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[MAPREDUCE-900] Proposed enhancements/tuning to hadoop-mapred/build.xml - MapReduce - [issue]
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...sibling list of HADOOP-6206 and HDFS-560, enhancements to the mapreduce build for easier single-system build/test...
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http://issues.apache.org/jira/browse/MAPREDUCE-900
Author: Steve Loughran,
2012-08-31, 16:23
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Re: Integrating hadoop with java UI application deployed on tomcat - MapReduce - [mail # user]
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...On 30 August 2012 13:54, Visioner Sadak wrote: no, that's warning you that the native code to help with some operations (especially compression) aren't loading as your JVM's nat...
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Author: Steve Loughran,
2012-08-30, 16:27
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Re: Integrating hadoop with java UI application deployed on tomcat - MapReduce - [mail # user]
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...you will need almost the entire hadoop client-side JAR set and dependencies for this, I'm afraid. The new webhdfs filesys -HDFS over HTTP- is designed to be lighter weight and only nee...
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Author: Steve Loughran,
2012-08-30, 11:52
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Re: Delays in worker node jobs - MapReduce - [mail # user]
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...if you increase the rate of TT heartbeating to the Job Tracker, they may pick up work more often. The JT only hands out work when either of -the TT reports a task completion &nbs...
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Author: Steve Loughran,
2012-08-30, 11:49
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Re: want to Switch to Cloudera Hadoop distribution - MapReduce - [mail # user]
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...On 30 August 2012 11:45, Sujit Dhamale wrote: If you really want to play with YARN, I'd recommend getting the Apache beta releases *and filing bugs against it* YARN ...
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Author: Steve Loughran,
2012-08-30, 11:46
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[MAPREDUCE-3432] Yarn doesn't work if JAVA_HOME isn't set - MapReduce - [issue]
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...libexec/hadoop-config.sh does reliably work out JAVA_HOME for many platforms. unfortunately, the yarn scripts don't use it. As such you get told off when you try to run yarn$ bin/yarn resour...
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http://issues.apache.org/jira/browse/MAPREDUCE-3432
Author: Steve Loughran,
2012-08-29, 13:00
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Re: Hadoop and MainFrame integration - MapReduce - [mail # user]
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...On 28 August 2012 09:24, Siddharth Tiwari wrote: Can you NFS-mount the mainframe filesystem from the Hadoop cluster? Otherwise, do you or your mainframe vendor have a custom Hado...
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Author: Steve Loughran,
2012-08-28, 17:57
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Re: Hadoop 1.0.3 (nutch-1.5.1) throwing errors on AIX 6.1 - MapReduce - [mail # user]
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...On 24 August 2012 06:49, James F Walton wrote: I tried running Hadoop on JRockit a few years back; after being the only person to file JIRAs related to that JVM I reverted...
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Author: Steve Loughran,
2012-08-27, 01:49
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Re: Hadoop 1.0.3 (nutch-1.5.1) throwing errors on AIX 6.1 - MapReduce - [mail # user]
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...This is something you ought to raise with the IBM JVM team, as it does appear to be a bug in their JVM. On 21 August 2012 10:11, James F Walton wrote: ...
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Author: Steve Loughran,
2012-08-22, 19:07
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Re: HDFS disable balancing cluster - MapReduce - [mail # user]
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...you can bring up new worker nodes without the datanode service, just the task tracker. these become compute only nodes that load and save all their data on the (mostly) persistent core...
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Author: Steve Loughran,
2012-08-17, 15:09
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