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Memory Leak while using LocalJobRunner - MapReduce - [mail # user]
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...Hi, I have an application which uses LocalJobRunner to process MR Jobs. From the heap dump of my application I can see multiple object with Name $Proxy90; happens to be created b...
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Author: Subroto,
2013-05-17, 14:39
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Re: S3N copy creating recursive folders - MapReduce - [mail # user]
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...Hi George, Tried as per your suggestion: hadoop fs -cp "s3n://acessKey:[EMAIL PROTECTED]et/srcData/" /test/srcData/ Still facing the same problem :-( : cp: java.io.I...
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Author: Subroto,
2013-03-07, 08:33
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Re: S3N copy creating recursive folders - MapReduce - [mail # user]
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...Hi, Its not because there are too many recursive folders in S3 bucket; in-fact there is no recursive folder in the source. If I list the S3 bucket with Native S3 tools I can find a fil...
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Author: Subroto,
2013-03-05, 14:37
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Socket does not have a channel - MapReduce - [mail # user]
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...Hi java.lang.IllegalStateException: Socket Socket[addr=/10.86.203.112,port=1004,localport=35170] does not have a channel at com.google.common.base.Preconditions.checkState(Preconditio...
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Author: Subroto,
2013-03-05, 08:46
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Unable to access HBase from a Mapper - MapReduce - [mail # user]
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...Hi, I have an MapReduce job which uses does some operation of reading from HBase tables. I have configured the cluster in Secure Mode including Secure HBase. I am running the Job...
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Author: Subroto,
2012-11-14, 16:14
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Re: java.lang.NoClassDefFoundError: org/apache/hadoop/mapreduce/v2/app/MRAppMaste - MapReduce - [mail # user]
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...Hi Andre, Yups the problem got solved. The problem I was facing was that JobClient code of my application was messing the Hadoop Property:yarn.application.classpath. After settin...
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Author: Subroto,
2012-07-11, 13:46
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Map Task Hanging for long time for commit - MapReduce - [mail # user]
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...I am using 0.20.2 hadoop and I find many of my Tasks are getting timed out. The task Time out is set to 10 minutes(default) : Caused by: java.lang.RuntimeException: tasktracker: ...
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Author: Subroto,
2012-07-04, 09:01
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Calculation of BYTES_READ counter in TrackedRecordReader can give incorrect result - MapReduce - [mail # user]
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...Hi, I have a RecordReader implementation which reads the records asynchronously and caches them in memory(In a BlockingQueue). When TrackingRecordReader calls for next Record, th...
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Author: Subroto,
2012-06-21, 22:53
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JobClient is waiting on ipc.client.connect.max.retries.on.timeouts once Application Master has gone down - MapReduce - [mail # user]
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...Hi, I am facing a problem where the AM goes done once it is finished but, the API keeps on polling to AM for JobStatus/Report and faces SocketTimeout By default ipc.client...
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Author: Subroto,
2012-06-07, 12:45
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Possible deadlock in the JobClient - MapReduce - [mail # user]
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...Hi, I think I met with a possible deadlock situation. Not sure whether it is actually a deadlock or not :-) Here is my scenario: Run a Job and call JobClient.monitorAndPrin...
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Author: Subroto,
2012-06-06, 09:47
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