Uploaded image for project: 'HBase'
  1. HBase
  2. HBASE-18070

Enable memstore replication for meta replica

    XMLWordPrintableJSON

    Details

    • Type: New Feature
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.0.0-alpha-1, 2.4.0
    • Component/s: None
    • Labels:
    • Hadoop Flags:
      Reviewed
    • Release Note:
      Hide
      "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).

        Attachments

          Issue Links

          is broken by

          New Feature - A new feature of the product, which has yet to be developed. HBASE-15867 Move HBase replication tracking from ZooKeeper to HBase

          • Major - Major loss of function.
          • Open
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-25272 Support scan on a specific replica

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

          Umbrella - An overarching type made of sub-tasks HBASE-25099 Change meta replica count by altering meta table descriptor

          • Major - Major loss of function.
          • Resolved
          relates to

          Sub-task - The sub-task of the issue HBASE-11183 Timeline Consistent region replicas - Phase 2 design

          • Major - Major loss of function.
          • Resolved

          New Feature - A new feature of the product, which has yet to be developed. HBASE-10070 HBase read high-availability using timeline-consistent region replicas

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-25283 Undo meta replica specialization inside of the region replica framework

          • Major - Major loss of function.
          • Open

          Umbrella - An overarching type made of sub-tasks HBASE-25315 Follow-on tasks that came of "HBASE-18070 Enable memstore replication for meta replica"

          • Major - Major loss of function.
          • Open
          links to

          Web Link Design

          Web Link GitHub Pull Request #2643

            Activity

              People

              • Assignee:
                huaxiangsun Huaxiang Sun
                Reporter:
                huaxiang Hua Xiang
              • Votes:
                0 Vote for this issue
                Watchers:
                21 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: