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  1. HBase
  2. HBASE-4429

Provide synchronous balanceSwitch()

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Details

    • Task
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.94.0
    • None
    • None
    • Reviewed
    • Hide
      synchronousBalanceSwitch() has been added to HMaster.
      It waits until current balance() call, if outstanding, to return.
      Show
      synchronousBalanceSwitch() has been added to HMaster. It waits until current balance() call, if outstanding, to return.

    Description

      Currently balanceSwitch() doesn't guarantee that balancer isn't running upon return.
      During code review of HBASE-4213, we found that synchronous behavior for turning off balancer is desired.
      We can add blockingBalanceSwitch() to HMasterInterface upon whose return balancer is guaranteed not running.

      Attachments

        1. 4429.txt
          3 kB
          Ted Yu

        Issue Links

          is depended upon by

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-4213 Support for fault tolerant, instant schema updates with out master's intervention (i.e with out enable/disable and bulk assign/unassign) through ZK.

          • Major - Major loss of function.
          • Closed

          Activity

            People

              yuzhihong@gmail.com Ted Yu
              yuzhihong@gmail.com Ted Yu
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                Created:
                Updated:
                Resolved: