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Re: MultipleOutputFormat - MapReduce - [mail # user]
...  * Generate the file output file name based on the given key and the leaf file    * name. The default behavior is that the file name does not depend on the    * key...
   Author: Ted Yu, 2010-10-31, 21:10
Re: How to modify heartbeat message and its return message? - MapReduce - [mail # user]
...Take a look at FSNamesystem.heartbeatCheck()  On Wed, Oct 27, 2010 at 5:21 PM, Shen LI  wrote:  ...
   Author: Ted Yu, 2010-10-28, 08:35
Re: ClassCastException - MapReduce - [mail # user]
...Have you checked http://download.oracle.com/javase/6/docs/api/javax/xml/stream/XMLEventReader.html?  On Thu, Oct 7, 2010 at 5:49 PM, Johannes.Lichtenberger  wrote:  ...
   Author: Ted Yu, 2010-10-08, 00:52
Re: how to set system properties for mapper/reducer? - MapReduce - [mail # user]
...If you look at the parameters passed to your mapper/reducer, you should see something like this:  -Djava.library.path=/opt//hadoop/bin/../lib/native/Linux-amd64-64:/tmp/hadoop-hadoop/ma...
   Author: Ted Yu, 2010-10-08, 00:48
[MAPREDUCE-2098] Extra url encoding makes jobdetailshistory.jsp report FileNotFoundException - MapReduce - [issue]
...In cdh3b2, when viewing :50030/jobdetailshistory.jsp?jobid=job_201009172356_0007&logFile=file%3A%2Fopt%2Fmsip%2Fclients%2FCIQ-Performance%2Fm2mDeployment%2Fhadoop%2Flogs%2Fhistory%2Fdone...
http://issues.apache.org/jira/browse/MAPREDUCE-2098    Author: Ted Yu, 2010-09-29, 20:02
JMock - MapReduce - [mail # dev]
...Hi, If you use JMock for unit testing mapred, please drop me a line.  Thanks...
   Author: Ted Yu, 2010-09-27, 22:02
Re: MiniMRCluster not found - MapReduce - [mail # user]
...The source code is located at hadoop-0.20.2+320//src/test/org/apache/hadoop/mapred/MiniMRCluster.java  On Sun, Sep 26, 2010 at 2:23 PM, Johannes.Lichtenberger  wrote:  ...
   Author: Ted Yu, 2010-09-26, 21:34
Re: Remote connection bottleneck? - MapReduce - [mail # user]
...Why didn't you issue the command from window which had ssh ?  On Sat, Sep 25, 2010 at 6:53 PM, Mario M  wrote:  ...
   Author: Ted Yu, 2010-09-26, 02:22
heap dump on GC overhead limit exceeded error - MapReduce - [mail # dev]
...Hi, We use the following for mapred.child.java.opts:  -Xmx3800m -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/usr/local/hadoop/hprof -XX:ErrorFile=/usr/local/hadoop/hadoop/logs/user...
   Author: Ted Yu, 2010-09-20, 01:27
[MAPREDUCE-2080] Reducer JVM process hangs - MapReduce - [issue]
...We use cdh3b2After reducer took more than 600 seconds to report to tasktracker, tasktracker tried to kill it.However reducer JVM process hung.Attaching stack trace of reducer....
http://issues.apache.org/jira/browse/MAPREDUCE-2080    Author: Ted Yu, 2010-09-19, 21:46
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