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[expand - 1 more] - Re: Providing a file instead of a directory to a M/R job - Hadoop - [mail # user]
...That is what I thought so too but when I give the parent directory as theinput path of that same file, it works. Perhaps I am messing something up.I am suing cloudera 4.6 btw.Meanwhile I hav...
   Author: Shahab Yunus, 2014-07-17, 15:27
Re: How to recover reducer task data on a different data node? - Hadoop - [mail # user]
...Adding to what Jungi Jeong said, if you can get your hands on the book*Hadoop: The Definitive Guide *by Tom White, then that would help as well asit is explains this in significant detail.Re...
   Author: Shahab Yunus, 2014-07-03, 11:40
Re: The future of MapReduce - Hadoop - [mail # user]
...My personal thoughts on this.I approach this problem in a different way. Map/Reduce is not a frameworkor a technology. It was a paradigm for distributed and parallel processingwhich can be i...
   Author: Shahab Yunus, 2014-07-02, 20:12
Re: Spark vs. Storm - Hadoop - [mail # user]
...Not exactly. There are of course  major implementation differences and thensome subtle and high level ones too.My 2-cents:Spark is in-memory M/R and it simulated streaming or real-time ...
   Author: Shahab Yunus, 2014-07-02, 19:59
Re: job.setOutputFormatClass(NullOutputFormat.class); - Hadoop - [mail # user]
...To get rid of empty *part files while using MultipleOutputs in the new API,LazyOutputFormat class' static method should be used to set the outputformat.Details are here at the official Java ...
   Author: Shahab Yunus, 2014-07-02, 02:19
Re: WholeFileInputFormat in hadoop - Hadoop - [mail # user]
...I think it takes the entire file as input. Otherwise it won't be anydifferent from the normal line/record-based input format.Regards,ShahabOn Jun 28, 2014 3:28 AM, "unmesha sreeveni"  w...
   Author: Shahab Yunus, 2014-06-28, 12:38
Re: Practical examples - Hadoop - [mail # user]
...For Machine Learning based applications of Hadoop you can check-out Mahoutframework.Regards,ShahabOn Mon, Apr 28, 2014 at 10:02 PM, Mohan Radhakrishnan <[EMAIL PROTECTED]> wrote: ...
   Author: Shahab Yunus, 2014-04-29, 02:08
Re: How do I get started with hadoop - Hadoop - [mail # user]
...Assuming, you are talking about basic stuff...Michael Noll has some good Hadoop (pre-Yarn) tutorialshttp://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/T...
   Author: Shahab Yunus, 2014-04-25, 11:59
[expand - 1 more] - Re: calling mapreduce from webservice - Hadoop - [mail # user]
...As far as I know there is no API to kick of M/R jobs. There is for M/R v2,a REST API to get status of jobs:http://hadoop.apache.org/docs/r2.3.0/hadoop-yarn/hadoop-yarn-site/MapredAppMasterRe...
   Author: Shahab Yunus, 2014-04-18, 23:07
[expand - 1 more] - Re: JVM option - Hadoop - [mail # user]
...HADOOP_HEAPSIZE and HADOOP_OPTS are not hadoop properties. These seem tobe environment variables of the shell script.Try this with a space between -D and the property name (-Dmapred.child.ja...
   Author: Shahab Yunus, 2014-04-18, 21:48
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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