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https://issues.apache.org/jira/browse/HDFS-5720?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Suresh Srinivas resolved HDFS-5720.
-----------------------------------
Resolution: Not A Problem
> DataNode always READ_BLOCK or WRITE_BLOCK
> -----------------------------------------
>
> Key: HDFS-5720
> URL: https://issues.apache.org/jira/browse/HDFS-5720
> Project: Hadoop HDFS
> Issue Type: Task
> Components: datanode
> Affects Versions: 2.2.0
> Reporter: yangping wu
> Priority: Trivial
> Original Estimate: 480h
> Remaining Estimate: 480h
>
> I find many following errors on my datanode's log. What is the reason for
> this and how can I resolved it?
> {code}
> 2014-01-05 00:14:40,589 ERROR
> org.apache.hadoop.hdfs.server.datanode.DataNode: date51:50010:DataXceiver
> error processing WRITE_BLOCK operation src: /192.168.246.57:35455 dest:
> /192.168.246.75:50010
> java.io.IOException: Premature EOF from inputStream
> at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:194)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doReadFully(PacketReceiver.java:213)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doRead(PacketReceiver.java:134)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.receiveNextPacket(PacketReceiver.java:109)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receivePacket(BlockReceiver.java:435)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:693)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:569)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:115)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:68)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:221)
> at java.lang.Thread.run(Thread.java:744)
> 2014-01-05 02:50:52,552 ERROR
> org.apache.hadoop.hdfs.server.datanode.DataNode: date51:50010:DataXceiver
> error processing READ_BLOCK operation src: /192.168.246.39:46693 dest:
> /192.168.246.75:50010
> org.apache.hadoop.hdfs.server.datanode.ReplicaNotFoundException: Replica not
> found for
> BP-1398136447-192.168.246.60-1386067202761:blk_1089253308_1099605945003
> at
> org.apache.hadoop.hdfs.server.datanode.BlockSender.getReplica(BlockSender.java:418)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockSender.<init>(BlockSender.java:228)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.readBlock(DataXceiver.java:327)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opReadBlock(Receiver.java:101)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:65)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:221)
> at java.lang.Thread.run(Thread.java:744)
> 2014-01-05 07:39:30,939 ERROR
> org.apache.hadoop.hdfs.server.datanode.DataNode:
> DataNode{data=FSDataset{dirpath='[/data1/hadoop/dfs/current,
> /data2/hadoop/dfs/current, /data3/hadoop/dfs/current,
> /data4/hadoop/dfs/current, /data5/hadoop/dfs/current,
> /data6/hadoop/dfs/current, /data7/hadoop/dfs/current,
> /data8/hadoop/dfs/current, /data9/hadoop/dfs/current,
> /data10/hadoop/dfs/current, /data11/hadoop/dfs/current,
> /data12/hadoop/dfs/current]'}, localName='date51:50010',
> storageID='DS-1312530819-192.168.246.75-50010-1388062043867',
> xmitsInProgress=0}:Exception transfering block
> BP-1398136447-192.168.246.60-1386067202761:blk_1089401766_1099606093471 to
> mirror 192.168.242.51:50010: java.io.IOException: Connection reset by peer
> 2014-01-05 07:39:30,939 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
> opWriteBlock
> BP-1398136447-192.168.246.60-1386067202761:blk_1089401766_1099606093471
> received exception java.io.IOException: Connection reset by peer
> 2014-01-05 07:39:30,939 ERROR
> org.apache.hadoop.hdfs.server.datanode.DataNode: date51:50010:DataXceiver
> error processing WRITE_BLOCK operation src: /192.168.246.75:44779 dest:
> /192.168.246.75:50010
> java.io.IOException: Connection reset by peer
> at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
> at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
> at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
> at sun.nio.ch.IOUtil.read(IOUtil.java:197)
> at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379)
> at
> org.apache.hadoop.net.SocketInputStream$Reader.performIO(SocketInputStream.java:57)
> at
> org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:142)
> at
> org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:161)
> at
> org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:131)
> at
> org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:118)
> at java.io.FilterInputStream.read(FilterInputStream.java:83)
> at java.io.FilterInputStream.read(FilterInputStream.java:83)
> at
> org.apache.hadoop.hdfs.protocolPB.PBHelper.vintPrefixed(PBHelper.java:1490)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:511)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:115)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:68)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:221)
> at java.lang.Thread.run(Thread.java:744)
> 2014-01-05 09:47:58,332 ERROR
> org.apache.hadoop.hdfs.server.datanode.DataNode: date51:50010:DataXceiver
> error processing READ_BLOCK operation src: /192.168.246.40:48386 dest:
> /192.168.246.75:50010
> java.net.SocketTimeoutException: 480000 millis timeout while waiting for
> channel to be ready for write. ch : java.nio.channels.SocketChannel[connected
> local=/192.168.246.75:50010 remote=/192.168.246.40:48386]
> at
> org.apache.hadoop.net.SocketIOWithTimeout.waitForIO(SocketIOWithTimeout.java:246)
> at
> org.apache.hadoop.net.SocketOutputStream.waitForWritable(SocketOutputStream.java:172)
> at
> org.apache.hadoop.net.SocketOutputStream.transferToFully(SocketOutputStream.java:220)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockSender.sendPacket(BlockSender.java:546)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockSender.sendBlock(BlockSender.java:710)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.readBlock(DataXceiver.java:340)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opReadBlock(Receiver.java:101)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:65)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:221)
> at java.lang.Thread.run(Thread.java:744)
> {code}
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