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Re: object Writable and Serialization - MapReduce - [mail # user]
...Old bits:  Can you try adding 'org.apache.hadoop.io. serializer.JavaSerialization,' to the following config ? "C:\hadoop-0.20.2\src\core\core-default.xml"(87,9):   io.serialization...
   Author: Ted Yu, 2010-12-10, 15:50
Re: How to share Same Counter in Multiple Jobs? - MapReduce - [mail # user]
...I wrote the following code today. We have our own flow execution logic which calls the following to collect counters.      enum COUNT_COLLECTION {         ...
   Author: Ted Yu, 2010-12-10, 05:51
Re: Memory Manager in Hadoop MR - MapReduce - [mail # user]
...For 1, TMMT uses ProcessTree to check for task that is running beyond memory-limits and kills it.  On Thu, Dec 9, 2010 at 3:05 AM, Pedro Costa  wrote:  ...
   Author: Ted Yu, 2010-12-09, 18:17
Re: task statistics - MapReduce - [mail # user]
...We use the following in our client:         JobClient jobClient = new JobClient(jobConf);         TaskReport[] mapTaskReports  jobClient.getMapTa...
   Author: Ted Yu, 2010-12-06, 21:22
Re: obtain task log programmatically - MapReduce - [mail # dev]
...Dick: Your patch is not in Apache release yet. Do you know when it would be ?  Thanks  On Tue, Nov 30, 2010 at 11:28 AM, Dick King  wrote:  ...
   Author: Ted Yu, 2010-12-02, 15:52
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...
   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:  ...
   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
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