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Re: Encryption in HDFS - MapReduce - [mail # user]
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...Another challenge of encrypt/decrypt is key management. Can you share how are this is handled in your implementation/research 2013/2/25 Seonyeong Bak Have a Nice Da...
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Author: lohit,
2013-02-26, 05:15
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Re: API incompatibility between Hadoop 1.0 and Hadoop 2.0 - MapReduce - [mail # dev]
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...Thanks. What I am more interested is list of APIs where users have to change code. I know that on YARN I can run jobs which still use org.apache.hadoop.mapred code. But recently we hit a cas...
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Author: lohit,
2013-02-09, 05:53
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Re: [VOTE] Release hadoop-2.0.3-alpha - MapReduce - [mail # dev]
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...+1 Deployed on more than 100 nodes. Ran 30TB teragen/terasort. Will run few more over the weekend to test scheduler. Things looks stable. I do see few failures, but those I believe are hardw...
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Author: lohit,
2013-02-09, 01:07
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Re: API incompatibility between Hadoop 1.0 and Hadoop 2.0 - MapReduce - [mail # dev]
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...Thanks Vinod. 2013/2/8 Vinod Kumar Vavilapalli Have a Nice Day! Lohit...
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Author: lohit,
2013-02-08, 18:59
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API incompatibility between Hadoop 1.0 and Hadoop 2.0 - MapReduce - [mail # dev]
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...Hi Devs, Is there a documented list of API incompatibility between version 1.0 and version 2.0 of APIs. Have a Nice Day! Lohit...
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Author: lohit,
2013-02-08, 18:21
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Re: Memory based scheduling - MapReduce - [mail # user]
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...I did not know about this feature in Capacity Scheduler. Just to get more information, lets assume cluster has 4 slots on node with 8G (as mentioned by Marco). Now if 2 slots are occupied wi...
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Author: lohit,
2012-10-30, 17:33
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Re: Memory based scheduling - MapReduce - [mail # user]
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...As far as I recall this is not possible. Per job or per user configurations like these are little difficult in existing version. What you could try is to set max map per job to be say half o...
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Author: lohit,
2012-10-30, 16:08
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Re: Max Maps for default queues in FairScheduler - MapReduce - [mail # dev]
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...In a big cluster with hundreds are users, not all of them would submit their job to specific queues. And creating hundreds are pool is not very easy. Having something like userMaxMaps would ...
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Author: lohit,
2012-10-19, 00:03
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Max Maps for default queues in FairScheduler - MapReduce - [mail # dev]
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...I am trying to understand FairScheduler configs I am trying to see if there is a way to achieve the below. I see that if there are no pools configured (or only few pools are configured ) and...
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Author: lohit,
2012-10-18, 23:41
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Re: Hive Query with UDF - MapReduce - [mail # user]
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...One idea is to write your own translation layer which sits in between query and actual job submission. You would most likely end up having your own version of hive jar which has your t...
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Author: lohit,
2012-10-18, 02:13
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