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JobHistoryServer Questions : MAPREDUCE-5902 - Hadoop - [mail # dev]
...Hi hadoop-common:Sorry to ping again , but am super curious for some feedback on the abovejira, ideally from the folks working on the JobHistoryServer - it appearscertain types of paths don'...
   Author: Jay Vyas, 2014-05-24, 18:05
[expand - 2 more] - Re: getCounters NPE - Hadoop - [mail # dev]
...To add some more detail on this: after turning logging to debug, it's clear that the job history server is skipping the copying of a completed jhist file into the done/ directory.Is there an...
   Author: Jay Vyas, 2014-05-23, 11:40
Re: No job can run in YARN (Hadoop-2.2) - Hadoop - [mail # user]
...Sounds odd....So (1) you got a filenotfound exception and (2) you fixed it by commenting out memory specific config parameters?Not sure how that would work... Any other details or am I missi...
   Author: Jay Vyas, 2014-05-12, 20:47
[expand - 1 more] - Re: Yarn hangs @Scheduled - Hadoop - [mail # user]
...I fixed the issue by setting yarn.scheduler.minimum-allocation-mb=1024I'm thinking this happens a lot in VMs where you run w low memory.If memory too low, I think other failures will occur a...
   Author: Jay Vyas, 2014-04-24, 22:31
[expand - 1 more] - Re: DISCUSS: use SLF4J APIs in new modules? - Hadoop - [mail # dev]
...Couple more questions:- what is "source" vs. "modules" in steve's above outline?- Should individual JIRAs be submitted to start doing this for segments ofthe code, and if so at what granular...
   Author: Jay Vyas, 2014-04-23, 02:54
Re: Strange error in Hadoop 2.2.0: FileNotFoundException: file:/tmp/hadoop-hadoop/mapred/ - Hadoop - [mail # user]
...Is this happening in the job client? or the mappers?On Tue, Apr 22, 2014 at 11:21 AM, Natalia Connolly <[EMAIL PROTECTED]> wrote:Jay Vyashttp://jayunit100.blogspot.com ...
   Author: Jay Vyas, 2014-04-22, 15:25
Re: Shuffle Error after enabling Kerberos authentication - Hadoop - [mail # user]
...(bump) this is a good question.im new to kerberos as well, and have been wondering how to preventscenarios such as this from happening.....my thought is that since Kerberos iirc requires a t...
   Author: Jay Vyas, 2014-04-20, 03:41
[expand - 1 more] - Re: Running unit test cases with Kerberos on - Hadoop - [mail # dev]
...thanks again alejandro!On Thu, Apr 17, 2014 at 11:37 AM, Alejandro Abdelnur wrote:Jay Vyashttp://jayunit100.blogspot.com ...
   Author: Jay Vyas, 2014-04-17, 15:49
Re: MapReduce for complex key/value pairs? - Hadoop - [mail # user]
...- Adding parsing logic in mappers/reducers is the simplest, least elegantway to do it, or just writing json  strings is one simple way to do it.- You get more advanced by writing custom...
   Author: Jay Vyas, 2014-04-08, 18:36
[expand - 1 more] - Re: Hadoop Serialization mechanisms - Hadoop - [mail # user]
...But I believe w.r.t. "will we see performance gains when usingavro/thrift/... over writables" -- it depends on the writableimplementation.    For example, If I have  a writabl...
   Author: Jay Vyas, 2014-03-31, 10:18
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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