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Re: Capacity Scheduler questions/comments - Hadoop - [mail # general]
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...Hi, Glad you asked! User questions go to [EMAIL PROTECTED]. This general@ is for project-level discussions. On Mon, Jan 7, 2013 at 12:29 AM, s d wrote: Harsh J...
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Author: Harsh J,
2013-01-06, 20:02
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Re: more reduce tasks - Hadoop - [mail # user]
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...What do you mean by a "final reduce"? Not all jobs require that the final output result be singular, since the reducer phase is provided to work on a per-partition basis (also why the files ...
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Author: Harsh J,
2013-01-05, 07:57
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Re: Possible to run an application jar as a hadoop daemon? - Hadoop - [mail # user]
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...Hi, On Fri, Jan 4, 2013 at 8:10 PM, Krishna Rao wrote: The latter is because running a Hadoop program requires Hadoop dependencies and configs to be available in its runtim...
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Author: Harsh J,
2013-01-05, 07:48
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Re: Gridmix version 1.0.4 Error - Hadoop - [mail # user]
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...Hi Sean, Two questions: Why are you running this in local mode? Placing a cluster's config directory on your java -cp will make it go distributed. And, does that reported output direct...
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Author: Harsh J,
2013-01-05, 07:45
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Re: sporadic failure - Hadoop - [mail # user]
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...Hi Stan, I'd check the NN audit logs for the file /user/apache/.staging/ job_201211150255_237458/job.xml to see when/who deleted it away, perhaps that would give more insight. O...
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Author: Harsh J,
2013-01-05, 07:44
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Re: Question about HA and Federation - Hadoop - [mail # user]
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...Btw, you can co-locate NameNodes (unique namespace ones) onto the same machine if you need to - the configs easily allow this via rpc/http port specifiers. On Thu, Dec 20, 2012 at 11:3...
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Author: Harsh J,
2012-12-20, 18:26
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Re: Question about HA and Federation - Hadoop - [mail # user]
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...Yes I think its safe to say that - sorry that I missed out SNNs in my first response (I counted only the regular serving namenodes) :) On Thu, Dec 20, 2012 at 11:25 PM, ESGLinux ...
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Author: Harsh J,
2012-12-20, 17:57
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Re: Question about HA and Federation - Hadoop - [mail # user]
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...Hi, To put it simply: If you use a NameNode, you need a SecondaryNameNode. In HA-mode, a StandbyNameNode acts as a SecondaryNameNode (so you don't need to run an extra). Either w...
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Author: Harsh J,
2012-12-20, 17:48
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Re: Question about HA and Federation - Hadoop - [mail # user]
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...Hi ESGLinux, Federation and HA are two distinct features that share some common properties but nothing more. You can turn on HA for any selected Namespace but it is not necessarily nee...
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Author: Harsh J,
2012-12-20, 17:12
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[HADOOP-7975] Add entry to XML defaults for new LZ4 codec - Hadoop - [issue]
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...HADOOP-7657 added in a new LZ4 codec, but failed to extend the io.compression.codecs list which MR/etc. use up to load codecs.We should add an entry to the core-default XML for this new code...
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http://issues.apache.org/jira/browse/HADOOP-7975
Author: Harsh J,
2012-12-20, 15:58
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