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  1. Accumulo
  2. ACCUMULO-3141

Many RW failures due to balance check

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.6.3, 1.7.1, 1.8.0
    • Component/s: None
    • Labels:
      None
    • Environment:

      1.5.2 RC1, Hadoop 2.3.0, Zookeeper 3.4.5, CentOS 6, 20 node EC2

      Description

      While running RW test against 1.5.2 RC1, 10 of 17 walkers failed with a message like the following.

      16 19:35:48,820 [randomwalk.Framework] ERROR: Error during random walk
      java.lang.Exception: Error running node Concurrent.xml
              at org.apache.accumulo.test.randomwalk.Module.visit(Module.java:285)
              at org.apache.accumulo.test.randomwalk.Framework.run(Framework.java:63)
              at org.apache.accumulo.test.randomwalk.Framework.main(Framework.java:122)
              at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
              at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:606)
              at org.apache.accumulo.start.Main$1.run(Main.java:107)
              at java.lang.Thread.run(Thread.java:744)
      Caused by: java.lang.Exception: Error running node ct.CheckBalance
              at org.apache.accumulo.test.randomwalk.Module.visit(Module.java:285)
              at org.apache.accumulo.test.randomwalk.Module.visit(Module.java:254)
              ... 8 more
      Caused by: java.lang.Exception: servers are unbalanced! location 2487f8db354002f count 345 too far from average 151.86666666666667
              at org.apache.accumulo.test.randomwalk.concurrent.CheckBalance.visit(CheckBalance.java:86)
              at org.apache.accumulo.test.randomwalk.Module.visit(Module.java:254)
      
      

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              • Assignee:
                kturner Keith Turner
                Reporter:
                kturner Keith Turner
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                • Created:
                  Updated:
                  Resolved:

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