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https://issues.apache.org/jira/browse/PHOENIX-3098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15387553#comment-15387553
]
Ankit Singhal commented on PHOENIX-3098:
----------------------------------------
agreed [~enis]
> Possible NegativeArraySizeException while scanning local indexes during
> regions merge
> --------------------------------------------------------------------------------------
>
> Key: PHOENIX-3098
> URL: https://issues.apache.org/jira/browse/PHOENIX-3098
> Project: Phoenix
> Issue Type: Bug
> Reporter: Sergio Peleato
> Assignee: Rajeshbabu Chintaguntla
> Fix For: 4.8.0
>
> Attachments: PHOENIX-3098.patch
>
>
> While scanning local indexes during regions merge we might end up with
> NegativeArraySizeException which leads to RS down. The reason for this is
> some times HBase won't do real seek and considered fake keyvalues(can be scan
> start row) as seeked kvs. In that case we ended up with this issue when we
> call peek without seek. So for local indexes we need to enforce seek all the
> time for scanning local index reference files.
> {noformat}
> 2016-07-15 17:27:04,419 ERROR
> [B.fifo.QRpcServer.handler=8,queue=2,port=16020] coprocessor.CoprocessorHost:
> The coprocessor
> org.apache.hadoop.hbase.regionserver.IndexHalfStoreFileReaderGenerator threw
> java.lang.NegativeArraySizeException
> java.lang.NegativeArraySizeException
> at
> org.apache.hadoop.hbase.regionserver.LocalIndexStoreFileScanner.getNewRowkeyByRegionStartKeyReplacedWithSplitKey(LocalIndexStoreFileScanner.java:242)
> at
> org.apache.hadoop.hbase.regionserver.LocalIndexStoreFileScanner.getChangedKey(LocalIndexStoreFileScanner.java:76)
> at
> org.apache.hadoop.hbase.regionserver.LocalIndexStoreFileScanner.peek(LocalIndexStoreFileScanner.java:68)
> at
> org.apache.hadoop.hbase.regionserver.KeyValueHeap.<init>(KeyValueHeap.java:87)
> at
> org.apache.hadoop.hbase.regionserver.KeyValueHeap.<init>(KeyValueHeap.java:71)
> at
> org.apache.hadoop.hbase.regionserver.StoreScanner.resetKVHeap(StoreScanner.java:378)
> at
> org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:227)
> at
> org.apache.hadoop.hbase.regionserver.IndexHalfStoreFileReaderGenerator$1.<init>(IndexHalfStoreFileReaderGenerator.java:259)
> at
> org.apache.hadoop.hbase.regionserver.IndexHalfStoreFileReaderGenerator.preStoreScannerOpen(IndexHalfStoreFileReaderGenerator.java:258)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$51.call(RegionCoprocessorHost.java:1284)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$RegionOperation.call(RegionCoprocessorHost.java:1638)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1712)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperationWithResult(RegionCoprocessorHost.java:1677)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.preStoreScannerOpen(RegionCoprocessorHost.java:1279)
> at
> org.apache.hadoop.hbase.regionserver.HStore.getScanner(HStore.java:2110)
> at
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.<init>(HRegion.java:5568)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.instantiateRegionScanner(HRegion.java:2626)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:2612)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:2594)
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2271)
> at
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:32205)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2127)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:107)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:133)
> at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:108)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
> Thanks [~speleato] for finding this issue. Added you as reporter for this
> issue.
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