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Regarding FIFO scheduler - MapReduce - [mail # user]
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...Hi, Lets assume that there are two jobs J1 (100 map tasks) and J2 (200 map tasks) and the cluster has a capacity of 150 map tasks (15 nodes with 10 ma p tasks per node) and Hadoop is u...
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Author: Praveen Sripati,
2011-09-22, 13:05
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Error running Hadoop in VirtualBox - MapReduce - [mail # user]
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...Hi, I have the following configuration - Ubuntu 11.04 as Guest and Host using VirtualBox and trying to run Hadoop 0.21.0. The host is acting as namenode/data node/job tracker/task trac...
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Author: Praveen Sripati,
2011-09-09, 16:34
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Re: Build failure in map reduce trunk - MapReduce - [mail # dev]
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...Tharnindu, Execute mvn eclipse:eclipse from root and you would be able to import the projects in eclipse. Then it would be easier to browse the code easily. Thanks, Praveen  ...
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Author: Praveen Sripati,
2011-08-28, 14:28
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Building branch-0.23 - MapReduce - [mail # dev]
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...Hi, I got the code from SVN for the branch-0.23 and ran the mvn command svn co http://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23/ mvn clean install package -Pdis...
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Author: Praveen Sripati,
2011-08-26, 12:13
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Re: Build failure in map reduce trunk - MapReduce - [mail # dev]
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...Thairindu, Try to get more information for debugging. [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch...
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Author: Praveen Sripati,
2011-08-26, 03:40
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Re: Build failure in map reduce trunk - MapReduce - [mail # dev]
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...Tharindu, Looks like protoc is not available. Cannot run program "protoc" (in directory "HOME/hadoop-trunk/hadoop- mapreduce/hadoop-yarn/hadoop-yarn-api"): error=2, No such file ...
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Author: Praveen Sripati,
2011-08-25, 11:49
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Problem getting the code from SVN - MapReduce - [mail # dev]
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...Hi, When I try to get the code from svn, I get the below error. svn co http://svn.apache.org/repos/asf/hadoop/common/trunk/ A trunk/hadoop-mapreduce/bin/mapred...
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Author: Praveen Sripati,
2011-08-21, 13:50
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Re: MRv2 Configuration in Eclipse - MapReduce - [mail # dev]
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...Hi, I did spend some time on trying to run RM, NM and HS from within Eclipse, but got partial success. Here are the steps I followed (just in case someone is interested) - Got th...
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Author: Praveen Sripati,
2011-08-15, 14:29
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Re: MRv2 Configuration in Eclipse - MapReduce - [mail # dev]
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...Hi, I am able to run the RM, NM and HS from Eclipse with a couple of settings and run the org.apache.hadoop.examples.RandomWriter from command promptusing the 'hadoop jar' command. Wou...
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Author: Praveen Sripati,
2011-08-13, 17:10
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Re: Can't find main class when run ResourceManager or NodeManager - MapReduce - [mail # dev]
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...Hoayuan, RunJar is in the hadoop-common-0.23.0-SNAPSHOT.jar. Do a 'hadoop classpath' and check if the jar file is there in the classpath location. Similarly, running 'yarn classp...
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Author: Praveen Sripati,
2011-08-12, 02:32
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