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From "Keith Turner (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-3141) Many RW failures due to balance check
Date Wed, 17 Sep 2014 19:48:34 GMT
Keith Turner created ACCUMULO-3141:
--------------------------------------

             Summary: Many RW failures due to balance check
                 Key: ACCUMULO-3141
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3141
             Project: Accumulo
          Issue Type: Bug
         Environment: 1.5.2 RC1, Hadoop 2.3.0, Zookeeper 3.4.5, CentOS 6, 20 node EC2

            Reporter: Keith Turner
             Fix For: 1.5.3, 1.6.1, 1.7.0


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

{noformat}
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)

{noformat}



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