Details
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Bug
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Status: Resolved
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Critical
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Resolution: Fixed
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3.0.0-alpha-1, 2.5.0, 2.3.5, 2.4.3
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None
Description
In our cluster, we found region servers may be crashed in several cases.
In hs_err_pid27712.log:
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) J 2687 sun.misc.Unsafe.copyMemory(Ljava/lang/Object;JLjava/lang/Object;JJ)V (0 bytes) @ 0x00007f85c987eda7 [0x00007f85c987ed40+0x67] J 5884 C1 org.apache.hadoop.hbase.util.UnsafeAccess.unsafeCopy(Ljava/lang/Object;JLjava/lang/Object;JJ)V (62 bytes) @ 0x00007f85c93fd904 [0x00007f85c93fd780+0x184] J 4274 C1 org.apache.hadoop.hbase.util.UnsafeAccess.copy(Ljava/nio/ByteBuffer;I[BII)V (73 bytes) @ 0x00007f85c9d57a94 [0x00007f85c9d574a0+0x5f4] J 5211 C2 org.apache.hadoop.hbase.util.ByteBufferUtils.copyFromBufferToArray([BLjava/nio/ByteBuffer;III)V (69 bytes) @ 0x00007f85ca039a34 [0x00007f85ca0399a0+0x94] J 5985 C1 org.apache.hadoop.hbase.CellUtil.copyQualifierTo(Lorg/apache/hadoop/hbase/Cell;[BI)I (59 bytes) @ 0x00007f85c9296a34 [0x00007f85c92964c0+0x574] J 6011 C1 org.apache.hadoop.hbase.ByteBufferKeyValue.getQualifierArray()[B (5 bytes) @ 0x00007f85c913e094 [0x00007f85c913d4c0+0xbd4] J 6004 C1 org.apache.hadoop.hbase.CellUtil.getCellKeyAsString(Lorg/apache/hadoop/hbase/Cell;Ljava/util/function/Function;)Ljava/lang/String; (211 bytes) @ 0x00007f85c93737b4 [0x00007f85c93722e0+0x14d4] J 6000 C1 org.apache.hadoop.hbase.CellUtil.getCellKeyAsString(Lorg/apache/hadoop/hbase/Cell;)Ljava/lang/String; (10 bytes) @ 0x00007f85c9854d14 [0x00007f85c9854ba0+0x174] j org.apache.hadoop.hbase.io.hfile.HFileWriterImpl.getMidpoint(Lorg/apache/hadoop/hbase/CellComparator;Lorg/apache/hadoop/hbase/Cell;Lorg/apache/hadoop/hbase/Cell;Lorg/apache/hadoop/hbase/io/hfile/HFileContext;)Lorg/apache/hadoop/hbase/Cell;+132 j org.apache.hadoop.hbase.io.hfile.HFileWriterImpl.finishBlock()V+102 j org.apache.hadoop.hbase.io.hfile.HFileWriterImpl.checkBlockBoundary()V+32 j org.apache.hadoop.hbase.io.hfile.HFileWriterImpl.append(Lorg/apache/hadoop/hbase/Cell;)V+77 j org.apache.hadoop.hbase.regionserver.StoreFileWriter.append(Lorg/apache/hadoop/hbase/Cell;)V+20 j org.apache.hadoop.hbase.regionserver.compactions.Compactor.performCompaction(Lorg/apache/hadoop/hbase/regionserver/compactions/Compactor$FileDetails;Lorg/apache/hadoop/hbase/regionserver/InternalScanner;Lorg/apache/hadoop/hbase/regionserver/CellSink;JZLorg/apache/hadoop/hbase/regionserver/throttle/ThroughputController;ZI)Z+318 j org.apache.hadoop.hbase.regionserver.compactions.Compactor.compact(Lorg/apache/hadoop/hbase/regionserver/compactions/CompactionRequestImpl;Lorg/apache/hadoop/hbase/regionserver/compactions/Compactor$InternalScannerFactory;Lorg/apache/hadoop/hbase/regionserver/compactions/Compactor$CellSinkFactory;Lorg/apache/hadoop/hbase/regionserver/throttle/ThroughputController;Lorg/apache/hadoop/hbase/security/User;)Ljava/util/List;+221 j org.apache.hadoop.hbase.regionserver.compactions.DefaultCompactor.compact(Lorg/apache/hadoop/hbase/regionserver/compactions/CompactionRequestImpl;Lorg/apache/hadoop/hbase/regionserver/throttle/ThroughputController;Lorg/apache/hadoop/hbase/security/User;)Ljava/util/List;+12 j org.apache.hadoop.hbase.regionserver.DefaultStoreEngine$DefaultCompactionContext.compact(Lorg/apache/hadoop/hbase/regionserver/throttle/ThroughputController;Lorg/apache/hadoop/hbase/security/User;)Ljava/util/List;+16 j org.apache.hadoop.hbase.regionserver.HStore.compact(Lorg/apache/hadoop/hbase/regionserver/compactions/CompactionContext;Lorg/apache/hadoop/hbase/regionserver/throttle/ThroughputController;Lorg/apache/hadoop/hbase/security/User;)Ljava/util/List;+194
In hs_err_pid28814.log:
Stack: [0x00007f6d8e69b000,0x00007f6d8e6dc000], sp=0x00007f6d8e6d9e88, free space=251k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0x747fa0] J 2989 sun.misc.Unsafe.copyMemory(Ljava/lang/Object;JLjava/lang/Object;JJ)V (0 bytes) @ 0x00007f751db756e1 [0x00007f751db75600+0xe1] j org.apache.hadoop.hbase.util.UnsafeAccess.unsafeCopy(Ljava/lang/Object;JLjava/lang/Object;JJ)V+36 j org.apache.hadoop.hbase.util.UnsafeAccess.copy(Ljava/nio/ByteBuffer;I[BII)V+69 j org.apache.hadoop.hbase.util.ByteBufferUtils.copyFromBufferToArray([BLjava/nio/ByteBuffer;III)V+39 j org.apache.hadoop.hbase.CellUtil.copyQualifierTo(Lorg/apache/hadoop/hbase/Cell;[BI)I+31 J 12082 C2 org.apache.hadoop.hbase.ByteBufferKeyValue.getQualifierArray()[B (5 bytes) @ 0x00007f751ef15fbc [0x00007f751ef15dc0+0x1fc] J 16584 C2 org.apache.hadoop.hbase.CellUtil.getCellKeyAsString(Lorg/apache/hadoop/hbase/Cell;Ljava/util/function/Function;)Ljava/lang/String; (211 bytes) @ 0x00007f751fe320b8 [0x00007f751fe31b80+0x538] J 17007 C2 org.apache.hadoop.hbase.regionserver.StoreFileWriter.append(Lorg/apache/hadoop/hbase/Cell;)V (31 bytes) @ 0x00007f751fc2c0f4 [0x00007f751fc2aac0+0x1634] J 17178 C2 org.apache.hadoop.hbase.regionserver.compactions.Compactor.performCompaction(Lorg/apache/hadoop/hbase/regionserver/compactions/Compactor$FileDetails;Lorg/apache/hadoop/hbase/regionserver/InternalScanner;Lorg/apache/hadoop/hbase/regionserver/CellSink;JZLorg/apache/hadoop/hbase/regionserver/throttle/ThroughputController;ZI)Z (767 bytes) @ 0x00007f751f8e330c [0x00007f751f8e2960+0x9ac] j org.apache.hadoop.hbase.regionserver.compactions.Compactor.compact(Lorg/apache/hadoop/hbase/regionserver/compactions/CompactionRequestImpl;Lorg/apache/hadoop/hbase/regionserver/compactions/Compactor$InternalScannerFactory;Lorg/apache/hadoop/hbase/regionserver/compactions/Compactor$CellSinkFactory;Lorg/apache/hadoop/hbase/regionserver/throttle/ThroughputController;Lorg/apache/hadoop/hbase/security/User;)Ljava/util/List;+221 j org.apache.hadoop.hbase.regionserver.compactions.DefaultCompactor.compact(Lorg/apache/hadoop/hbase/regionserver/compactions/CompactionRequestImpl;Lorg/apache/hadoop/hbase/regionserver/throttle/ThroughputController;Lorg/apache/hadoop/hbase/security/User;)Ljava/util/List;+12 j org.apache.hadoop.hbase.regionserver.DefaultStoreEngine$DefaultCompactionContext.compact(Lorg/apache/hadoop/hbase/regionserver/throttle/ThroughputController;Lorg/apache/hadoop/hbase/security/User;)Ljava/util/List;+16 j org.apache.hadoop.hbase.regionserver.HStore.compact(Lorg/apache/hadoop/hbase/regionserver/compactions/CompactionContext;Lorg/apache/hadoop/hbase/regionserver/throttle/ThroughputController;Lorg/apache/hadoop/hbase/security/User;)Ljava/util/List;+194
Sometimes, RS is not crashed but we can see the following logs:
2021-05-27T12:53:54,465 ERROR [RpcServer.default.FPBQ.Fifo.handler=2,queue=0,port=40769-shortCompactions-2] regionserver.CompactSplit$CompactionRunner(640): Compaction failed Request=regionName=t1,user00000000000000000080,1622091224198.cf38ea5f2ea0d90163b53c2b2fd329d2., storeName=A, fileCount=2, fileSize=2.0 M (1009.7 K, 1009.7 K), priority=1, time=16220912334172021-05-27T12:53:54,465 ERROR [RpcServer.default.FPBQ.Fifo.handler=2,queue=0,port=40769-shortCompactions-2] regionserver.CompactSplit$CompactionRunner(640): Compaction failed Request=regionName=t1,user00000000000000000080,1622091224198.cf38ea5f2ea0d90163b53c2b2fd329d2., storeName=A, fileCount=2, fileSize=2.0 M (1009.7 K, 1009.7 K), priority=1, time=1622091233417java.lang.IllegalArgumentException: Left byte array sorts after right row; left=user00000000000000000080, right=user00000000000000000001 at org.apache.hadoop.hbase.io.hfile.HFileWriterImpl.getMinimumMidpointArray(HFileWriterImpl.java:445) ~[classes/:?] at org.apache.hadoop.hbase.io.hfile.HFileWriterImpl.getMidpoint(HFileWriterImpl.java:390) ~[classes/:?]
Because byte buffers of cells have been already released, but RS still need to use these cells.