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From Stanley Shi <s...@gopivotal.com>
Subject Re: can't copy between hdfs
Date Mon, 14 Apr 2014 05:40:59 GMT
Not sure if this helps but copyFromLocal is just to write data from the
current client machine to hdfs; but distcp will start a mapreduce job to do
the copy, that means the NodeManager/taskTracker machine need to write data
to the remote hdfs cluster;


Regards,
*Stanley Shi,*



On Sun, Apr 13, 2014 at 9:44 PM, xeon <xeonmailinglist@gmail.com> wrote:

>  For curiosity, I can copy a file from host1 to host2  with the
> copyFromLocal. I cannot do this with distcp. I think the problem is related
> to the 'distcp' command. Maybe it is a question of permissions I already
> set "<property> <name>dfs.permissions</name> <value>false</value>
> </property>
> " in the hdfs-site.xml and core-site. Any suggestion to fix this error?
>
> WorkGroup0000$ hdfs dfs -copyFromLocal setup.py 'hdfs://WorkGroup0010:9000/'
> <<- this command works
> WorkGroup0000$ hadoop distcp hdfs://WorkGroup0000:9000/wiki
> hdfs://WorkGroup0010:9000/wiki <<- this command doesn't work
>
>
> On 04/13/2014 11:43 AM, xeon wrote:
>
> 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=/172.16.100.8:50010remote=/
> 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=/172.16.100.8:50010remote=/
> 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,
>
>
> --
> Thanks,
>
>

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