[HBASE-22862] Region Server crash with: Added a key not lexically larger than previous - ASF JIRA

Details

Type: Bug
Status: Open
Priority: Critical
Resolution: Unresolved
Affects Version/s: 1.4.10
Fix Version/s: None
Component/s: regionserver
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Environment:
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openjdk version "1.8.0_181" OpenJDK Runtime Environment (Zulu 8.31.0.1-linux64) (build 1.8.0_181-b02) OpenJDK 64-Bit Server VM (Zulu 8.31.0.1-linux64) (build 25.181-b02, mixed mode)
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openjdk version "1.8.0_181" OpenJDK Runtime Environment (Zulu 8.31.0.1-linux64) (build 1.8.0_181-b02) OpenJDK 64-Bit Server VM (Zulu 8.31.0.1-linux64) (build 25.181-b02, mixed mode)

Description

We observe error "Added a key not lexically larger than previous” that cause most of our region-servers to crash in our cluster.

2019-08-15 18:02:10,554 INFO  [MemStoreFlusher.0] regionserver.HRegion: Flushing 1/1 column families, memstore=56.08 MB
2019-08-15 18:02:10,727 WARN  [MemStoreFlusher.0] regionserver.HStore: Failed flushing store file, retrying num=0
java.io.IOException: Added a key not lexically larger than previous. Current cell = \x0901820448218>wGavb'/d:elr/1565881054828/DeleteColumn/vlen=0/seqid=44456567, lastCell = \x0901820448218>wGavb'/d:elr/1565881054828/Put/vlen=1/seqid=44457770
       at org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter.checkKey(AbstractHFileWriter.java:204)
       at org.apache.hadoop.hbase.io.hfile.HFileWriterV2.append(HFileWriterV2.java:279)
       at org.apache.hadoop.hbase.io.hfile.HFileWriterV3.append(HFileWriterV3.java:87)
       at org.apache.hadoop.hbase.regionserver.StoreFile$Writer.append(StoreFile.java:1127)
       at org.apache.hadoop.hbase.regionserver.StoreFlusher.performFlush(StoreFlusher.java:139)
       at org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher.flushSnapshot(DefaultStoreFlusher.java:75)
       at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:1003)
       at org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:2523)
       at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2622)
       at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2352)
       at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2314)
       at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2200)
       at org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:2125)
       at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:512)
       at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:482)
       at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$900(MemStoreFlusher.java:76)
       at org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:264)
       at java.lang.Thread.run(Thread.java:748)

2019-08-15 18:02:21,776 WARN  [MemStoreFlusher.0] regionserver.HStore: Failed flushing store file, retrying num=9
java.io.IOException: Added a key not lexically larger than previous. Current cell = \x0901820448218>wGavb'/d:elr/1565881054828/DeleteColumn/vlen=0/seqid=44456567, lastCell = \x0901820448218>wGavb'/d:elr/1565881054828/Put/vlen=1/seqid=44457770
       at org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter.checkKey(AbstractHFileWriter.java:204)
       at org.apache.hadoop.hbase.io.hfile.HFileWriterV2.append(HFileWriterV2.java:279)
       at org.apache.hadoop.hbase.io.hfile.HFileWriterV3.append(HFileWriterV3.java:87)
       at org.apache.hadoop.hbase.regionserver.StoreFile$Writer.append(StoreFile.java:1127)
       at org.apache.hadoop.hbase.regionserver.StoreFlusher.performFlush(StoreFlusher.java:139)
       at org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher.flushSnapshot(DefaultStoreFlusher.java:75)
       at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:1003)
       at org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:2523)
       at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2622)
       at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2352)
       at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2314)
       at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2200)
       at org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:2125)
       at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:512)
       at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:482)
       at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$900(MemStoreFlusher.java:76)
       at org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:264)
       at java.lang.Thread.run(Thread.java:748)

2019-08-15 18:02:21,777 FATAL [MemStoreFlusher.0] regionserver.HRegionServer: ABORTING region server prod006,60020,1565873610692: Replay of WAL required. Forcing server shutdown
org.apache.hadoop.hbase.DroppedSnapshotException: region: TBL_TABLE_CODE,\x0904606203097821slG=sPD,1563070299676.5110b3395ca64a51cea99c6572a4c3d9.
       at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2675)
       at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2352)
       at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2314)
       at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2200)
       at org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:2125)
       at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:512)
       at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:482)
       at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$900(MemStoreFlusher.java:76)
       at org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:264)
       at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Added a key not lexically larger than previous. Current cell = \x0901820448218>wGavb'/d:elr/1565881054828/DeleteColumn/vlen=0/seqid=44456567, lastCell = \x0901820448218>wGavb'/d:elr/1565881054828/Put/vlen=1/seqid=44457770
       at org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter.checkKey(AbstractHFileWriter.java:204)
       at org.apache.hadoop.hbase.io.hfile.HFileWriterV2.append(HFileWriterV2.java:279)
       at org.apache.hadoop.hbase.io.hfile.HFileWriterV3.append(HFileWriterV3.java:87)
       at org.apache.hadoop.hbase.regionserver.StoreFile$Writer.append(StoreFile.java:1127)
       at org.apache.hadoop.hbase.regionserver.StoreFlusher.performFlush(StoreFlusher.java:139)
       at org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher.flushSnapshot(DefaultStoreFlusher.java:75)
       at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:1003)
       at org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:2523)
       at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2622)
       ... 9 more

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HBASE-22862.UT.v02.patch
27/Aug/19 07:08
4 kB
Zheng Hu
HBASE-22862.UT.v01.patch
27/Aug/19 04:34
3 kB
Zheng Hu

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HBASE-23084 Out-of-order adjacent keys causes regionserver crash

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Region Server crash with: Added a key not lexically larger than previous

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