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From Mohit Anchlia <mohitanch...@gmail.com>
Subject Re: DFSClient error
Date Sun, 29 Apr 2012 20:05:41 GMT
I even tried to lower number of parallel jobs even further but I still get
these errors. Any suggestion on how to troubleshoot this issue would be
very helpful. Should I run hadoop fsck? How do people troubleshoot such
issues?? Does it sound like a bug?

2012-04-27 14:37:42,921 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
- 1 map-reduce job(s) waiting for submission.
2012-04-27 14:37:42,931 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Exception in createBlockOutputStream 125.18.62.199:50010java.io.EOFException
2012-04-27 14:37:42,932 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Abandoning block blk_6343044536824463287_24619
2012-04-27 14:37:42,932 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Excluding datanode 125.18.62.199:50010
2012-04-27 14:37:42,935 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Exception in createBlockOutputStream 125.18.62.204:50010java.io.EOFException
2012-04-27 14:37:42,935 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Abandoning block blk_2837215798109471362_24620
2012-04-27 14:37:42,936 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Excluding datanode 125.18.62.204:50010
2012-04-27 14:37:42,937 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
- 1 map-reduce job(s) waiting for submission.
2012-04-27 14:37:42,939 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Exception in createBlockOutputStream 125.18.62.198:50010java.io.EOFException
2012-04-27 14:37:42,939 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Abandoning block blk_2223489090936415027_24620
2012-04-27 14:37:42,940 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Excluding datanode 125.18.62.198:50010
2012-04-27 14:37:42,943 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Exception in createBlockOutputStream 125.18.62.197:50010java.io.EOFException
2012-04-27 14:37:42,943 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Abandoning block blk_1265169201875643059_24620
2012-04-27 14:37:42,944 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Excluding datanode 125.18.62.197:50010
2012-04-27 14:37:42,945 [Thread-5] WARN  org.apache.hadoop.hdfs.DFSClient -
DataStreamer Exception: java.io.IOException: Unable to create new block.
        at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:3446)
        at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2100(DFSClient.java:2627)
        at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2822)
2012-04-27 14:37:42,945 [Thread-5] WARN  org.apache.hadoop.hdfs.DFSClient -
Error Recovery for block blk_1265169201875643059_24620 bad datanode[0]
nodes == null
2012-04-27 14:37:42,945 [Thread-5] WARN  org.apache.hadoop.hdfs.DFSClient -
Could not get block locations. Source file
"/tmp/hadoop-hadoop/mapred/staging/hadoop/.staging/job_201204261707_0411/job.jar"
- Aborting...
2012-04-27 14:37:42,945 [Thread-4] INFO  org.apache.hadoop.mapred.JobClient
- Cleaning up the staging area
hdfs://dsdb1:54310/tmp/hadoop-hadoop/mapred/staging/hadoop/.staging/job_201204261707_0411
2012-04-27 14:37:42,945 [Thread-4] ERROR
org.apache.hadoop.security.UserGroupInformation -
PriviledgedActionException as:hadoop (auth:SIMPLE)
cause:java.io.EOFException
2012-04-27 14:37:42,996 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Exception in createBlockOutputStream
125.18.62.200:50010java.io.IOException: Bad connect ack with
firstBadLink as
125.18.62.198:50010
2012-04-27 14:37:42,996 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Abandoning block blk_-7583284266913502018_24621
2012-04-27 14:37:42,997 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Exception in createBlockOutputStream 125.18.62.198:50010java.io.EOFException
2012-04-27 14:37:42,997 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Abandoning block blk_4207260385919079785_24622
2012-04-27 14:37:42,998 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Excluding datanode 125.18.62.198:50010
2012-04-27 14:37:43,000 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Excluding datanode 125.18.62.198:50010
2012-04-27 14:37:43,002 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Exception in createBlockOutputStream 125.18.62.197:50010java.io.EOFException
2012-04-27 14:37:43,002 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Abandoning block blk_-2859304645525022496_24624
2012-04-27 14:37:43,003 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Excluding datanode 125.18.62.197:50010
2012-04-27 14:37:43,003 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Exception in createBlockOutputStream 125.18.62.198:50010java.io.EOFException
2012-04-27 14:37:43,004 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Abandoning block blk_-5091361633954135154_24622
2012-04-27 14:37:43,004 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Exception in createBlockOutputStream 125.18.62.199:50010java.io.EOFException
2012-04-27 14:37:43,004 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Abandoning block blk_-1445223397912067500_24624
2012-04-27 14:37:43,005 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Excluding datanode 125.18.62.198:50010
2012-04-27 14:37:43,005 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Excluding datanode 125.18.62.199:50010
2012-04-27 14:37:43,006 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Exception in createBlockOutputStream 125.18.62.204:50010java.io.EOFException
2012-04-27 14:37:43,006 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Abandoning block blk_4137744363907213546_24624
2012-04-27 14:37:43,007 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Excluding datanode 125.18.62.204:50010
2012-04-27 14:37:43,008 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Exception in createBlockOutputStream 125.18.62.204:50010java.io.EOFException
2012-04-27 14:37:43,008 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Abandoning block blk_4553692535678376597_24624
2012-04-27 14:37:43,008 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Exception in createBlockOutputStream 125.18.62.197:50010java.io.EOFException
2012-04-27 14:37:43,008 [Thread-5] INFO  org.apache.hadoop.hdfs.DFSClient -
Abandoning block blk_-7407489373889053706_24624


On Fri, Apr 27, 2012 at 3:45 PM, Mohit Anchlia <mohitanchlia@gmail.com>wrote:

> After all the jobs fail I can't run anything. Once I restart the cluster I
> am able to run other jobs with no problems, hadoop fs and other io
> intensive jobs run just fine.
>
>
> On Fri, Apr 27, 2012 at 3:12 PM, John George <johngeo@yahoo-inc.com>wrote:
>
>> Can you run a regular 'hadoop fs' (put orls or get) command?
>> If yes, how about a wordcount example?
>> '<path>/hadoop jar <path>hadoop-*examples*.jar wordcount input output'
>>
>>
>> -----Original Message-----
>> From: Mohit Anchlia <mohitanchlia@gmail.com>
>> Reply-To: "common-user@hadoop.apache.org" <common-user@hadoop.apache.org>
>> Date: Fri, 27 Apr 2012 14:36:49 -0700
>> To: "common-user@hadoop.apache.org" <common-user@hadoop.apache.org>
>> Subject: Re: DFSClient error
>>
>> >I even tried to reduce number of jobs but didn't help. This is what I
>> see:
>> >
>> >datanode logs:
>> >
>> >Initializing secure datanode resources
>> >Successfully obtained privileged resources (streaming port =
>> >ServerSocket[addr=/0.0.0.0,localport=50010] ) (http listener port =
>> >sun.nio.ch.ServerSocketChannelImpl[/0.0.0.0:50075])
>> >Starting regular datanode initialization
>> >26/04/2012 17:06:51 9858 jsvc.exec error: Service exit with a return
>> value
>> >of 143
>> >
>> >userlogs:
>> >
>> >2012-04-26 19:35:22,801 WARN
>> >org.apache.hadoop.io.compress.snappy.LoadSnappy: Snappy native library is
>> >available
>> >2012-04-26 19:35:22,801 INFO
>> >org.apache.hadoop.io.compress.snappy.LoadSnappy: Snappy native library
>> >loaded
>> >2012-04-26 19:35:22,808 INFO
>> >org.apache.hadoop.io.compress.zlib.ZlibFactory: Successfully loaded &
>> >initialized native-zlib library
>> >2012-04-26 19:35:22,903 INFO org.apache.hadoop.hdfs.DFSClient: Failed to
>> >connect to /125.18.62.197:50010, add to deadNodes and continue
>> >java.io.EOFException
>> >        at java.io.DataInputStream.readShort(DataInputStream.java:298)
>> >        at
>>
>> >org.apache.hadoop.hdfs.DFSClient$RemoteBlockReader.newBlockReader(DFSClien
>> >t.java:1664)
>> >        at
>>
>> >org.apache.hadoop.hdfs.DFSClient$DFSInputStream.getBlockReader(DFSClient.j
>> >ava:2383)
>> >        at
>>
>> >org.apache.hadoop.hdfs.DFSClient$DFSInputStream.blockSeekTo(DFSClient.java
>> >:2056)
>> >        at
>> >org.apache.hadoop.hdfs.DFSClient$DFSInputStream.read(DFSClient.java:2170)
>> >        at java.io.DataInputStream.read(DataInputStream.java:132)
>> >        at
>>
>> >org.apache.hadoop.io.compress.DecompressorStream.getCompressedData(Decompr
>> >essorStream.java:97)
>> >        at
>>
>> >org.apache.hadoop.io.compress.DecompressorStream.decompress(DecompressorSt
>> >ream.java:87)
>> >        at
>>
>> >org.apache.hadoop.io.compress.DecompressorStream.read(DecompressorStream.j
>> >ava:75)
>> >        at java.io.InputStream.read(InputStream.java:85)
>> >        at
>> >org.apache.hadoop.util.LineReader.readDefaultLine(LineReader.java:205)
>> >        at
>> org.apache.hadoop.util.LineReader.readLine(LineReader.java:169)
>> >        at
>>
>> >org.apache.hadoop.mapreduce.lib.input.LineRecordReader.nextKeyValue(LineRe
>> >cordReader.java:114)
>> >        at org.apache.pig.builtin.PigStorage.getNext(PigStorage.java:109)
>> >        at
>>
>> >org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordRead
>> >er.nextKeyValue(PigRecordReader.java:187)
>> >        at
>>
>> >org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapT
>> >ask.java:456)
>> >        at
>> >org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
>> >        at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143)
>> >        at
>> org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:647)
>> >        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:323)
>> >        at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
>> >        at java.security.AccessController.doPrivileged(Native Method)
>> >        at javax.security.auth.Subject.doAs(Subject.java:396)
>> >        at
>>
>> >org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.
>> >java:1157)
>> >        at org.apache.hadoop.mapred.Child.main(Child.java:264)
>> >2012-04-26 19:35:22,906 INFO org.apache.hadoop.hdfs.DFSClient: Failed to
>> >connect to /125.18.62.204:50010, add to deadNodes and continue
>> >java.io.EOFException
>> >
>> >namenode logs:
>> >
>> >2012-04-26 16:12:53,562 INFO org.apache.hadoop.mapred.JobTracker: Job
>> >job_201204261140_0244 added successfully for user 'hadoop' to queue
>> >'default'
>> >2012-04-26 16:12:53,562 INFO org.apache.hadoop.mapred.JobTracker:
>> >Initializing job_201204261140_0244
>> >2012-04-26 16:12:53,562 INFO org.apache.hadoop.mapred.AuditLogger:
>> >USER=hadoop  IP=125.18.62.196        OPERATION=SUBMIT_JOB
>> >TARGET=job_201204261140_0244    RESULT=SUCCESS
>> >2012-04-26 16:12:53,562 INFO org.apache.hadoop.mapred.JobInProgress:
>> >Initializing job_201204261140_0244
>> >2012-04-26 16:12:53,581 INFO org.apache.hadoop.hdfs.DFSClient: Exception
>> >in
>> >createBlockOutputStream 125.18.62.198:50010 java.io.IOException: Bad
>> >connect ack with firstBadLink as 125.18.62.197:50010
>> >2012-04-26 16:12:53,581 INFO org.apache.hadoop.hdfs.DFSClient: Abandoning
>> >block blk_2499580289951080275_22499
>> >2012-04-26 16:12:53,582 INFO org.apache.hadoop.hdfs.DFSClient: Excluding
>> >datanode 125.18.62.197:50010
>> >2012-04-26 16:12:53,594 INFO org.apache.hadoop.mapred.JobInProgress:
>> >jobToken generated and stored with users keys in
>> >/data/hadoop/mapreduce/job_201204261140_0244/jobToken
>> >2012-04-26 16:12:53,598 INFO org.apache.hadoop.mapred.JobInProgress:
>> Input
>> >size for job job_201204261140_0244 = 73808305. Number of splits = 1
>> >2012-04-26 16:12:53,598 INFO org.apache.hadoop.mapred.JobInProgress:
>> >tip:task_201204261140_0244_m_000000 has split on node:/default-rack/
>> >dsdb4.corp.intuit.net
>> >2012-04-26 16:12:53,598 INFO org.apache.hadoop.mapred.JobInProgress:
>> >tip:task_201204261140_0244_m_000000 has split on node:/default-rack/
>>  >dsdb5.corp.intuit.net
>> >2012-04-26 16:12:53,598 INFO org.apache.hadoop.mapred.JobInProgress:
>> >job_201204261140_0244 LOCALITY_WAIT_FACTOR=0.4
>> >2012-04-26 16:12:53,598 INFO org.apache.hadoop.mapred.JobInProgress: Job
>> >job_201204261140_0244 initialized successfully with 1 map tasks and 0
>> >reduce tasks.
>> >
>> >On Fri, Apr 27, 2012 at 7:50 AM, Mohit Anchlia
>> ><mohitanchlia@gmail.com>wrote:
>> >
>> >>
>> >>
>> >>  On Thu, Apr 26, 2012 at 10:24 PM, Harsh J <harsh@cloudera.com> wrote:
>> >>
>> >>> Is only the same IP printed in all such messages? Can you check the
DN
>> >>> log in that machine to see if it reports any form of issues?
>> >>>
>> >>> All IPs were logged with this message
>> >>
>> >>
>> >>> Also, did your jobs fail or kept going despite these hiccups? I notice
>> >>> you're threading your clients though (?), but I can't tell if that may
>> >>> cause this without further information.
>> >>>
>> >>> It started with this error message and slowly all the jobs died with
>> >> "shortRead" errors.
>> >> I am not sure about threading. I am using pig script to read .gz file
>> >>
>> >>
>> >>> On Fri, Apr 27, 2012 at 5:19 AM, Mohit Anchlia <
>> mohitanchlia@gmail.com>
>> >>> wrote:
>> >>> > I had 20 mappers in parallel reading 20 gz files and each file
>> around
>> >>> > 30-40MB data over 5 hadoop nodes and then writing to the analytics
>> >>> > database. Almost midway it started to get this error:
>> >>> >
>> >>> >
>> >>> > 2012-04-26 16:13:53,723 [Thread-8] INFO
>> >>> org.apache.hadoop.hdfs.DFSClient -
>> >>> > Exception in createBlockOutputStream
>> >>> > 17.18.62.192:50010java.io.IOException: Bad connect ack with
>> >>>  > firstBadLink as
>> >>> > 17.18.62.191:50010
>> >>> >
>> >>> > I am trying to look at the logs but doesn't say much. What could
be
>> >>>the
>> >>> > reason? We are in pretty closed reliable network and all machines
>> are
>> >>> up.
>> >>>
>> >>>
>> >>>
>> >>> --
>> >>> Harsh J
>> >>>
>> >>
>> >>
>>
>>
>

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