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Posted to notifications@accumulo.apache.org by "Keith Turner (JIRA)" <ji...@apache.org> on 2015/12/02 19:57:11 UTC

[jira] [Created] (ACCUMULO-4068) Unable to check if balancer can load

Keith Turner created ACCUMULO-4068:
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             Summary: Unable to check if balancer can load
                 Key: ACCUMULO-4068
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4068
             Project: Accumulo
          Issue Type: Bug
    Affects Versions: 1.7.0, 1.6.4
            Reporter: Keith Turner


I was trying to use instanceOperations().testClassLoad() to check if a the RegExGroupBalancer was available.  This class was added in 1.7, so I did not want to attempt to configure it in 1.6. 

Unexpectedly the call to testClassLoad() failed in 1.7.   I  looked into the cause and it turns out the implementation of testClassLoad() also tries to instantiate the class after loading using a noarg constructor.  Because of ACCUMULO-4047 the RegexGroupBalancer does not have a noarg constructor.



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