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  1. HBase
  2. HBASE-23659

BaseLoadBalancer#wouldLowerAvailability should consider region replicas

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 3.0.0-alpha-1, 2.3.0, 2.2.3
    • None
    • None

    Description

      Found this issue when try to fix the flaky unit test  TestRegionReplicaSplit. It may fail as 

      java.lang.AssertionError: Splitted regions should not be assigned to same region server.

      See https://builds.apache.org/job/HBase-Flaky-Tests/job/master/5227/testReport/junit/org.apache.hadoop.hbase.master.assignment/TestRegionReplicaSplit/testRegionReplicaSplitRegionAssignment/.

       

      Now  wouldLowerAvailability method only consider the primary regions. The replica region can't assign to same server with primary region. But can be assigned to same server with other replica regions. 

       

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        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. HBASE-20741 Split of a region with replicas creates all daughter regions and its replica in same server

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. HBASE-23078 BaseLoadBalancer should consider region replicas when randomAssignment and roundRobinAssignment

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

          Web Link GitHub Pull Request #1001

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            People

              zghao Guanghao Zhang
              zghao Guanghao Zhang
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                Created:
                Updated:
                Resolved: