicas - Phase 2 design" but only for user-space tables. This feature adds "Async WAL Replication" for the hbase:meta table. It also adds a client 'LoadBalance' mode that has reads go to replicas first and to the primary only on fail so as to shed read load from the primary to alleviate *hotspotting* on the hbase:meta Region.

      Configuration is as it was for the user-space 'Async WAL Replication'. See [2] and [3] for details on how to enable.

      1. http://hbase.apache.org/book.html#async.wal.replication
      2. http://hbase.apache.org/book.html#async.wal.replication.meta
      3. http://hbase.apache.org/book.html#_async_wal_replication_for_meta_table_as_of_hbase_2_4_0
      Show
      "Async WAL Replication" [1] was added by HBASE-11183 "Timeline Consistent region replicas - Phase 2 design" but only for user-space tables. This feature adds "Async WAL Replication" for the hbase:meta table. It also adds a client 'LoadBalance' mode that has reads go to replicas first and to the primary only on fail so as to shed read load from the primary to alleviate *hotspotting* on the hbase:meta Region. Configuration is as it was for the user-space 'Async WAL Replication'. See [2] and [3] for details on how to enable. 1. http://hbase.apache.org/book.html#async.wal.replication 2. http://hbase.apache.org/book.html#async.wal.replication.meta 3. http://hbase.apache.org/book.html#_async_wal_replication_for_meta_table_as_of_hbase_2_4_0

    Description

      Based on the current doc, memstore replication is not enabled for meta replica. Memstore replication will be a good improvement for meta replica. Create jira to track this effort (feasibility, design, implementation, etc).

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            huaxiangsun Huaxiang Sun
            huaxiang Hua Xiang
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