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Re: MapReduce Failed and Killed - MapReduce - [mail # user]
...Any MapReduce task needs to communicate with the tasktracker that launched it periodically in order to let the tasktracker know it is still alive and active. The time for which silence is to...
   Author: Hemanth Yamijala, 2013-03-25, 05:30
Re: map reduce and sync - MapReduce - [mail # user]
...I am using the same version of Hadoop as you.  Can you look at something like Scribe, which AFAIK fits the use case you describe.  Thanks Hemanth   On Sun, Feb 24, 2013 at 3:3...
   Author: Hemanth Yamijala, 2013-02-25, 01:31
Re: Reg job tracker page - MapReduce - [mail # user]
...Yes. It corresponds to the JT start time.  Thanks hemanth   On Sat, Feb 23, 2013 at 5:37 PM, Manoj Babu  wrote:  ...
   Author: Hemanth Yamijala, 2013-02-23, 13:09
Re: Trouble in running MapReduce application - MapReduce - [mail # user]
...Can you try this ? Pick a class like WordCount from your package and execute this command:  javap -classpath  -verbose org.myorg.Wordcount | grep version.  For e.g. here's wha...
   Author: Hemanth Yamijala, 2013-02-23, 13:05
Re: OutOfMemoryError during reduce shuffle - MapReduce - [mail # user]
...There are a few tweaks In configuration that may help. Can you please look at http://hadoop.apache.org/docs/r1.0.4/mapred_tutorial.html#Shuffle%2FReduce+Parameters  Also, since you have...
   Author: Hemanth Yamijala, 2013-02-21, 01:41
Re: ClassNotFoundException in Main - MapReduce - [mail # user]
...Thats because the error is not related to the packaging. As mentioned in my last mail, downgrade the java version used for compiling your code from Jdk 7 to Jdk 6. If you are using an IDE, i...
   Author: Hemanth Yamijala, 2013-02-19, 17:05
Re: Database insertion by HAdoop - MapReduce - [mail # user]
...Sqoop can be used to export as well.  Thanks Hemanth  On Tuesday, February 19, 2013, Masoud wrote:  ...
   Author: Hemanth Yamijala, 2013-02-19, 15:52
Re: How to understand DataNode usages ? - MapReduce - [mail # user]
...This seems to be related to the % used capacity at a datanode. The values are computed for all the live datanodes, and the range / central limits / deviations are computed based on a sorted ...
   Author: Hemanth Yamijala, 2013-02-15, 04:10
Re: Java submit job to remote server - MapReduce - [mail # user]
...Can you please include the complete stack trace and not just the root. Also, have you set fs.default.name to a hdfs location like hdfs://localhost:9000 ?  Thanks Hemanth  On Wednes...
   Author: Hemanth Yamijala, 2013-02-13, 01:16
Re: Cannot use env variables in "hodrc" - MapReduce - [mail # user]
...Hi,  Hadoop On Demand is no longer supported with recent releases of Hadoop. There is no separate user list for HOD related questions.  Which version of Hadoop are you using right ...
   Author: Hemanth Yamijala, 2013-02-08, 08:01
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