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https://issues.apache.org/jira/browse/HBASE-4673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13136444#comment-13136444
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Todd Lipcon commented on HBASE-4673:
------------------------------------
This should go in 0.92 also, right? (HFv2 is in 92)
> NPE in HFileReaderV2.close during major compaction when
> hfile.block.cache.size is set to 0
> -------------------------------------------------------------------------------------------
>
> 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
> Assignee: Lars Hofhansl
> Priority: Minor
> Fix For: 0.94.0
>
> Attachments: 4673.txt
>
>
> 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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