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From "mohit.kaushik" <mohit.kaus...@orkash.com>
Subject Problem during compacting a table
Date Tue, 04 Aug 2015 12:05:17 GMT
Hello All,

I am using Apache Accumulo-1.6.3 with Apache Hadoop-2.7.0 on a 3 node 
cluster. when I give compact command from the shell it gives the 
folloing warn.

root@orkash testScan> compact -w
2015-08-04 17:10:52,702 [Shell.audit] INFO : root@orkash testScan> 
compact -w
2015-08-04 17:10:52,706 [shell.Shell] INFO : Compacting table ...
2015-08-04 17:12:53,986 [impl.ThriftTransportPool] *WARN : Thread 
"shell" stuck on IO  to orkash4:9999 (0) for at least 120034 ms*


Tablet Servers show problem regarding a data block. which is something 
like HDFS-8659 <https://issues.apache.org/jira/browse/HDFS-8659>

/2015-08-04 15:00:27,825 [hdfs.DFSClient] WARN : Failed to connect to 
/192.168.10.121:50010 for block, add to deadNodes and continue. 
java.io.IOException: Got error, status message opReadBlock 
BP-2102462487-192.168.10.124-1436956492274:blk_1073780678_39911 received 
exception 
org.apache.hadoop.hdfs.server.datanode.ReplicaNotFoundException: Replica 
not found for 
BP-2102462487-192.168.10.124-1436956492274:blk_1073780678_39911, for 
OP_READ_BLOCK, self=/192.168.10.121:38752, remote=/192.168.10.121:50010, 
for file /accumulo/tables/h/t-000016s/F000016t.rf, for pool 
BP-2102462487-192.168.10.124-1436956492274 block 1073780678_39911//
//java.io.IOException: Got error, status message opReadBlock 
BP-2102462487-192.168.10.124-1436956492274:blk_1073780678_39911 received 
exception 
org.apache.hadoop.hdfs.server.datanode.ReplicaNotFoundException: Replica 
not found for 
BP-2102462487-192.168.10.124-1436956492274:blk_1073780678_39911, for 
OP_READ_BLOCK, self=/192.168.10.121:38752, remote=/192.168.10.121:50010, 
for file /accumulo/tables/h/t-000016s/F000016t.rf, for pool 
BP-2102462487-192.168.10.124-1436956492274 block 1073780678_39911//
//        at 
org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)//
//        at 
org.apache.hadoop.hdfs.RemoteBlockReader2.checkSuccess(RemoteBlockReader2.java:456)//
//        at 
org.apache.hadoop.hdfs.RemoteBlockReader2.newBlockReader(RemoteBlockReader2.java:424)//
//        at 
org.apache.hadoop.hdfs.BlockReaderFactory.getRemoteBlockReader(BlockReaderFactory.java:814)//
//        at 
org.apache.hadoop.hdfs.BlockReaderFactory.getRemoteBlockReaderFromTcp(BlockReaderFactory.java:693)//
//        at 
org.apache.hadoop.hdfs.BlockReaderFactory.build(BlockReaderFactory.java:352)//
//        at 
org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:618)//
//        at 
org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:844)//
//        at 
org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:896)//
//        at java.io.DataInputStream.read(DataInputStream.java:149)//
//        at 
org.apache.accumulo.core.file.rfile.bcfile.BoundedRangeFileInputStream$1.run(BoundedRangeFileInputStream.java:104)//
//        at 
org.apache.accumulo.core.file.rfile.bcfile.BoundedRangeFileInputStream$1.run(BoundedRangeFileInputStream.java:100)//
//        at java.security.AccessController.doPrivileged(Native Method)//
//        at 
org.apache.accumulo.core.file.rfile.bcfile.BoundedRangeFileInputStream.read(BoundedRangeFileInputStream.java:100)//
//        at 
org.apache.hadoop.io.compress.DecompressorStream.getCompressedData(DecompressorStream.java:159)//
//        at 
org.apache.hadoop.io.compress.DecompressorStream.decompress(DecompressorStream.java:143)//
//        at 
org.apache.hadoop.io.compress.DecompressorStream.read(DecompressorStream.java:85)//
//        at 
java.io.BufferedInputStream.fill(BufferedInputStream.java:235)//
//        at 
java.io.BufferedInputStream.read(BufferedInputStream.java:254)//
//        at java.io.FilterInputStream.read(FilterInputStream.java:83)//
//        at java.io.DataInputStream.readInt(DataInputStream.java:387)//
//        at 
org.apache.accumulo.core.file.rfile.MultiLevelIndex$IndexBlock.readFields(MultiLevelIndex.java:269)//
//        at 
org.apache.accumulo.core.file.rfile.MultiLevelIndex$Reader.getIndexBlock(MultiLevelIndex.java:724)//
//        at 
org.apache.accumulo.core.file.rfile.MultiLevelIndex$Reader.access$100(MultiLevelIndex.java:497)//
//        at 
org.apache.accumulo.core.file.rfile.MultiLevelIndex$Reader$Node.getNext(MultiLevelIndex.java:587)//
//        at 
org.apache.accumulo.core.file.rfile.MultiLevelIndex$Reader$Node.getNextNode(MultiLevelIndex.java:593)//
//        at 
org.apache.accumulo.core.file.rfile.MultiLevelIndex$Reader$IndexIterator.getNextNode(MultiLevelIndex.java:616)//
//        at 
org.apache.accumulo.core.file.rfile.MultiLevelIndex$Reader$IndexIterator.next(MultiLevelIndex.java:659)//
//        at 
org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._next(RFile.java:559)/

Regards
Mohit Kaushik

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