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https://issues.apache.org/jira/browse/HBASE-23684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17015558#comment-17015558
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Guanghao Zhang commented on HBASE-23684:
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tableDesc or tableName is null. [~stack] How many tables in your test cluster?
> NPE HFilesOutputSink
> --------------------
>
> Key: HBASE-23684
> URL: https://issues.apache.org/jira/browse/HBASE-23684
> Project: HBase
> Issue Type: Bug
> Components: wal
> Affects Versions: 2.3.0
> Reporter: Michael Stack
> Priority: Major
>
> Enabling the new split to hfiles feature, HBASE-23286, running branch-2 tip,
> I see this out on RegionServers:
> {code}
> 2020-01-13 17:37:08,204 INFO org.apache.hadoop.hbase.wal.OutputSink: 3 split
> writer threads finished
> 2020-01-13 17:37:08,233 INFO org.apache.hadoop.hbase.wal.WALSplitter:
> Processed 1007 edits across 0 regions cost 284 ms; edits skipped=76;
> WAL=hdfs://nameservice1/hbase/genie/WALs/hbasedn101.example.org,16020,1578934806382-splitting/hbasedn101.example.org%2C16020%2C1578934806382.1578937008832,
> size=128.5 M, length=134708720, corrupted=false, progress failed=true
> 2020-01-13 17:37:08,234 WARN
> org.apache.hadoop.hbase.regionserver.SplitLogWorker: log splitting of
> WALs/hbasedn101.example.org,16020,1578934806382-splitting/hbasedn101.example.org%2C16020%2C1578934806382.1578937008832
> failed, returning error
> java.io.IOException: java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.wal.BoundedRecoveredHFilesOutputSink.writeRemainingEntryBuffers(BoundedRecoveredHFilesOutputSink.java:173)
> at
> org.apache.hadoop.hbase.wal.BoundedRecoveredHFilesOutputSink.close(BoundedRecoveredHFilesOutputSink.java:140)
> at
> org.apache.hadoop.hbase.wal.WALSplitter.splitLogFile(WALSplitter.java:339)
> at
> org.apache.hadoop.hbase.wal.WALSplitter.splitLogFile(WALSplitter.java:181)
> at
> org.apache.hadoop.hbase.regionserver.SplitLogWorker.splitLog(SplitLogWorker.java:105)
> at
> org.apache.hadoop.hbase.regionserver.SplitLogWorker.lambda$new$0(SplitLogWorker.java:84)
> at
> org.apache.hadoop.hbase.regionserver.handler.WALSplitterHandler.process(WALSplitterHandler.java:70)
> at
> org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:834)
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.wal.BoundedRecoveredHFilesOutputSink.configContextForNonMetaWriter(BoundedRecoveredHFilesOutputSink.java:225)
> at
> org.apache.hadoop.hbase.wal.BoundedRecoveredHFilesOutputSink.createRecoveredHFileWriter(BoundedRecoveredHFilesOutputSink.java:213)
> at
> org.apache.hadoop.hbase.wal.BoundedRecoveredHFilesOutputSink.append(BoundedRecoveredHFilesOutputSink.java:117)
> at
> org.apache.hadoop.hbase.wal.BoundedRecoveredHFilesOutputSink.lambda$writeRemainingEntryBuffers$3(BoundedRecoveredHFilesOutputSink.java:155)
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
> at
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
> {code}
> It is a bit odd because log says there were zero regions. Not sure what that
> was about.
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