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Re: passing configuration parameter to comparator - HDFS - [mail # user]
...The comparators are also initialised via the ReflectionUtils code, so they do try to pass configuration onto the instantiated object if the class implements the org.apache.hadoop.conf.Config...
   Author: Harsh J, 2013-12-02, 17:04
Re: Start and Stop Namenode - HDFS - [mail # user]
...Yes you should expect to see a NameNode separately available but apparently its dying out. Check the NN's log on that machine to see why.  On Thu, Nov 28, 2013 at 8:37 AM, Ascot Moss &n...
   Author: Harsh J, 2013-11-28, 05:25
Re: simple word count program remains un assigned... - HDFS - [mail # user]
...For CDH-specific questions, you can post them onto the Cloudera Community forums: http://community.cloudera.com  On Sun, Oct 20, 2013 at 2:45 AM, gunjan mishra  wrote:    ...
   Author: Harsh J, 2013-10-20, 03:26
[expand - 1 more] - Re: Task status query - HDFS - [mail # user]
...Right now its MR specific (TaskUmbilicalProtocol) - YARN doesn't have any reusable items here yet, but there are easy to use RPC libs such as Avro and Thrift out there that make it easy to d...
   Author: Harsh J, 2013-09-20, 13:47
Re: HDFS performance with an without replication - HDFS - [mail # user]
...Write performance improves with lesser replicas (as a result of synchronous and sequenced write pipelines in HDFS). Reads would be the same, unless you're unable to schedule a rack-local rea...
   Author: Harsh J, 2013-09-15, 18:39
Re: How to speed up Hadoop? - HDFS - [mail # user]
...I'd recommend reading Eric Sammer's "Hadoop Operations" (O'Reilly) book. It goes over a lot of this stuff - building, monitoring, tuning, optimizing, etc..  If your goal is just speed a...
   Author: Harsh J, 2013-09-06, 02:38
Re: How to support the (HDFS) FileSystem API of various Hadoop Distributions? - HDFS - [mail # user]
...Oh and btw, nice utility! :)  On Fri, Sep 6, 2013 at 7:50 AM, Harsh J  wrote:    Harsh J...
   Author: Harsh J, 2013-09-06, 02:26
Re: SNN not writing data fs.checkpoint.dir location - HDFS - [mail # user]
...These configs need to be present at SNN, not at just the NN.  On Thu, Sep 5, 2013 at 11:54 PM, Munna  wrote:    Harsh J...
   Author: Harsh J, 2013-09-05, 18:28
[expand - 3 more] - Re: yarn-site.xml and aux-services - HDFS - [mail # user]
...Please log a JIRA on https://issues.apache.org/jira/browse/YARN (do let the thread know the ID as well, in spirit of http://xkcd.com/979/)  On Thu, Sep 5, 2013 at 11:41 PM, John Lilley ...
   Author: Harsh J, 2013-09-05, 18:13
Re: How to update the timestamp of a file in HDFS - HDFS - [mail # user]
...Murali,  The touchz creates a zero sized file. It does not allow modifying a timestamp like Linux's touch command does, which is what the OP seems to be asking about.  On Thu, Sep ...
   Author: Harsh J, 2013-09-05, 10:07
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB