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Hadoop 2.0.4: Unable to load native-hadoop library for your platform - MapReduce - [mail # user]
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...Hi I downloaded hadoop 2.0.4 and keep getting these errors from hadoop cli and MapReduce task logs 13/05/24 14:34:17 WARN util.NativeCodeLoader: Unable to load native-hadoop library fo...
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Author: Ben Kim,
2013-05-24, 05:35
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Re: issue with hadoop mapreduce using same job.jar - MapReduce - [mail # user]
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...OK nevermind. the problem was that my mate put the test.jar in the hadoop/lib folder... :( On Wed, Mar 13, 2013 at 1:22 AM, Ben Kim wrote: *Benjamin Kim* *be...
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Author: Ben Kim,
2013-03-12, 16:23
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Re: issue with hadoop mapreduce using same job.jar - MapReduce - [mail # user]
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...Things I tried so far without a luck - restart the hadoop - sync && echo 3 > /proc/sys/vm/drop_caches - clear namenode java cache using jcontrol &n...
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Author: Ben Kim,
2013-03-12, 16:22
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issue with hadoop mapreduce using same job.jar - MapReduce - [mail # user]
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...Hi there It looks like the job.jar created in the /user/hadoop/.staging/ folder is always the same no matter which jar file i give. if i download the job.jar file then I reckon t...
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Author: Ben Kim,
2013-03-12, 16:00
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Re: Multiple reduce task retries running at same time - MapReduce - [mail # user]
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...Attached a screenshot showing the retries On Tue, Jan 29, 2013 at 4:35 PM, Ben Kim wrote: *Benjamin Kim* *benkimkimben at gmail*...
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Author: Ben Kim,
2013-01-29, 07:38
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Multiple reduce task retries running at same time - MapReduce - [mail # user]
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...Hi! I have come across the situation where i found a single reducer task executing with multiple retries simultaneously. Which is potent for slowing down the whole reduce process for l...
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Author: Ben Kim,
2013-01-29, 07:35
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Re: Streaming Job map/reduce not working with scripts on 1.0.3 - MapReduce - [mail # user]
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...nevermind. the problem has been fixed. The problem was the trailing {control-v}{control-m} character on the first line of #!/bin/bash (which i blame my teammate for writing the script ...
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Author: Ben Kim,
2013-01-04, 11:57
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Streaming Job map/reduce not working with scripts on 1.0.3 - MapReduce - [mail # user]
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...Hi ! I'm using hadoop-1.0.3 to run streaming jobs with map/reduce shell scripts such as this bin/hadoop jar ./contrib/streaming/hadoop-streaming-1.0.3.jar -input /input -output /...
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Author: Ben Kim,
2013-01-04, 11:09
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Re: use S3 as input to MR job - MapReduce - [mail # user]
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...I'm having a similar issue I'm running a wordcount MR as follows hadoop jar WordCount.jar wordcount.WordCountDriver s3n://bucket/wordcount/input is a s3 object that contai...
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Author: Ben Kim,
2012-10-02, 10:05
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Re: Error reading task output - MapReduce - [mail # user]
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...Bejoy, Thanks alot for your response. You are right. The problem is with the misconfigured nproc on the OS. Originally, my limits.conf file was something like this: * hard ...
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Author: Ben Kim,
2012-07-27, 17:04
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