[jira] [Created] (HBASE-13892) Scanner with all results filtered out results in NPE

["Josh Elser (JIRA)" <ji...@apache.org>]

Josh Elser created HBASE-13892:
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             Summary: Scanner with all results filtered out results in NPE
                 Key: HBASE-13892
                 URL: https://issues.apache.org/jira/browse/HBASE-13892
             Project: HBase
          Issue Type: Bug
          Components: Client
    Affects Versions: 1.1.0
            Reporter: Josh Elser
            Assignee: Josh Elser
            Priority: Critical
             Fix For: 1.2.0, 1.1.1


Saw a failure during some testing with region_mover.rb

{code}
NativeException: java.lang.NullPointerException: null
        __ensure__ at /usr/hdp/current/hbase-master/bin/region_mover.rb:110
  isSuccessfulScan at /usr/hdp/current/hbase-master/bin/region_mover.rb:109
  isSuccessfulScan at /usr/hdp/current/hbase-master/bin/region_mover.rb:104
     unloadRegions at /usr/hdp/current/hbase-master/bin/region_mover.rb:328
{code}

To try to get a real stacktrace, I wrote a simple test. Turns out, it was really simple to just produce the NPE within ClientScanner.

Patch with fix and test incoming.



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