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Re: Which version of Hadoop - MapReduce - [mail # user]
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...2.x.x provides NN high availability. http://hadoop.apache.org/docs/r2.0.3-alpha/hadoop-yarn/hadoop-yarn-site/HDFSHighAvailabilityWithQJM.html However, it is in alpha stage right now. &...
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Author: Hemanth Yamijala,
2013-04-20, 12:10
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Re: Errors about MRunit - MapReduce - [mail # user]
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...+ user@ Please do continue the conversation on the mailing list, in case others like you can benefit from / contribute to the discussion Thanks Hemanth On Sat, Apr 20, 2013...
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Author: Hemanth Yamijala,
2013-04-20, 12:04
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Re: Create and write files on mounted HDFS via java api - MapReduce - [mail # user]
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...Sorry - no. I just wanted to know if you were using FUSE, because I knew of no other way of mounting HDFS.. Basically was wondering if some libraries needed to be system path for the Java pr...
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Author: Hemanth Yamijala,
2013-04-20, 11:31
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Re: Errors about MRunit - MapReduce - [mail # user]
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...Hi, If your goal is to use the new API, I am able to get it to work with the following maven configuration: org.apache.mrunit &n...
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Author: Hemanth Yamijala,
2013-04-20, 10:42
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Re: Create and write files on mounted HDFS via java api - MapReduce - [mail # user]
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...Are you using Fuse for mounting HDFS ? On Fri, Apr 19, 2013 at 4:30 PM, lijinlong wrote: ...
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Author: Hemanth Yamijala,
2013-04-20, 10:18
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Re: jobtracker is stopping because of permissions - MapReduce - [mail # user]
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.../mnt/san1 - owned by aye, hadmin and user mapred is trying to write to this directory. Can you look at your core-, hdfs- and mapred-site.xml to see where /mnt/san1 is configured as a value -...
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Author: Hemanth Yamijala,
2013-04-20, 10:02
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Re: Run multiple HDFS instances - MapReduce - [mail # user]
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...Are you trying to implement something like namespace federation, that's a part of Hadoop 2.0 - http://hadoop.apache.org/docs/r2.0.3-alpha/hadoop-project-dist/hadoop-hdfs/Federation.html &nbs...
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Author: Hemanth Yamijala,
2013-04-19, 04:01
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Re: How to configure mapreduce archive size? - MapReduce - [mail # user]
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...Well, since the DistributedCache is used by the tasktracker, you need to update the log4j configuration file used by the tasktracker daemon. And you need to get the tasktracker log file - fr...
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Author: Hemanth Yamijala,
2013-04-19, 03:54
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Re: How to configure mapreduce archive size? - MapReduce - [mail # user]
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...The check for cache file cleanup is controlled by the property mapreduce.tasktracker.distributedcache.checkperiod. It defaults to 1 minute (which should be sufficient for your requirement). ...
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Author: Hemanth Yamijala,
2013-04-18, 04:11
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Re: How to configure mapreduce archive size? - MapReduce - [mail # user]
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...You can limit the size by setting local.cache.size in the mapred-site.xml (or core-site.xml if that works for you). I mistakenly mentioned mapred-default.xml in my last mail - apologies for ...
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Author: Hemanth Yamijala,
2013-04-17, 04:34
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