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From Colin Kincaid Williams <disc...@uw.edu>
Subject Re: distcp failures and errors
Date Wed, 23 Mar 2016 16:42:12 GMT
I've already attempted with -pb missing,and it doesn't work. I'm going
to attempt using webdfs instead of hftp, based on another suggestion.

On Wed, Mar 23, 2016 at 3:04 PM, Namikaze Minato <lloydsensei@gmail.com> wrote:
> Which cluster are you issuing the command on?
> This command:
> hadoop distcp -D mapreduce.job.queuename=search -D
> mapreduce.job.maxtaskfailures.per.tracker=1 -pb
> hftp://cdh4source-cluster:50070/backups/HbaseTableCopy
> hdfs://cdh5dest-cluster/user/colin.williams/hbase/
>
> The checksum issue is clearly linked to the "-pb" missing in that run.
> For the EOF error, I don't know yet.
>
> Can you try this command please?
>
> hadoop distcp  -pb -D mapreduce.job.queuename=search -D
> mapreduce.job.maxtaskfailures.per.tracker=1
> hftp://cdh4source-cluster:50070/backups/HbaseTableCopy
> /user/colin.williams/hbase/
>
> Regards,
> LLoyd
>
> On 22 March 2016 at 21:38, Colin Kincaid Williams <discord@uw.edu> wrote:
>>
>> So far I'm on another Hadoop wild goose chase. I made another attempt
>> this time with the -Ddfs.checksum.type=CRC32 option set. I had a look
>> at the hdfs data node logs on both the cdh5 receiving cluster
>> datanode, and the cdh4 source cluster datanode.
>>
>> Here are the logs from the cdh5 datanode:
>>
>> 2016-03-21 01:40:21,719 ERROR
>> org.apache.hadoop.hdfs.server.datanode.DataNode:
>> us3sm2hb027r09.comp.prod.local:50010:DataXceiver error processing
>> WRITE_BLOCK operation src: /10.51.28.155:40297 dst:
>> /10.51.28.172:50010
>>
>> 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:468)
>>
>> at
>> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:772)
>>
>> at
>> org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:724)
>>
>> at
>> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:126)
>>
>> at
>> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:72)
>>
>> at
>> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:226)
>>
>> at java.lang.Thread.run(Thread.java:745)
>>
>> getNumBytes() = 218078234
>>
>> getBytesOnDisk() = 218078234
>>
>> getVisibleLength()= 218078234
>>
>> getVolume() = /data8/dfs/current
>>
>> getBlockFile() =
>>
>> /data8/dfs/current/BP-1256332750-10.51.28.140-1408661299811/current/rbw/blk_1123289423
>>
>> bytesAcked=218078234
>>
>> bytesOnDisk=218078234
>>
>> getNumBytes() = 218078234
>>
>> getBytesOnDisk() = 218078234
>>
>> getVisibleLength()= 218078234
>>
>> getVolume() = /data8/dfs/current
>>
>> getBlockFile() =
>>
>> /data8/dfs/current/BP-1256332750-10.51.28.140-1408661299811/current/rbw/blk_1123289423
>>
>> recoveryId=49653218
>>
>> original=ReplicaBeingWritten, blk_1123289423_49566579, RBW
>>
>> getNumBytes() = 218078234
>>
>> getBytesOnDisk() = 218078234
>>
>> getVisibleLength()= 218078234
>>
>> getVolume() = /data8/dfs/current
>>
>> getBlockFile() =
>>
>> /data8/dfs/current/BP-1256332750-10.51.28.140-1408661299811/current/rbw/blk_1123289423
>>
>> bytesAcked=218078234
>>
>> bytesOnDisk=218078234
>>
>> Then I connect to the cdh4 datanode and looked at it's corresponding logs
>> :
>>
>> 2016-03-21 01:40:20,194 INFO
>> org.apache.hadoop.hdfs.server.datanode.DataNode.clienttrace: src:
>> /10.51.28.171:39911, dest: /10.51.28.155:50010, bytes: 6546, op:
>> HDFS_WRITE, cliID: DFSClient_NONMAPREDUCE_-1383949982_1, offset: 0,
>> srvID: 25cc228e-1f4f-4eae-9c70-caad9b24b95b, blockid:
>> BP-1256332750-10.51.28.140-1408661299811:blk_1123360423_49637579,
>> duration: 2283093
>> 2016-03-21 01:40:20,194 INFO
>> org.apache.hadoop.hdfs.server.datanode.DataNode: PacketResponder:
>> BP-1256332750-10.51.28.140-1408661299811:blk_1123360423_49637579,
>> type=HAS_DOWNSTREAM_IN_PIPELINE terminating
>> 2016-03-21 01:40:21,718 INFO
>> org.apache.hadoop.hdfs.server.datanode.DataNode: Exception for
>> BP-1256332750-10.51.28.140-1408661299811:blk_1123359613_49636769
>> 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:468)
>>   at
>> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:772)
>>   at
>> org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:724)
>>   at
>> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:126)
>>   at
>> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:72)
>>   at
>> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:226)
>>   at java.lang.Thread.run(Thread.java:745)
>> 2016-03-21 01:40:21,718 INFO
>> org.apache.hadoop.hdfs.server.datanode.DataNode: Exception for
>> BP-1256332750-10.51.28.140-1408661299811:blk_1123289423_49566579
>> 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:468)
>>   at
>> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:772)
>>   at
>> org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:724)
>>   at
>> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:126)
>>   at
>> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:72)
>>   at
>> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:226)
>>   at java.lang.Thread.run(Thread.java:745)
>> 2016-03-21 01:40:21,718 INFO
>> org.apache.hadoop.hdfs.server.datanode.DataNode: PacketResponder:
>> BP-1256332750-10.51.28.140-1408661299811:blk_1123359613_49636769,
>> type=HAS_DOWNSTREAM_IN_PIPELINE: Thread is interrupted.
>> 2016-03-21 01:40:21,718 INFO
>> org.apache.hadoop.hdfs.server.datanode.DataNode: PacketResponder:
>> BP-1256332750-10.51.28.140-1408661299811:blk_1123359613_49636769,
>> type=HAS_DOWNSTREAM_IN_PIPELINE terminating
>> 2016-03-21 01:40:21,718 INFO
>> org.apache.hadoop.hdfs.server.datanode.DataNode: PacketResponder:
>> BP-1256332750-10.51.28.140-1408661299811:blk_1123289423_49566579,
>> type=HAS_DOWNSTREAM_IN_PIPELINE: Thread is interrupted.
>> 2016-03-21 01:40:21,718 INFO
>> org.apache.hadoop.hdfs.server.datanode.DataNode: PacketResponder:
>> BP-1256332750-10.51.28.140-1408661299811:blk_1123289423_49566579,
>> type=HAS_DOWNSTREAM_IN_PIPELINE terminating
>> 2016-03-21 01:40:21,718 INFO
>> org.apache.hadoop.hdfs.server.datanode.DataNode: opWriteBlock
>> BP-1256332750-10.51.28.140-1408661299811:blk_1123359613_49636769
>> received exception java.io.IOException: Premature EOF from inputStream
>> 2016-03-21 01:40:21,718 INFO
>> org.apache.hadoop.hdfs.server.datanode.DataNode: opWriteBlock
>> BP-1256332750-10.51.28.140-1408661299811:blk_1123289423_49566579
>> received exception java.io.IOException: Premature EOF from inputStream
>> 2016-03-21 01:40:21,718 ERROR
>> org.apache.hadoop.hdfs.server.datanode.DataNode:
>> us3sm2hb010r07.comp.prod.local:50010:DataXceiver error processing
>> WRITE_BLOCK operation  src: /10.51.28.155:40392 dst:
>> /10.51.28.155:50010
>> 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:468)
>>   at
>> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:772)
>>   at
>> org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:724)
>>   at
>> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:126)
>>   at
>> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:72)
>>   at
>> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:226)
>>   at java.lang.Thread.run(Thread.java:745)
>> 2016-03-21 01:40:21,718 ERROR
>> org.apache.hadoop.hdfs.server.datanode.DataNode:
>> us3sm2hb010r07.comp.prod.local:50010:DataXceiver error processing
>> WRITE_BLOCK operation  src: /10.51.28.155:49016 dst:
>> /10.51.28.155:50010
>> 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:468)
>>   at
>> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:772)
>>   at
>> org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:724)
>>   at
>> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:126)
>>   at
>> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:72)
>>   at
>> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:226)
>>   at java.lang.Thread.run(Thread.java:745)
>> 2016-03-21 01:40:28,272 INFO
>> org.apache.hadoop.hdfs.server.datanode.DataNode: Receiving
>> BP-1256332750-10.51.28.140-1408661299811:blk_1123360428_49637584 src:
>> /10.51.28.155:40588 dest: /10.51.28.155:50010
>>
>>
>> On Tue, Mar 22, 2016 at 1:11 AM, Colin Kincaid Williams <discord@uw.edu>
>> wrote:
>> > Almost forgot to include the final failure:
>> >
>> >
>> > 16/03/21 18:50:44 INFO mapreduce.Job: Job job_1453754997414_337405
>> > failed with state FAILED due to: Task failed
>> > task_1453754997414_337405_m_000007
>> > Job failed as tasks failed. failedMaps:1 failedReduces:0
>> >
>> > 16/03/21 18:50:44 INFO mapreduce.Job: Counters: 9
>> >         Job Counters
>> >                 Failed map tasks=22
>> >                 Killed map tasks=26
>> >                 Launched map tasks=48
>> >                 Other local map tasks=48
>> >                 Total time spent by all maps in occupied slots
>> > (ms)=182578858
>> >                 Total time spent by all reduces in occupied slots (ms)=0
>> >                 Total time spent by all map tasks (ms)=182578858
>> >                 Total vcore-seconds taken by all map tasks=182578858
>> >                 Total megabyte-seconds taken by all map
>> > tasks=186960750592
>> > 16/03/21 18:50:44 ERROR tools.DistCp: Exception encountered
>> > java.io.IOException: DistCp failure: Job job_1453754997414_337405 has
>> > failed: Task failed task_1453754997414_337405_m_000007
>> > Job failed as tasks failed. failedMaps:1 failedReduces:0
>> >
>> >         at org.apache.hadoop.tools.DistCp.execute(DistCp.java:175)
>> >         at org.apache.hadoop.tools.DistCp.run(DistCp.java:121)
>> >         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
>> >         at org.apache.hadoop.tools.DistCp.main(DistCp.java:401)
>> >
>> >
>> > On Tue, Mar 22, 2016 at 12:58 AM, Colin Kincaid Williams
>> > <discord@uw.edu> wrote:
>> >> I'm trying to copy data between two clusters with
>> >>
>> >> hadoop version
>> >> Hadoop 2.0.0-cdh4.1.3
>> >> Subversion
>> >> file:///data/1/jenkins/workspace/generic-package-rhel64-6-0/topdir/BUILD/hadoop-2.0.0-cdh4.1.3/src/hadoop-common-project/hadoop-common
>> >> -r dbc7a60f9a798ef63afb7f5b723dc9c02d5321e1
>> >> Compiled by jenkins on Sat Jan 26 16:46:14 PST 2013
>> >> From source with checksum ad1ed6a3ede2e0e9c39b052bbc76c189
>> >>
>> >> and
>> >>
>> >> hadoop version
>> >> Hadoop 2.5.0-cdh5.3.0
>> >> Subversion http://github.com/cloudera/hadoop -r
>> >> f19097cda2536da1df41ff6713556c8f7284174d
>> >> Compiled by jenkins on 2014-12-17T03:05Z
>> >> Compiled with protoc 2.5.0
>> >> From source with checksum 9c4267e6915cf5bbd4c6e08be54d54e0
>> >> This command was run using
>> >> /usr/lib/hadoop/hadoop-common-2.5.0-cdh5.3.0.jar
>> >>
>> >> The command I'm using to do so is:
>> >>
>> >> hadoop distcp -D mapreduce.job.queuename=search -D
>> >> mapreduce.job.maxtaskfailures.per.tracker=1 -pb
>> >> hftp://cdh4source-cluster:50070/backups/HbaseTableCopy
>> >> hdfs://cdh5dest-cluster/user/colin.williams/hbase/
>> >>
>> >> I've also tried it without the -pb and -D
>> >> mapreduce.job.maxtaskfailures.per.tracker=1 options. All my attempts
>> >> fail, and the command prints out various errors during the attempts:
>> >>
>> >> Error: java.io.IOException: File copy failed:
>> >> hftp://cdh4source-cluster:50070/backups/HbaseTableCopy/part-m-00018
>> >> -->
>> >> hdfs://cdh5dest-cluster/user/colin.williams/hbase/HbaseTableCopy/part-m-00018
>> >>         at
>> >> org.apache.hadoop.tools.mapred.CopyMapper.copyFileWithRetry(CopyMapper.java:284)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.CopyMapper.map(CopyMapper.java:252)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.CopyMapper.map(CopyMapper.java:50)
>> >>         at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
>> >>         at
>> >> org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:784)
>> >>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
>> >>         at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168)
>> >>         at java.security.AccessController.doPrivileged(Native Method)
>> >>         at javax.security.auth.Subject.doAs(Subject.java:415)
>> >>         at
>> >> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1642)
>> >>         at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163)
>> >> Caused by: java.io.IOException: Couldn't run retriable-command:
>> >> Copying
>> >> hftp://cdh4source-cluster:50070/backups/HbaseTableCopy/part-m-00018
>> >> to
>> >> hdfs://cdh5dest-cluster/user/colin.williams/hbase/HbaseTableCopy/part-m-00018
>> >>         at
>> >> org.apache.hadoop.tools.util.RetriableCommand.execute(RetriableCommand.java:101)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.CopyMapper.copyFileWithRetry(CopyMapper.java:280)
>> >>         ... 10 more
>> >> Caused by: java.io.IOException: Check-sum mismatch between
>> >> hftp://cdh4source-cluster:50070/backups/HbaseTableCopy/part-m-00018
>> >> and
>> >> hdfs://cdh5dest-cluster/user/colin.williams/hbase/.distcp.tmp.attempt_1453754997414_337405_m_000007_0.
>> >>         at
>> >> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.compareCheckSums(RetriableFileCopyCommand.java:211)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.doCopy(RetriableFileCopyCommand.java:131)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.doExecute(RetriableFileCopyCommand.java:100)
>> >>         at
>> >> org.apache.hadoop.tools.util.RetriableCommand.execute(RetriableCommand.java:87)
>> >>         ... 11 more
>> >>
>> >>  OR
>> >>
>> >> 16/03/21 17:30:47 INFO mapreduce.Job: Task Id :
>> >> attempt_1453754997414_337405_m_000001_0, Status : FAILED
>> >> Error: java.io.IOException: File copy failed:
>> >> hftp://cdh4source-cluster:50070/backups/HbaseTableCopy/part-m-00004
>> >> -->
>> >> hdfs://cdh5dest-cluster/user/colin.williams/hbase/HbaseTableCopy/part-m-00004
>> >>         at
>> >> org.apache.hadoop.tools.mapred.CopyMapper.copyFileWithRetry(CopyMapper.java:284)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.CopyMapper.map(CopyMapper.java:252)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.CopyMapper.map(CopyMapper.java:50)
>> >>         at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
>> >>         at
>> >> org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:784)
>> >>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
>> >>         at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168)
>> >>         at java.security.AccessController.doPrivileged(Native Method)
>> >>         at javax.security.auth.Subject.doAs(Subject.java:415)
>> >>         at
>> >> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1642)
>> >>         at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163)
>> >> Caused by: java.io.IOException: Couldn't run retriable-command:
>> >> Copying
>> >> hftp://cdh4source-cluster:50070/backups/HbaseTableCopy/part-m-00004
>> >> to
>> >> hdfs://cdh5dest-cluster/user/colin.williams/hbase/HbaseTableCopy/part-m-00004
>> >>         at
>> >> org.apache.hadoop.tools.util.RetriableCommand.execute(RetriableCommand.java:101)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.CopyMapper.copyFileWithRetry(CopyMapper.java:280)
>> >>         ... 10 more
>> >> Caused by:
>> >> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand$CopyReadException:
>> >> java.io.IOException: Got EOF but currentPos = 916783104 < filelength
=
>> >> 21615406422
>> >>         at
>> >> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.readBytes(RetriableFileCopyCommand.java:289)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.copyBytes(RetriableFileCopyCommand.java:257)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.copyToFile(RetriableFileCopyCommand.java:184)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.doCopy(RetriableFileCopyCommand.java:124)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.doExecute(RetriableFileCopyCommand.java:100)
>> >>         at
>> >> org.apache.hadoop.tools.util.RetriableCommand.execute(RetriableCommand.java:87)
>> >>         ... 11 more
>> >> Caused by: java.io.IOException: Got EOF but currentPos = 916783104 <
>> >> filelength = 21615406422
>> >>         at
>> >> org.apache.hadoop.hdfs.web.ByteRangeInputStream.update(ByteRangeInputStream.java:173)
>> >>         at
>> >> org.apache.hadoop.hdfs.web.ByteRangeInputStream.read(ByteRangeInputStream.java:188)
>> >>         at java.io.DataInputStream.read(DataInputStream.java:100)
>> >>         at
>> >> org.apache.hadoop.tools.util.ThrottledInputStream.read(ThrottledInputStream.java:80)
>> >>         at
>> >> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.readBytes(RetriableFileCopyCommand.java:284)
>> >>         ... 16 more
>> >>
>> >>
>> >> Then I see a checksum issue and the EOF issue. I've also run hadoop
>> >> fsck on the source files, and it doesn't report any errors. I see many
>> >> Jira issues and questions regarding DistCP. Can I get some help with
>> >> this?
>>
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