I was increasing the storage on some of my data nodes and thus had to do a restart of the data
node. I use cdh3u2 and ran "/etc/init.d/hadoop-0.20-datanode restart" (I don't think this is a cdh
problem). Unfortunately doing the restart caused region servers to go offline. Is this expected
behavior? It seems like should recover for those just fine without giving up and dying since there
were other data nodes available. Here are the logs on the region server from when I restarted the
data node to when it decided to give up. To give you a little background I'm running a small
cluster with 4 region servers and 4 data nodes.
Thanks,
~Jeff
12/02/06 18:06:03 WARN hdfs.DFSClient: DFSOutputStream ResponseProcessor exception for block
blk_-4249058562504578427_18197java.io.IOException: Bad response 1 for block
blk_-4249058562504578427_18197 from datanode 10.49.129.134:50010
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$ResponseProcessor.run(DFSClient.java:2664)
12/02/06 18:06:03 INFO hdfs.DFSClient: Error Recovery for block blk_-4249058562504578427_18197
waiting for responder to exit.
12/02/06 18:06:03 WARN hdfs.DFSClient: Error Recovery for block blk_-4249058562504578427_18197 bad
datanode[2] 10.49.129.134:50010
12/02/06 18:06:03 WARN hdfs.DFSClient: Error Recovery for block blk_-4249058562504578427_18197 in
pipeline 10.59.39.142:50010, 10.234.50.225:50010, 10.49.129.134:50010, 10.49.29.92:50010: bad
datanode 10.49.129.134:50010
12/02/06 18:06:03 WARN wal.HLog: HDFS pipeline error detected. Found 3 replicas but expecting 4
replicas. Requesting close of hlog.
12/02/06 18:06:03 INFO wal.SequenceFileLogWriter: Using syncFs -- HDFS-200
12/02/06 18:06:03 WARN regionserver.ReplicationSourceManager: Replication
stopped, won't add new log
12/02/06 18:06:03 INFO wal.HLog: Roll
/hbase/.logs/ip-10-59-39-142.eu-west-1.compute.internal,60020,1328142685179/ip-10-59-39-142.eu-west-1.compute.internal%3A60020.1328549504988,
entries=3644, filesize=12276680. New hlog
/hbase/.logs/ip-10-59-39-142.eu-west-1.compute.internal,60020,1328142685179/ip-10-59-39-142.eu-west-1.compute.internal%3A60020.1328551563518
12/02/06 18:06:04 INFO hdfs.DFSClient: Exception in createBlockOutputStream java.io.IOException: Bad
connect ack with firstBadLink as 10.49.129.134:50010
12/02/06 18:06:04 INFO hdfs.DFSClient: Abandoning block
blk_6156813298944908969_18211
12/02/06 18:06:04 INFO hdfs.DFSClient: Excluding datanode 10.49.129.134:50010
12/02/06 18:06:04 WARN wal.HLog: HDFS pipeline error detected. Found 3 replicas but expecting 4
replicas. Requesting close of hlog.
12/02/06 18:07:06 WARN hdfs.DFSClient: DFSOutputStream ResponseProcessor exception for block
blk_-165678744483388406_18211java.io.IOException: Bad response 1 for block
blk_-165678744483388406_18211 from datanode 10.234.50.225:50010
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$ResponseProcessor.run(DFSClient.java:2664)
12/02/06 18:07:06 INFO hdfs.DFSClient: Error Recovery for block blk_-165678744483388406_18211
waiting for responder to exit.
12/02/06 18:07:06 WARN hdfs.DFSClient: Error Recovery for block blk_-165678744483388406_18211 bad
datanode[2] 10.234.50.225:50010
12/02/06 18:07:06 WARN hdfs.DFSClient: Error Recovery for block blk_-165678744483388406_18211 in
pipeline 10.59.39.142:50010, 10.49.29.92:50010, 10.234.50.225:50010: bad datanode 10.234.50.225:50010
12/02/06 18:09:21 WARN hdfs.DFSClient: DFSOutputStream ResponseProcessor exception for block
blk_-165678744483388406_18214java.io.IOException: Connection reset by peer
at sun.nio.ch.FileDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:237)
at sun.nio.ch.IOUtil.read(IOUtil.java:210)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:236)
at
org.apache.hadoop.net.SocketInputStream$Reader.performIO(SocketInputStream.java:55)
at
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:142)
at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:155)
at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:128)
at java.io.DataInputStream.readFully(DataInputStream.java:178)
at java.io.DataInputStream.readLong(DataInputStream.java:399)
at
org.apache.hadoop.hdfs.protocol.DataTransferProtocol$PipelineAck.readFields(DataTransferProtocol.java:120)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$ResponseProcessor.run(DFSClient.java:2634)
12/02/06 18:09:21 INFO hdfs.DFSClient: Error Recovery for block blk_-165678744483388406_18214
waiting for responder to exit.
12/02/06 18:09:21 WARN hdfs.DFSClient: Error Recovery for block blk_-165678744483388406_18214 bad
datanode[0] 10.59.39.142:50010
12/02/06 18:09:21 WARN hdfs.DFSClient: Error Recovery for block blk_-165678744483388406_18214 in
pipeline 10.59.39.142:50010, 10.49.29.92:50010: bad datanode 10.59.39.142:50010
12/02/06 18:09:55 WARN hdfs.DFSClient: DFSOutputStream ResponseProcessor exception for block
blk_-165678744483388406_18221java.io.IOException: Connection reset by peer
at sun.nio.ch.FileDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:237)
at sun.nio.ch.IOUtil.read(IOUtil.java:210)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:236)
at
org.apache.hadoop.net.SocketInputStream$Reader.performIO(SocketInputStream.java:55)
at
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:142)
at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:155)
at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:128)
at java.io.DataInputStream.readFully(DataInputStream.java:178)
at java.io.DataInputStream.readLong(DataInputStream.java:399)
at
org.apache.hadoop.hdfs.protocol.DataTransferProtocol$PipelineAck.readFields(DataTransferProtocol.java:120)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$ResponseProcessor.run(DFSClient.java:2634)
12/02/06 18:09:55 INFO hdfs.DFSClient: Error Recovery for block blk_-165678744483388406_18221
waiting for responder to exit.
12/02/06 18:09:56 WARN hdfs.DFSClient: Error Recovery for block blk_-165678744483388406_18221 bad
datanode[0] 10.49.29.92:50010
12/02/06 18:09:56 WARN hdfs.DFSClient: Error while syncing
java.io.IOException: All datanodes 10.49.29.92:50010 are bad. Aborting...
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.processDatanodeError(DFSClient.java:2766)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$1600(DFSClient.java:2305)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2477)
12/02/06 18:09:56 WARN hdfs.DFSClient: Error while syncing
java.io.IOException: All datanodes 10.49.29.92:50010 are bad. Aborting...
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.processDatanodeError(DFSClient.java:2766)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$1600(DFSClient.java:2305)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2477)
12/02/06 18:09:56 FATAL wal.HLog: Could not append. Requesting close of hlog
java.io.IOException: Reflection
at
org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogWriter.sync(SequenceFileLogWriter.java:147)
at org.apache.hadoop.hbase.regionserver.wal.HLog.sync(HLog.java:981)
at
org.apache.hadoop.hbase.regionserver.wal.HLog$LogSyncer.run(HLog.java:958)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogWriter.sync(SequenceFileLogWriter.java:145)
... 2 more
Caused by: java.io.IOException: All datanodes 10.49.29.92:50010 are bad.
Aborting...
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.processDatanodeError(DFSClient.java:2766)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$1600(DFSClient.java:2305)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2477)
12/02/06 18:09:56 ERROR wal.HLog: Error while syncing, requesting close of hlog
java.io.IOException: Reflection
at
org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogWriter.sync(SequenceFileLogWriter.java:147)
at org.apache.hadoop.hbase.regionserver.wal.HLog.sync(HLog.java:981)
at
org.apache.hadoop.hbase.regionserver.wal.HLog$LogSyncer.run(HLog.java:958)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogWriter.sync(SequenceFileLogWriter.java:145)
... 2 more
Caused by: java.io.IOException: All datanodes 10.49.29.92:50010 are bad.
Aborting...
--
Jeff Whiting
Qualtrics Senior Software Engineer
je...@qualtrics.com
