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Re: Calling the JobTracker from Reducer throws InvalidCredentials GSSException - MapReduce - [mail # user]
...Hm, I think I forgot the bit where Oozie also adds a DT for itself to use: https://github.com/apache/oozie/blob/release-4.0.0/core/src/main/java/org/apache/oozie/service/HadoopAccessorServic...
2 emails [+ more]    Author: Harsh J, 2013-09-29, 10:51
Re: Is there any way to partially process HDFS edits? - MapReduce - [mail # user]
...Tom,  That is valuable info. When we "replay" edits, we would be creating and then deleting those files - so memory would grow in between until the delete events begin appearing in the ...
2 emails [+ more]    Author: Harsh J, 2013-09-26, 17:07
Re: 2 Map tasks running for a small input file - MapReduce - [mail # user]
...Hi Sai,  What Viji indicated is that the default Apache Hadoop setting for any input is 2 maps. If the input is larger than one block, regular policies of splitting such as those stated...
   Author: Harsh J, 2013-09-26, 11:54
Re: Lz4Codec - MapReduce - [mail # user]
...The LZ4 codec was introduced in 2.x releases and is not present in 1.x.  On Tue, Sep 24, 2013 at 8:20 PM, Tomás Fernández Pena  wrote:    Harsh J...
   Author: Harsh J, 2013-09-25, 01:54
Re: Yarn and Hdfs federation - MapReduce - [mail # user]
...Hi Manickam,  Can you explain what you're really trying to achieve/construct here?  YARN has little to do with Federation. One typically runs federation to divide the namespace acr...
2 emails [+ more]    Author: Harsh J, 2013-09-25, 01:52
Re: A couple of Questions on InputFormat - MapReduce - [mail # user]
...Hi,  Yes, that is right.  On Mon, Sep 23, 2013 at 9:04 PM, Steve Lewis  wrote:    Harsh J...
2 emails [+ more]    Author: Harsh J, 2013-09-24, 03:13
Re: Issue: Max block location exceeded for split error when running hive - MapReduce - [mail # user]
...Are you using a CombineFileInputFormat or similar input format then, perhaps?  On Thu, Sep 19, 2013 at 1:29 PM, Murtaza Doctor  wrote:    Harsh J...
2 emails [+ more]    Author: Harsh J, 2013-09-19, 08:33
Re: FATAL org.apache.hadoop.mapred.JettyBugMonitor question - MapReduce - [mail # user]
...What version of jetty are you using? We've not seen this lately (after we began shipping a patched Jetty), but the check is valid and protects your MR jobs from getting into a hung or slow s...
   Author: Harsh J, 2013-09-14, 10:44
Re: Yarn log directory perms - MapReduce - [mail # user]
...This is true for MRv1 too, and is done so for security reasons.  On Sat, Sep 14, 2013 at 2:37 AM, Prashant Kommireddi  wrote:    Harsh J...
   Author: Harsh J, 2013-09-14, 04:04
Re: fsck -move is copying not moving - MapReduce - [mail # user]
...Hi,  The -move will move any existing good blocks (salvaging the file's remains) under the specified file, to /lost+found/. This is regular behavior. To get rid of a corrupt file entire...
   Author: Harsh J, 2013-09-13, 19:15
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