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Re: Code guidelines and bash - Hadoop - [mail # general]
...Allen, et. al.,I'm not sure how up to date that checklist is, but imposing such a smallsize on cmd arguments seems incredibly short sighted.  I'm pretty sure thatit is not a generally a...
   Author: Chris Embree, 2014-07-27, 02:29
[expand - 1 more] - Re: persistent under-replicated blocks - HDFS - [mail # dev]
...Hm, I had hoped this would have been fixed in hdfs 2.  I have a script that I run several times per day that identifies under replicated blocks and increases the replication factor by 1...
   Author: Chris Embree, 2014-01-09, 05:05
Re: Hadoop vs Ceph and GlusterFS - HDFS - [mail # user]
...Ceph and glusterfs are NOT centralized files systems.  Glusterfs can be used with Hadoop map reduce, but it requires a special plug in, and hdfs 2 can be ha, so it's probably not worth ...
   Author: Chris Embree, 2014-01-01, 01:30
Re: conf.set() and conf.get() - MapReduce - [mail # user]
...Ignorant question:  Did this just devolve into a java discussion?  On 12/30/13, unmesha sreeveni  wrote:...
   Author: Chris Embree, 2013-12-30, 06:24
Re: block replication - MapReduce - [mail # user]
...Maybe I'm just grouchy tonight.. it's seems all of these questions can be answered by RTFM. http://hadoop.apache.org/docs/current2/hadoop-project-dist/hadoop-hdfs/HdfsUserGuide.html  Wh...
   Author: Chris Embree, 2013-12-28, 02:06
Re: from relational to bigger data - Hadoop - [mail # user]
...In big data terms, 500G isn't big.  But, moving that much data around every night is not trivial either.  I'm going to guess at a lot here, but at a very high level.  1. Sqoop...
   Author: Chris Embree, 2013-12-19, 20:51
FYI re: Sqoop jiras being reported - MapReduce - [mail # user]
...Hello Hadoopers.  I thought I'd share a couple of sqoop bugs we found recently.  1)  If, for some reason, sqoop fails to move a file/directory to it's -target-dir because the ...
   Author: Chris Embree, 2013-12-07, 06:50
Re: Apache Ambari - Hadoop - [mail # user]
...Unless something has recently changed, Ambari cannot work on an existing cluster.  One of the several reasons we chose to eschew it.  On 12/5/13, Jilal Oussama  wrote:...
   Author: Chris Embree, 2013-12-05, 15:36
Re: Using combiners in python hadoop streaming - MapReduce - [mail # user]
...LMGTFY: http://pydoop.sourceforge.net/docs/pydoop_script.html#pydoop-script-guide   On Wed, Sep 18, 2013 at 6:01 PM, jamal sasha  wrote:  ...
   Author: Chris Embree, 2013-09-18, 22:10
[expand - 1 more] - Re: Cloudera Vs Hortonworks Vs MapR - MapReduce - [mail # user]
...Our evaluation was similar except we did not consider the "management" tools any vendor provided as that's just as much lock in as any proprietary tool.  What if I want trade vendors? &...
   Author: Chris Embree, 2013-09-17, 01:17
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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