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[expand - 4 more] - Re: number of mappers allowed in a container in hadoop2 - Hadoop - [mail # user]
...No. In Yarn, a container is a container which you can call normalcontainer. It is the M/R framework that you run on top of it that considersthem 'map' and 'reduce' containers.I recommend rea...
   Author: Shahab Yunus, 2014-10-15, 14:37
[expand - 1 more] - Re: Query regarding the replication factor in hadoop - Hadoop - [mail # user]
...Interesting. I thought that the write would fail in case if # of nodesdowns is greater than min-replication property. So in reality we only get awarning while writing (and a info message thr...
   Author: Shahab Yunus, 2014-09-19, 14:56
[expand - 2 more] - Re: ClassCastException on running map-reduce jobs + tests on Windows (mongo-hadoop) - Hadoop - [mail # user]
...You will have to convert BSONWritable to BSONObject yourself. You canabstract this parsing in a separate class/object model and reuse it but asfar as I understand, objects being serialized o...
   Author: Shahab Yunus, 2014-09-18, 11:40
Re: how to setup Kerberozed Hadoop ? - Hadoop - [mail # user]
...HiHave you already looked at the existing documentation?For apachehttp://hadoop.apache.org/docs/r2.3.0/hadoop-project-dist/hadoop-common/SecureMode.html-For clouderahttp://www.cloudera.com/c...
   Author: Shahab Yunus, 2014-09-15, 19:53
Re: Explanation according to the output of a successful execution - Hadoop - [mail # user]
...How did you fix it? And what is your question now?Regards,ShahabOn Mon, Sep 15, 2014 at 9:18 AM, YIMEN YIMGA Gael <[EMAIL PROTECTED]> wrote: ...
   Author: Shahab Yunus, 2014-09-15, 13:20
Re: Writing output from streaming task without dealing with key/value - Hadoop - [mail # user]
...Examples (the top ones are related to streaming jobs):http://www.infoq.com/articles/HadoopOutputFormathttp://research.neustar.biz/2011/08/30/custom-inputoutput-formats-in-hadoop-streaming/ht...
   Author: Shahab Yunus, 2014-09-10, 18:48
Re: Error when executing a WordCount Program - Hadoop - [mail # user]
...*hdfs://latdevweb02:9000/home/hadoop/hadoop/input*is this is a valid path on hdfs? Can you access this path outside of theprogram? For example using hadoop fs -ls command? Also, was this pat...
   Author: Shahab Yunus, 2014-09-10, 13:19
Re: YARN userapp cache lifetime: can't find core dump - Hadoop - [mail # user]
...Perhaps the following? I get the application logs from here after jobcompletion. This is path on hdfs.yarn.nodemanager.remote-app-log-dirRegards,ShahabOn Tue, Sep 2, 2014 at 4:02 PM, John Li...
   Author: Shahab Yunus, 2014-09-02, 20:13
[expand - 1 more] - Re: job.getCounters returns null in Yarn-based job - Hadoop - [mail # user]
...For those who are interested, this got resolved.The issue was that I was creating more counters than what was configured inthe settings.I upped mapreduce.job.counters.max property to a large...
   Author: Shahab Yunus, 2014-08-23, 00:40
Re: Hadoop InputFormat - Processing large number of small files - Hadoop - [mail # user]
...Have you looked at the WholeFileInputFormat implementations? There arequite a few if search for them...http://hadoop-sandy.blogspot.com/2013/02/wholefileinputformat-in-java-hadoop.htmlhttps:...
   Author: Shahab Yunus, 2014-08-20, 13:19
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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