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Josh Elser commented on HBASE-13892: ------------------------------------ (also, thanks for the reviews, [~tedyu], [~ndimiduk] and [~enis]!) > 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: 2.0.0, 0.98.14, 1.0.2, 1.2.0, 1.1.1 > > Attachments: HBASE-13892.patch > > > 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. > {code} > java.lang.NullPointerException: null > at > org.apache.hadoop.hbase.client.ClientScanner.getResultsToAddToCache(ClientScanner.java:576) > at > org.apache.hadoop.hbase.client.ClientScanner.loadCache(ClientScanner.java:492) > at > org.apache.hadoop.hbase.client.ClientScanner.next(ClientScanner.java:364) > {code} > Patch with fix and test incoming. -- This message was sent by Atlassian JIRA (v6.3.4#6332)