Details
Description
After HDFS-15865, we found client aborted due to an NPE.
2023-04-10 16:07:43,409 ERROR org.apache.hadoop.hbase.regionserver.HRegionServer: ***** ABORTING region server kqhdp36,16020,1678077077562: Replay of WAL required. Forcing server shutdown ***** org.apache.hadoop.hbase.DroppedSnapshotException: region: WAFER_ALL,16|CM RIE.MA1|CP1114561.18|PROC|0000,1625899466315.0fbdf0f1810efa9e68af831247e6555f. at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2870) at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2539) at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2511) at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2401) at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:613) at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:582) at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$1000(MemStoreFlusher.java:69) at org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:362) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.NullPointerException at org.apache.hadoop.hdfs.DataStreamer.waitForAckedSeqno(DataStreamer.java:880) at org.apache.hadoop.hdfs.DFSOutputStream.flushInternal(DFSOutputStream.java:781) at org.apache.hadoop.hdfs.DFSOutputStream.closeImpl(DFSOutputStream.java:898) at org.apache.hadoop.hdfs.DFSOutputStream.close(DFSOutputStream.java:850) at org.apache.hadoop.fs.FSDataOutputStream$PositionCache.close(FSDataOutputStream.java:76) at org.apache.hadoop.fs.FSDataOutputStream.close(FSDataOutputStream.java:105) at org.apache.hadoop.hbase.io.hfile.HFileWriterImpl.finishClose(HFileWriterImpl.java:859) at org.apache.hadoop.hbase.io.hfile.HFileWriterImpl.close(HFileWriterImpl.java:687) at org.apache.hadoop.hbase.regionserver.StoreFileWriter.close(StoreFileWriter.java:393) at org.apache.hadoop.hbase.regionserver.StoreFlusher.finalizeWriter(StoreFlusher.java:69) at org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher.flushSnapshot(DefaultStoreFlusher.java:78) at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:1047) at org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:2349) at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2806)
This is only possible if a data race happened. File this jira to improve the data and eliminate the data race.
Attachments
Issue Links
- is caused by
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HDFS-15865 Interrupt DataStreamer thread
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- Resolved
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- links to