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Class loading in Hadoop and HBase - Hadoop - [mail # user]
...Hi all,I'm running with Hadoop 1.0.4 and HBase 0.94.12 bundled (OSGi) versions Ibuilt.Most issues I encountered are related to class loaders.One of the patterns I noticed in both projects is...
   Author: Amit Sela, 2014-03-19, 17:53
Custom counters in combiner - Hadoop - [mail # user]
...Hi all,  I'm running a mapreduce job that has custom counters incremented in the combiner's reduce function. Looking at the mapreduce web UI I see that, like all counters, its has three...
   Author: Amit Sela, 2014-01-13, 18:17
Re: manipulating key in combine phase - Hadoop - [mail # user]
...More than a solution, I'd like to know if a combiner is allowed to change the key ? will it interfere with the mappers sort/merge ?   On Mon, Jan 13, 2014 at 3:06 PM, Devin Suiter RDX &...
   Author: Amit Sela, 2014-01-13, 17:39
Using CapacityScheduler to divide resources between jobs (not users) - Hadoop - [mail # user]
...Hi all,  I'm running Hadoop 1.0.4 on a modest cluster (~20 machines). The jobs running on the cluster can be divided (resource wise) as follows:  1. Very short jobs: less then 1 mi...
   Author: Amit Sela, 2013-07-06, 14:07
Re: test patch fails with -1 findbugs - Hadoop - [mail # dev]
...Following Ted Yu's advice, I created an empty patch and got the same results... any ideas ? I do notice findbugs complaining of missing classes:    [exec]  [findbugs] The foll...
[+ more]    Author: Amit Sela, 2013-05-11, 22:04
findbugs Classes missing for analysis - Hadoop - [mail # dev]
...Hi all,  I'm still trying to test my patch and after installing findbugs 1.3.9 and forrest 0.9 I ran ant test and got the following:   The following classes needed for analysis wer...
   Author: Amit Sela, 2013-05-02, 22:14
Re: How to test patch - Hadoop - [mail # dev]
...Appeared to be a permissions issue, chmod 777 -R on apache-forrest directory solved it.   On Tue, Apr 30, 2013 at 7:45 PM, Steve Loughran wrote:  ...
[+ more]    Author: Amit Sela, 2013-04-30, 21:13
Failing to run ant test on clean Hadoop branch-1 checkout - Hadoop - [mail # user]
...Hi all,  I'm trying to run ant test on a clean Hadoop branch-1 checkout. ant works fine but when I run ant test I get a lot of failures:  Test org.apache.hadoop.cli.TestCLI FAILED ...
   Author: Amit Sela, 2013-04-27, 18:35
JobTracker client - max connections - Hadoop - [mail # user]
...Hi all,  I'm implementing an API over the JobTracker client - JobClient. My plan is to have a pool of JobClient objects that will expose the ability to submit jobs, poll status etc. &nb...
   Author: Amit Sela, 2013-03-05, 12:41
Generic output key class - Hadoop - [mail # user]
...Hi all,  Has anyone ever used some kind of a "generic output key" for a mapreduce job ?  I have a job running multiple tasks and I want them to be able to use both Text and IntWrit...
   Author: Amit Sela, 2013-02-10, 12:00
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