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https://issues.apache.org/jira/browse/HBASE-21601?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16757958#comment-16757958
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Duo Zhang commented on HBASE-21601:
-----------------------------------
And the problem is that, the WALKey is correct, but the WALEntry is broken? And
we can even read the protobuf message out, but when we want to read the cells
out the bytes are messed up?
Really strange...
> HBase (asyncwal?) can write a corrupted WAL record
> --------------------------------------------------
>
> Key: HBASE-21601
> URL: https://issues.apache.org/jira/browse/HBASE-21601
> Project: HBase
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Priority: Critical
> Attachments: wal2.txt
>
>
> {noformat}
> 2018-12-13 17:01:12,208 ERROR [RS_LOG_REPLAY_OPS-regionserver/...]
> executor.EventHandler: Caught throwable while processing event RS_LOG_REPLAY
> java.lang.RuntimeException: java.lang.NegativeArraySizeException
> at
> org.apache.hadoop.hbase.wal.WALSplitter$PipelineController.checkForErrors(WALSplitter.java:846)
> at
> org.apache.hadoop.hbase.wal.WALSplitter$OutputSink.finishWriting(WALSplitter.java:1203)
> at
> org.apache.hadoop.hbase.wal.WALSplitter$LogRecoveredEditsOutputSink.finishWritingAndClose(WALSplitter.java:1267)
> at
> org.apache.hadoop.hbase.wal.WALSplitter.splitLogFile(WALSplitter.java:349)
> at
> org.apache.hadoop.hbase.wal.WALSplitter.splitLogFile(WALSplitter.java:196)
> at
> org.apache.hadoop.hbase.regionserver.SplitLogWorker.splitLog(SplitLogWorker.java:178)
> at
> org.apache.hadoop.hbase.regionserver.SplitLogWorker.lambda$new$0(SplitLogWorker.java:90)
> at
> org.apache.hadoop.hbase.regionserver.handler.WALSplitterHandler.process(WALSplitterHandler.java:70)
> at
> org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.NegativeArraySizeException
> at org.apache.hadoop.hbase.CellUtil.cloneFamily(CellUtil.java:113)
> at
> org.apache.hadoop.hbase.wal.WALSplitter$LogRecoveredEditsOutputSink.filterCellByStore(WALSplitter.java:1542)
> at
> org.apache.hadoop.hbase.wal.WALSplitter$LogRecoveredEditsOutputSink.appendBuffer(WALSplitter.java:1586)
> at
> org.apache.hadoop.hbase.wal.WALSplitter$LogRecoveredEditsOutputSink.append(WALSplitter.java:1560)
> at
> org.apache.hadoop.hbase.wal.WALSplitter$WriterThread.writeBuffer(WALSplitter.java:1085)
> at
> org.apache.hadoop.hbase.wal.WALSplitter$WriterThread.doRun(WALSplitter.java:1077)
> at
> org.apache.hadoop.hbase.wal.WALSplitter$WriterThread.run(WALSplitter.java:1047)
> {noformat}
> Unfortunately I cannot share the file.
> The issue appears to be straightforward - for whatever reason the family
> length is negative. Not sure how such a cell got created, I suspect the file
> was corrupted.
> {code}
> byte[] output = new byte[cell.getFamilyLength()];
> {code}
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