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From "Lars Hofhansl (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-4673) NPE in HFileReaderV2.close during major compaction when hfile.block.cache.size is set to 0
Date Tue, 25 Oct 2011 21:06:32 GMT
NPE in HFileReaderV2.close during major compaction when hfile.block.cache.size is set to 0

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                 Key: HBASE-4673
                 URL: https://issues.apache.org/jira/browse/HBASE-4673
             Project: HBase
          Issue Type: Bug
    Affects Versions: 0.94.0
            Reporter: Lars Hofhansl
            Priority: Minor


On a test system got this exception when hfile.block.cache.size is set to 0:

java.lang.NullPointerException
at org.apache.hadoop.hbase.io.hfile.HFileReaderV2.close(HFileReaderV2.java:321)
at org.apache.hadoop.hbase.regionserver.StoreFile$Reader.close(StoreFile.java:1065)
at org.apache.hadoop.hbase.regionserver.StoreFile.closeReader(StoreFile.java:539)
at org.apache.hadoop.hbase.regionserver.StoreFile.deleteReader(StoreFile.java:549)
at org.apache.hadoop.hbase.regionserver.Store.completeCompaction(Store.java:1314)
at org.apache.hadoop.hbase.regionserver.Store.compact(Store.java:686)
at org.apache.hadoop.hbase.regionserver.HRegion.compact(HRegion.java:1016)
at org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest.run(CompactionRequest.java:178)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619) 

Minor issue as nobody in their right mind with have hfile.block.cache.size=0

Looks like this is due to HBASE-4422

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