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https://issues.apache.org/jira/browse/HBASE-9519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13766681#comment-13766681
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Ted Yu commented on HBASE-9519:
-------------------------------
bq. i don't have the original accident log right now
Keeping log would be nice.
Looks like there is some issue with build environment. Can you run test suite
and post the result here ?
Thanks
> fix NPE in EncodedScannerV2.getFirstKeyInBlock()
> ------------------------------------------------
>
> Key: HBASE-9519
> URL: https://issues.apache.org/jira/browse/HBASE-9519
> Project: HBase
> Issue Type: Bug
> Components: HFile
> Affects Versions: 0.98.0, 0.96.1
> Reporter: Liang Xie
> Assignee: Liang Xie
> Attachments: HBASE-9519.txt, HBASE-9519-v2.txt
>
>
> we observed a reproducable NPE while scanning special table under special
> condition in our IntegratedTesting scenario, it was fixed by appling the
> attached patch.
> org.apache.hadoop.hbase.client.ScannerCallable@67ee75a5, java.io.IOException:
> java.io.IOException: java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:1186)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:1175)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.openScanner(HRegionServer.java:2391)
> at sun.reflect.GeneratedMethodAccessor24.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.apache.hadoop.hbase.ipc.SecureRpcEngine$Server.call(SecureRpcEngine.java:456)
> at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1426)
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.io.hfile.HFileReaderV2$EncodedScannerV2.getFirstKeyInBlock(HFileReaderV2.java:1071)
> at
> org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekBefore(HFileReaderV2.java:547)
> at
> org.apache.hadoop.hbase.io.HalfStoreFileReader$1.seekBefore(HalfStoreFileReader.java:159)
> at
> org.apache.hadoop.hbase.io.HalfStoreFileReader$1.seekBefore(HalfStoreFileReader.java:142)
> at
> org.apache.hadoop.hbase.io.HalfStoreFileReader.getLastKey(HalfStoreFileReader.java:267)
> at
> org.apache.hadoop.hbase.regionserver.StoreFile$Reader.passesKeyRangeFilter(StoreFile.java:1543)
> at
> org.apache.hadoop.hbase.regionserver.StoreFileScanner.shouldUseScanner(StoreFileScanner.java:375)
> at
> org.apache.hadoop.hbase.regionserver.StoreScanner.selectScannersFrom(StoreScanner.java:298)
> at
> org.apache.hadoop.hbase.regionserver.StoreScanner.getScannersNoCompaction(StoreScanner.java:262)
> at
> org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:149)
> at org.apache.hadoop.hbase.regionserver.Store.getScanner(Store.java:2122)
> at
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.<init>(HRegion.java:3460)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.instantiateRegionScanner(HRegion.java:1645)
> at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1635)
> at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1610)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.openScanner(HRegionServer.java:2377)
> ... 5 more
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