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Re: Needs a simple answer - Hadoop - [mail # user]
...Maha,  Remember that the mapper is not running on the same machine as the main class.  Thus local files aren't where you think.  On Thu, Dec 16, 2010 at 1:06 PM, maha  wr...
   Author: Ted Dunning, 2010-12-16, 22:49
[expand - 1 more] - Re: Slow final few reducers - Hadoop - [mail # user]
...The job history program tells you this.  The syntax is hideous, but there is a parser provided.  On Sat, Dec 11, 2010 at 8:23 AM, Mithila Nagendra  wrote:  ...
   Author: Ted Dunning, 2010-12-11, 18:10
[expand - 3 more] - Re: Is it possible to write file output in Map phase once and write another file output in Reduce phase? - Hadoop - [mail # user]
...Of course.  It is just a set of Hadoop programs.  2010/12/11 edward choi  ...
   Author: Ted Dunning, 2010-12-11, 18:00
[expand - 2 more] - Re: Announcing KeptCollections, distributed Java Collections for ZooKeeper - Hadoop - [mail # general]
...It definitely can go that way.  But some things are pretty nicely viewed that way.  For instance, wouldn't it be nice to have a "live processes" set in different programs?  Of...
   Author: Ted Dunning, 2010-12-09, 23:22
[expand - 2 more] - Re: java.lang.OutOfMemoryError: GC overhead limit exceeded - Hadoop - [mail # user]
...If there are combiners, the reducers shouldn't get any lists longer than a small multiple of the number of maps.  On Sun, Sep 26, 2010 at 6:01 PM, Bradford Stephens  wrote:  ...
   Author: Ted Dunning, 2010-09-27, 02:00
Re: how to transfer the parameter from a reduce to another iteration of mapred - Hadoop - [mail # user]
...1.  Attachments don't work with this mailing list.  2.  Use a combiner to combine your sums and counts into bigger sums and counts  3.  The reducer should take a lis...
   Author: Ted Dunning, 2009-10-11, 21:39
Re: Parallel data stream processing - Hadoop - [mail # user]
...On Fri, Oct 9, 2009 at 11:02 PM, Ricky Ho  wrote:  m  Current implementations are definitely batch oriented.  Keep reading, though.     Abolutely.   t &nbs...
   Author: Ted Dunning, 2009-10-10, 08:01
Re: Hey Cloudera can you help us In beating Google Yahoo Facebook? - Hadoop - [mail # dev]
...On Fri, Oct 2, 2009 at 4:02 PM, Smith Stan  wrote:   What do you mean beat Yahoo, Google and Facebook?   Is it true that Google uses hadoop?  Yes.  Mostly for educat...
   Author: Ted Dunning, 2009-10-02, 23:36
[expand - 1 more] - Re: Advice on new Datacenter Hadoop Cluster? - Hadoop - [mail # user]
...Depending on your needs and the size of your cluster, the out-of-band management can be of significant interest.  It is a pretty simple cost/benefit analysis that trades your sysops tim...
   Author: Ted Dunning, 2009-09-30, 23:27
Re: last map task taking too long - Hadoop - [mail # dev]
...Is that last map task actually running, or is it pending?  On Tue, Sep 29, 2009 at 5:57 PM, achilles852  wrote:    Ted Dunning, CTO DeepDyve...
   Author: Ted Dunning, 2009-09-30, 01:01
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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