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Re: How to find the num of Mappers - MapReduce - [mail # user]
...If we have a 640 MB data file and have 3 Data Nodes in a cluster. The file can be split into 10 Blocks and starts the Mappers M1, M2,  M3 first. As each one completes the task M4 and so on w...
   Author: Sai Sai, 2013-04-12, 08:21
Re: Reduce starts before map completes (at 23%) - MapReduce - [mail # user]
...I am running the wordcount from hadoop-examples, i am giving as input a bunch of test files, i have noticed in the output given below reduce starts when the map is at 23%, i was wondering if...
   Author: Sai Sai, 2013-04-12, 04:15
Re: Who splits the file into blocks - MapReduce - [mail # user]
...Here is my understanding about putting a file into hdfs: A client contacts name node and gets the location of blocks where it needs to put the blocks in data nodes. But before this how does ...
   Author: Sai Sai, 2013-03-31, 08:45
Re: Dissecting MR output article - MapReduce - [mail # user]
... Just wondering if there is any step by step explaination/article of MR output we get when we run a job either in eclipse or ubuntu.Any help is appreciated. Thanks Sai...
   Author: Sai Sai, 2013-03-23, 05:49
Re: Setup/Cleanup question - MapReduce - [mail # user]
...Thanks Harsh. So the setup/cleanup r for the Job and not the Mappers i take it. Thanks.      ________________________________  From: Harsh J  To: "" ; Sai Sai  ...
   Author: Sai Sai, 2013-03-23, 05:47
Re: Find current version & cluster info of hadoop - MapReduce - [mail # user]
...Just wondering if there r any commands in Hadoop which would give us the current version that we r using and any command which will give us the info of cluster setup of H we r working on. Th...
   Author: Sai Sai, 2013-03-08, 05:41
Re: Unknown processes unable to terminate - MapReduce - [mail # user]
...I have a list of following processes given below, i am trying to kill the process 13082 using:  kill 13082  Its not terminating RunJar.  I have done a stop-all.sh hoping it wo...
   Author: Sai Sai, 2013-03-04, 09:42
Files in hadoop. - MapReduce - [mail # user]
...Just wondering after we put a file in hadoop for running MR jobs after we r done with it. Is it a standard to delete it or just leave it there like that. Just wondering what others do. Any i...
   Author: Sai Sai, 2013-03-04, 08:33
Re: WordPairCount Mapreduce question. - MapReduce - [mail # user]
... Hello  I have a question about how Mapreduce sorting works internally with multiple columns.  Below r my classes using 2 columns in an input file given below.   1st ques...
   Author: Sai Sai, 2013-02-23, 12:52
Re: mapr videos question - MapReduce - [mail # user]
...Hi Could some one please verify if the mapr videos are meant for learning hadoop or is it for learning mapr. If we r interested in learning hadoop only then will they help. As a starter woul...
   Author: Sai Sai, 2013-02-23, 09:37
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