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Re: QJM for federation - MapReduce - [mail # user]
...This has been asked previously. Use suffixes to solve your issue. See http://search-hadoop.com/m/Fingkg6Dk91  On Wed, Jul 17, 2013 at 1:33 PM, lei liu  wrote:    Harsh J...
   Author: Harsh J, 2013-07-17, 08:08
Re: Running example programs on YARN - MapReduce - [mail # user]
...The MR (MR2) application would reside in the project/jar called hadoop-mapreduce-client-app-*.jar. In a tarball, this would be at $HADOOP_PREFIX/share/hadoop/mapreduce/  On Mon, Jul 15,...
   Author: Harsh J, 2013-07-15, 02:34
Re: Hadoop property precedence - MapReduce - [mail # user]
...Replication, block size, etc. are all per-file and pure client supplied properties. They either take their default from the client config, or directly from an API argument override.  On...
   Author: Harsh J, 2013-07-14, 10:54
Re: how to add JournalNodes - MapReduce - [mail # user]
...You need to restart your NameNodes to get them to use the new QJM 5-host-set configs, and I think you can do that without downtime if you're already in HA mode by restarting one NN at a time...
   Author: Harsh J, 2013-07-12, 08:08
Re: yarn Failed to bind to: 0.0.0.0/0.0.0.0:8080 - MapReduce - [mail # user]
...Please see yarn-default.xml for the list of options you can tweak: http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-common/yarn-default.xml. The port 8080 is not used by NM by d...
   Author: Harsh J, 2013-07-11, 03:19
Re: How bad is this? :) - MapReduce - [mail # user]
...This is what I remember: If you disable journalling, running fsck after a crash will (be required and) take longer. Certainly not a good idea to have an extra wait after the cluster loses po...
   Author: Harsh J, 2013-07-09, 07:25
[expand - 2 more] - Re: - MapReduce - [mail # user]
...If this is not Bigtop package installed, please see src/BUILDING.txt to build your proper native libraries. The tarball doesn't ship with globally usable native libraries, given the OS/Arch ...
   Author: Harsh J, 2013-07-09, 07:09
Re: I wrote a scheduler. How to compile and put it to action? - MapReduce - [mail # dev]
...To compile it to a jar, rely on your build framework. Or pack it up with "jar cf jarfile dirs…"? This is more of a Java question, can be googled and is specific to the tool you use.  To...
   Author: Harsh J, 2013-07-09, 03:01
[expand - 2 more] - Re: Can I move block data directly? - MapReduce - [mail # user]
...Yeah you're right. I only meant the ownership of the blk_* files to be owned by the same user as the DN daemon, for consistency more than anything else.  On Mon, Jul 8, 2013 at 11:46 AM...
   Author: Harsh J, 2013-07-08, 07:10
[expand - 1 more] - Re: How to update a file which is in HDFS - MapReduce - [mail # user]
...If it is 1k new records at the "end of the file" then you may extract them out and append the existing file in HDFS. I'd recommend using HDFS from Apache Hadoop 2.x for this purpose.  O...
   Author: Harsh J, 2013-07-05, 10:54
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