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From xeon <xeonmailingl...@gmail.com>
Subject Re: can't copy between hdfs
Date Sun, 13 Apr 2014 10:43:22 GMT
As far as I can see, the source host can't write to the destination 
host. This is a similar problem to the one described here 
(https://groups.google.com/a/cloudera.org/forum/#!topic/cdh-user/0nTALQjbrT0 
). But I can't find a way to fix this error. Any help to try to fix this?

On 04/13/2014 11:08 AM, xeon wrote:
> Hi,
>
> I am trying to copy data between HDFS that are located away from each 
> other, and when I run the distcp command, I get the errors below in 
> the namenode and the datanode of the target hosts. What is happening?
>
> The 2 mapreduce runtime are running in a VLAN. The host are physically 
> distant, but they use the same IP range.
>
> Command:
> hadoop distcp hdfs://WorkGroup0000:9000/wiki 
> hdfs://WorkGroup0010:9000/wiki
>
> Namenode logs of the source host:
> 2014-04-13 10:01:24,213 INFO org.apache.hadoop.hdfs.StateChange: 
> BLOCK* allocateBlock: 
> /tmp/hadoop-yarn/staging/root/.staging/job_1397327306299_0045/job.splitmetainfo. 
> BP-1662111526-172.16.100.13-1397327293758 
> blk_-5400567409103494582_6969{blockUCState=UNDER_CONSTRUCTION, 
> primaryNodeIndex=-1, 
> replicas=[ReplicaUnderConstruction[172.16.100.15:50010|RBW]]}
> 2014-04-13 10:01:24,218 INFO BlockStateChange: BLOCK* addStoredBlock: 
> blockMap updated: 172.16.100.15:50010 is added to 
> blk_-5400567409103494582_6969{blockUCState=UNDER_CONSTRUCTION, 
> primaryNodeIndex=-1, 
> replicas=[ReplicaUnderConstruction[172.16.100.15:50010|RBW]]} size 0
> 2014-04-13 10:01:24,219 INFO org.apache.hadoop.hdfs.StateChange: DIR* 
> completeFile: 
> /tmp/hadoop-yarn/staging/root/.staging/job_1397327306299_0045/job.splitmetainfo 
> is closed by DFSClient_NONMAPREDUCE_458023096_1
> 2014-04-13 10:01:24,320 INFO org.apache.hadoop.hdfs.StateChange: 
> BLOCK* allocateBlock: 
> /tmp/hadoop-yarn/staging/root/.staging/job_1397327306299_0045/job.xml. 
> BP-1662111526-172.16.100.13-1397327293758 
> blk_489660666766888075_6971{blockUCState=UNDER_CONSTRUCTION, 
> primaryNodeIndex=-1, 
> replicas=[ReplicaUnderConstruction[172.16.100.14:50010|RBW]]}
> 2014-04-13 10:01:24,328 INFO BlockStateChange: BLOCK* addStoredBlock: 
> blockMap updated: 172.16.100.14:50010 is added to 
> blk_489660666766888075_6971{blockUCState=UNDER_CONSTRUCTION, 
> primaryNodeIndex=-1, 
> replicas=[ReplicaUnderConstruction[172.16.100.14:50010|RBW]]} size 0
> 2014-04-13 10:01:24,329 INFO org.apache.hadoop.hdfs.StateChange: DIR* 
> completeFile: 
> /tmp/hadoop-yarn/staging/root/.staging/job_1397327306299_0045/job.xml 
> is closed by DFSClient_NONMAPREDUCE_458023096_1
> 2014-04-13 10:01:24,389 INFO org.apache.hadoop.hdfs.StateChange: 
> BLOCK* allocateBlock: 
> /tmp/hadoop-yarn/staging/root/.staging/job_1397327306299_0045/appTokens. 
> BP-1662111526-172.16.100.13-1397327293758 
> blk_-5469411569413407886_6973{blockUCState=UNDER_CONSTRUCTION, 
> primaryNodeIndex=-1, 
> replicas=[ReplicaUnderConstruction[172.16.100.16:50010|RBW]]}
> 2014-04-13 10:01:24,396 INFO BlockStateChange: BLOCK* addStoredBlock: 
> blockMap updated: 172.16.100.16:50010 is added to 
> blk_-5469411569413407886_6973{blockUCState=UNDER_CONSTRUCTION, 
> primaryNodeIndex=-1, 
> replicas=[ReplicaUnderConstruction[172.16.100.16:50010|RBW]]} size 0
> 2014-04-13 10:01:24,397 INFO org.apache.hadoop.hdfs.StateChange: DIR* 
> completeFile: 
> /tmp/hadoop-yarn/staging/root/.staging/job_1397327306299_0045/appTokens is 
> closed by DFSClient_NONMAPREDUCE_458023096_1
> 2014-04-13 10:01:26,904 INFO BlockStateChange: BLOCK* ask 
> 172.16.100.14:50010 to replicate blk_8868060350766479646_6965 to 
> datanode(s) 172.16.100.16:50010 172.16.100.15:50010
> 2014-04-13 10:01:27,932 INFO org.apache.hadoop.hdfs.StateChange: 
> BLOCK* allocateBlock: 
> /tmp/hadoop-yarn/staging/root/.staging/job_1397327306299_0045/job_1397327306299_0045_1_conf.xml.

> BP-1662111526-172.16.100.13-1397327293758 
> blk_1012068924814169940_6976{blockUCState=UNDER_CONSTRUCTION, 
> primaryNodeIndex=-1, 
> replicas=[ReplicaUnderConstruction[172.16.100.14:50010|RBW]]}
> 2014-04-13 10:01:27,972 INFO BlockStateChange: BLOCK* addStoredBlock: 
> blockMap updated: 172.16.100.14:50010 is added to 
> blk_1012068924814169940_6976{blockUCState=UNDER_CONSTRUCTION, 
> primaryNodeIndex=-1, 
> replicas=[ReplicaUnderConstruction[172.16.100.14:50010|RBW]]} size 0
> 2014-04-13 10:01:27,973 INFO org.apache.hadoop.hdfs.StateChange: DIR* 
> completeFile: 
> /tmp/hadoop-yarn/staging/root/.staging/job_1397327306299_0045/job_1397327306299_0045_1_conf.xml

> is closed by DFSClient_NONMAPREDUCE_-1471236856_1
> 2014-04-13 10:01:28,603 INFO BlockStateChange: BLOCK* addStoredBlock: 
> blockMap updated: 172.16.100.16:50010 is added to 
> blk_8868060350766479646_6965 size 80053
> 2014-04-13 10:01:28,605 INFO BlockStateChange: BLOCK* addStoredBlock: 
> blockMap updated: 172.16.100.15:50010 is added to 
> blk_8868060350766479646_6965 size 80053
>
>
>
> Datanode logs of the source host:
>
> 2014-04-13 10:01:24,234 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode: Receiving 
> BP-1662111526-172.16.100.13-1397327293758:blk_-4909667885926150941_6959 src: 
> /172.16.100.13:51419 dest: /172.16.100.16:50010
> 2014-04-13 10:01:24,248 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode.clienttrace: src: 
> /172.16.100.13:51419, dest: /172.16.100.16:50010, bytes: 233, op: 
> HDFS_WRITE, cliID: DFSClient_NONMAPREDUCE_458023096_1, offset: 0, 
> srvID: DS-1825202225-172.16.100.16-50010-1397327304669, blockid: 
> BP-1662111526-172.16.100.13-1397327293758:blk_-4909667885926150941_6959, 
> duration: 12489490
> 2014-04-13 10:01:24,248 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode: PacketResponder: 
> BP-1662111526-172.16.100.13-1397327293758:blk_-4909667885926150941_6959, 
> type=LAST_IN_PIPELINE, downstreams=0:[] terminating
> 2014-04-13 10:01:24,282 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode.clienttrace: src: 
> /172.16.100.16:50010, dest: /172.16.100.13:51420, bytes: 237, op: 
> HDFS_READ, cliID: DFSClient_NONMAPREDUCE_458023096_1, offset: 0, 
> srvID: DS-1825202225-172.16.100.16-50010-1397327304669, blockid: 
> BP-1662111526-172.16.100.13-1397327293758:blk_-4909667885926150941_6959, 
> duration: 78237
> 2014-04-13 10:01:24,319 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode.clienttrace: src: 
> /172.16.100.16:50010, dest: /172.16.100.13:51420, bytes: 237, op: 
> HDFS_READ, cliID: DFSClient_NONMAPREDUCE_458023096_1, offset: 0, 
> srvID: DS-1825202225-172.16.100.16-50010-1397327304669, blockid: 
> BP-1662111526-172.16.100.13-1397327293758:blk_-4909667885926150941_6959, 
> duration: 98085
> 2014-04-13 10:01:24,868 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode.clienttrace: src: 
> /172.16.100.16:50010, dest: /172.16.100.13:51420, bytes: 237, op: 
> HDFS_READ, cliID: DFSClient_NONMAPREDUCE_458023096_1, offset: 0, 
> srvID: DS-1825202225-172.16.100.16-50010-1397327304669, blockid: 
> BP-1662111526-172.16.100.13-1397327293758:blk_-4909667885926150941_6959, 
> duration: 68844
> 2014-04-13 10:01:24,902 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode: Receiving 
> BP-1662111526-172.16.100.13-1397327293758:blk_7617264601876797381_6967 
> src: /172.16.100.14:43154 dest: /172.16.100.16:50010
> 2014-04-13 10:01:24,907 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode.clienttrace: src: 
> /172.16.100.14:43154, dest: /172.16.100.16:50010, bytes: 142, op: 
> HDFS_WRITE, cliID: DFSClient_NONMAPREDUCE_458023096_1, offset: 0, 
> srvID: DS-1825202225-172.16.100.16-50010-1397327304669, blockid: 
> BP-1662111526-172.16.100.13-1397327293758:blk_7617264601876797381_6967, duration: 
> 2647953
> 2014-04-13 10:01:24,907 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode: PacketResponder: 
> BP-1662111526-172.16.100.13-1397327293758:blk_7617264601876797381_6967, type=LAST_IN_PIPELINE,

> downstreams=0:[] terminating
> 2014-04-13 10:01:25,094 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode: Receiving 
> BP-1662111526-172.16.100.13-1397327293758:blk_-5469411569413407886_6973 src: 
> /172.16.100.13:51429 dest: /172.16.100.16:50010
> 2014-04-13 10:01:25,098 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode.clienttrace: src: 
> /172.16.100.13:51429, dest: /172.16.100.16:50010, bytes: 7, op: 
> HDFS_WRITE, cliID: DFSClient_NONMAPREDUCE_458023096_1, offset: 0, 
> srvID: DS-1825202225-172.16.100.16-50010-1397327304669, blockid: 
> BP-1662111526-172.16.100.13-1397327293758:blk_-5469411569413407886_6973, 
> duration: 3098167
> 2014-04-13 10:01:25,098 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode: PacketResponder: 
> BP-1662111526-172.16.100.13-1397327293758:blk_-5469411569413407886_6973, 
> type=LAST_IN_PIPELINE, downstreams=0:[] terminating
> 2014-04-13 10:01:25,434 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode.clienttrace: src: 
> /172.16.100.16:50010, dest: /172.16.100.14:43158, bytes: 11, op: 
> HDFS_READ, cliID: DFSClient_NONMAPREDUCE_-746601717_397829, offset: 0, 
> srvID: DS-1825202225-172.16.100.16-50010-1397327304669, blockid: 
> BP-1662111526-172.16.100.13-1397327293758:blk_-5469411569413407886_6973, 
> duration: 75148
> 2014-04-13 10:01:29,294 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode: Receiving 
> BP-1662111526-172.16.100.13-1397327293758:blk_8868060350766479646_6965 
> src: /172.16.100.14:43167 dest: /172.16.100.16:50010
> 2014-04-13 10:01:29,304 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode: Received 
> BP-1662111526-172.16.100.13-1397327293758:blk_8868060350766479646_6965 
> src: /172.16.100.14:43167 dest: /172.16.100.16:50010 of size 80053
> 2014-04-13 10:01:30,686 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode.clienttrace: src: 
> /172.16.100.16:50010, dest: /172.16.100.16:46021, bytes: 80681, op: 
> HDFS_READ, cliID: DFSClient_NONMAPREDUCE_113851557_419414, offset: 0, 
> srvID: DS-1825202225-172.16.100.16-50010-1397327304669, blockid: 
> BP-1662111526-172.16.100.13-1397327293758:blk_8868060350766479646_6965, duration: 
> 129669
>
> Namenode logs of the target host:
> 2014-04-13 09:48:23,471 INFO org.apache.hadoop.hdfs.StateChange: 
> BLOCK* allocateBlock: 
> /wiki/.distcp.tmp.attempt_1397327306299_0044_m_000008_0. 
> BP-862979082-172.16.100.5-1397327020274 
> blk_-5593655825051572228_6376{blockUCState=UNDER_CONSTRUCTION, 
> primaryNodeIndex=-1, 
> replicas=[ReplicaUnderConstruction[172.16.100.8:50010|RBW]]}
>
>
> Datanode logs of the target host:
> 2014-04-13 09:48:43,789 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode: PacketResponder: 
> BP-862979082-172.16.100.5-1397327020274:blk_3331673758913146011_6363, 
> type=LAST_IN_PIPELINE, downstreams=0:[]: Thread is interrupted.
> 2014-04-13 09:48:43,789 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode: PacketResponder: 
> BP-862979082-172.16.100.5-1397327020274:blk_3331673758913146011_6363, 
> type=LAST_IN_PIPELINE, downstreams=0:[] terminating
> 2014-04-13 09:48:43,789 INFO 
> org.apache.hadoop.hdfs.server.datanode.DataNode: opWriteBlock 
> BP-862979082-172.16.100.5-1397327020274:blk_3331673758913146011_6363 
> received exception java.net.SocketTimeoutException: 60000 millis 
> timeout while waiting for channel to be ready for read. ch : 
> java.nio.channels.SocketChannel[connected local=/172.16.100.8:50010 
> remote=/172.16.100.14:44724]
> 2014-04-13 09:48:43,789 ERROR 
> org.apache.hadoop.hdfs.server.datanode.DataNode: 
> WorkGroup0013:50010:DataXceiver error processing WRITE_BLOCK 
> operation  src: /172.16.100.14:44724 dest: /172.16.100.8:50010
> java.net.SocketTimeoutException: 60000 millis timeout while waiting 
> for channel to be ready for read. ch : 
> java.nio.channels.SocketChannel[connected local=/172.16.100.8:50010 
> remote=/172.16.100.14:44724]
>     at 
> org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:164)
>     at 
> org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:159)
>     at 
> org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:129)
>     at java.io.FilterInputStream.read(FilterInputStream.java:116)
>     at java.io.BufferedInputStream.read1(BufferedInputStream.java:256)
>     at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
>     at java.io.DataInputStream.read(DataInputStream.java:132)
>     at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:192)
>
>
> core-site.xml and hdfs-site.xml of the source host:
>
> # cat ~/Programs/hadoop/etc/hadoop/core-site.xml
> <?xml version="1.0" encoding="UTF-8"?>
> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
>
> <!-- Put site-specific property overrides in this file. -->
> <configuration>
>   <property> <name>fs.default.name</name> 
> <value>hdfs://172.16.100.13:9000</value> </property>
>   <property> <name>hadoop.tmp.dir</name> 
> <value>/tmp/hadoop-temp</value> </property>
> <property><name>hadoop.proxyuser.root.hosts</name><value>*</value></property>
> <property><name>hadoop.proxyuser.root.groups</name><value>*</value></property>
>   <property> <name>dfs.permissions</name> <value>false</value>
</property>
> </configuration>
> # cat ~/Programs/hadoop/etc/hadoop/hdfs-site.xml
> <?xml version="1.0" encoding="UTF-8"?>
> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
>
> <!-- Put site-specific property overrides in this file. -->
> <configuration>
>         <property> <name>dfs.replication</name> <value>1</value>

> </property>
>         <property> <name>dfs.permissions</name> <value>false</value>

> </property>
>         <property> <name>dfs.name.dir</name> 
> <value>/tmp/data/dfs/name/</value> </property>
>         <property> <name>dfs.data.dir</name> 
> <value>/tmp/data/dfs/data/</value> </property>
>     <property> <name>dfs.webhdfs.enabled</name> <value>true</value>

> </property>
> </configuration>
>
>
>
> core-site.xml and hdfs-site.xml of the target host:
>
> # cat Programs/hadoop/etc/hadoop/core-site.xml
> <?xml version="1.0" encoding="UTF-8"?>
> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
>
> <!-- Put site-specific property overrides in this file. -->
> <configuration>
>   <property> <name>fs.default.name</name> 
> <value>hdfs://172.16.100.5:9000</value> </property>
>   <property> <name>hadoop.tmp.dir</name> 
> <value>/tmp/hadoop-temp</value> </property>
> <property><name>hadoop.proxyuser.root.hosts</name><value>*</value></property>
> <property><name>hadoop.proxyuser.root.groups</name><value>*</value></property>
>   <property> <name>dfs.permissions</name> <value>false</value>
</property>
> </configuration>
> # cat Programs/hadoop/etc/hadoop/hdfs-site.xml
> <?xml version="1.0" encoding="UTF-8"?>
> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
>
> <!-- Put site-specific property overrides in this file. -->
> <configuration>
>         <property> <name>dfs.replication</name> <value>1</value>

> </property>
>         <property> <name>dfs.permissions</name> <value>false</value>

> </property>
>         <property> <name>dfs.name.dir</name> 
> <value>/tmp/data/dfs/name/</value> </property>
>         <property> <name>dfs.data.dir</name> 
> <value>/tmp/data/dfs/data/</value> </property>
>     <property> <name>dfs.webhdfs.enabled</name> <value>true</value>

> </property>
> </configuration>
>
>
> -- 
> Thanks,

-- 
Thanks,


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