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Re: using pipe in the command executed by slaves.sh - MapReduce - [mail # dev]
...[hadoop@us01-ciqps1-name01 ~]$ slaves.sh '/usr/java/default/bin/jps | /bin/grep Child | /usr/bin/wc -l' us01-ciqps1-grid01.carrieriq.com: bash: /usr/java/default/bin/jps : No such file or di...
[+ more]    Author: Ted Yu, 2010-11-25, 13:01
Re: Migrating from mapred to mapreduce API - MapReduce - [mail # user]
...You can get the source code here: http://archive.cloudera.com/cdh/3/hadoop-0.20.2+320.tar.gz  On Thu, Nov 18, 2010 at 4:21 PM, Srihari Anantha Padmanabhan  wrote:  ...
[+ more]    Author: Ted Yu, 2010-11-19, 00:29
spill taking too long - MapReduce - [mail # dev]
...Hi, We use cdh3b2. We sometimes see maptask timeout. Here is log from one of the maptasks:  2010-11-04 10:34:23,820 INFO org.apache.hadoop.mapred.MapTask: Spilling map output: buffer fu...
   Author: Ted Yu, 2010-11-04, 18:36
[MAPREDUCE-2174] Introduce timeout in bin/slaves.sh - MapReduce - [issue]
...If connection to one slave has problem, slaves.sh appears to hang.We can incorporate timeout mechanism by using the script from Dmitry V Golovashkin...
http://issues.apache.org/jira/browse/MAPREDUCE-2174    Author: Ted Yu, 2010-11-03, 23:26
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:  ...
[+ more]    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:  ...
[+ more]    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...
[+ more]    Author: Ted Yu, 2010-10-08, 00:48
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
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