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Re: Logistics for releasing 2.4 - Hadoop - [mail # dev]
...+1 for a 2.4 (and 2.3) this month.  The current vote for YARN-321 is to merge it to trunk.  Rereading the discussion around YARN-321, my understanding is that it's unlikely to be s...
   Author: Sandy Ryza, 2014-01-21, 19:31
Re: [Discussion] Merge YARN-321 into Branch-2 - Hadoop - [mail # dev]
..."How about not doing this until security is ready and refactoring duplicate code is done?" That sounds fine.  As long as they're marked stable by the time we include them in a release, ...
   Author: Sandy Ryza, 2014-01-07, 05:06
Re: Will there be a 2.2 patch releases? - Hadoop - [mail # dev]
...Re-reading the thread, it seems what I said about 2.2.1 never happening was incorrect.  My impression is still that nobody has plans to drive a 2.2.1 release on any particular timeline....
   Author: Sandy Ryza, 2014-01-04, 01:26
Re: Can NMs communicate among themselves? - Hadoop - [mail # dev]
...Hi Santosh,  NodeManagers do not communicate with each other in YARN.  -Sandy   On Mon, Dec 9, 2013 at 5:42 PM, santosh kumar wrote:  ...
   Author: Sandy Ryza, 2013-12-10, 01:44
Re: real time analytics on hadoop using spark or storm - Hadoop - [mail # user]
...As Azurry said, Spark Streaming can process data in small batches as well.  An advantage of Spark Streaming over Storm is that the same code can be used both for small and large batches...
   Author: Sandy Ryza, 2013-12-07, 01:45
Re: Any reference for upgrade hadoop from 1.x to 2.2 - Hadoop - [mail # user]
...Unfortunately there is no way to see MR1 jobs in the MR2 job history.  -Sandy   On Thu, Dec 5, 2013 at 3:47 AM, Nirmal Kumar wrote:  ...
   Author: Sandy Ryza, 2013-12-05, 17:07
Re: 答复: problems of FairScheduler in hadoop2.2.0 - Hadoop - [mail # user]
...Thanks for the additional info.  Still not sure what could be going on.  Do you notice any other suspicious LOG messages in the resourcemanager log?  Are you able to show the ...
   Author: Sandy Ryza, 2013-11-27, 17:20
Re: question about preserving data locality in MapReduce with Yarn - Hadoop - [mail # user]
...Splits are a MapReduce concept . Check out FileInputFormat for how an example of how to get block locations.  You can then pass these locations into an AMRMClient.ContainerRequest. &nbs...
   Author: Sandy Ryza, 2013-10-31, 22:59
Re: yarn.nodemanager.vmem-check-enabled - Hadoop - [mail # user]
...Hi John,  At Cloudera we turn it off by default and recommend doing so because of the way that Java can behave weirdly with high vmems.  -Sandy   On Sun, Oct 20, 2013 at 7:34 ...
   Author: Sandy Ryza, 2013-10-24, 01:19
Re: Why my tests shows Yarn is worse than MRv1 for terasort? - Hadoop - [mail # user]
...Unfortunately yes.  I agree that it should be documented.  The only way to compare fairly is to use the same terasort jar against both.  When I've done comparisons, I've used ...
   Author: Sandy Ryza, 2013-10-24, 00:30
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