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  1. HBase
  2. HBASE-15549 Undo HMaster carrying regions in master branch as default
  3. HBASE-25290

Remove table on master related code in balancer implementation

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    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.0.0-alpha-1
    • Component/s: Balancer, master
    • Labels:
      None
    • Hadoop Flags:
      Incompatible change, Reviewed
    • Release Note:
      Hide
      Removed the deprecated configs 'hbase.balancer.tablesOnMaster' and 'hbase.balancer.tablesOnMaster.systemTablesOnly', which means in 3.0.0 release, master can not carry regions any more.
      According to the compatibility guide, we should keep this till 4.0.0, but since it never works well, we decided to remove in 3.0.0 release.
      Notice that, when maintenance mode is on, HMaster could still carry system regions. This is the only exception.
      Show
      Removed the deprecated configs 'hbase.balancer.tablesOnMaster' and 'hbase.balancer.tablesOnMaster.systemTablesOnly', which means in 3.0.0 release, master can not carry regions any more. According to the compatibility guide, we should keep this till 4.0.0, but since it never works well, we decided to remove in 3.0.0 release. Notice that, when maintenance mode is on, HMaster could still carry system regions. This is the only exception.

      Description

      This could be a start of the HBASE-15549 feature branch.

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            • Assignee:
              zhangduo Duo Zhang
              Reporter:
              zhangduo Duo Zhang

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                Updated:
                Resolved:

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