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Re: Get Current Block or Split ID, and using it, the Block Path - Hadoop - [mail # user]
...I think if you called getInputFormat on JobConf and then called getSplits you would atleast get the locations.  http://hadoop.apache.org/common/docs/current/api/org/apache/hadoop/mapred...
   Author: Mohit Anchlia, 2012-04-08, 16:36
Re: Doubt from the book "Definitive Guide" - Hadoop - [mail # user]
...On Wed, Apr 4, 2012 at 10:02 PM, Prashant Kommireddi wrote:  Only advantage I was thinking of was that in some cases reducers might be able to take advantage of data locality and avoid ...
   Author: Mohit Anchlia, 2012-04-05, 14:03
Number of retries - Hadoop - [mail # user]
...I am seeing wierd problem where I am seeing duplicate rows in the database. I am wondering if this is because of some internal retries that might be causing this. Is there a way to look at w...
   Author: Mohit Anchlia, 2012-03-22, 19:51
Re: setNumTasks - Hadoop - [mail # user]
...Sorry I meant *setNumMapTasks. *What is mapred.map.tasks for? It's confusing as to what it's purpose is for? I tried setting it for my job still I see more map tasks running than *mapred.map...
   Author: Mohit Anchlia, 2012-03-22, 14:58
Re: Snappy Error - Hadoop - [mail # user]
...Looks like org.apache.hadoop.io.compress.SnappyCodec is not in the classpath?  On Thu, Mar 22, 2012 at 4:30 AM, hadoop hive  wrote:  ...
   Author: Mohit Anchlia, 2012-03-22, 14:23
Re: EOFException - Hadoop - [mail # user]
...I guess I am trying to see how to debug such problems? I don't see enough info in the logs.   On Mon, Mar 19, 2012 at 12:48 AM, madhu phatak  wrote:  ...
   Author: Mohit Anchlia, 2012-03-19, 14:26
Re: SequenceFile split question - Hadoop - [mail # user]
...Thanks! that helps. I am reading small xml files from external file system and then writing to the SequenceFile. I made it stand alone client thinking that mapreduce may not be the best way ...
   Author: Mohit Anchlia, 2012-03-15, 14:47
Cannot renew lease for DFSClient_977492582. Name node is in safe mode in AWS - Hadoop - [mail # user]
...When I run client to create files in amazon HDFS I get this error. Does anyone know what it really means and how to resolve this?    2012-03-14 23:16:21,414 INFO org.apache.hadoop....
   Author: Mohit Anchlia, 2012-03-15, 00:24
Re: mapred.tasktracker.map.tasks.maximum not working - Hadoop - [mail # user]
...Thanks. Looks like there are some parameters that I can use at client level and others need cluster wide setting. Is there a place where I can see all the config parameters with description ...
   Author: Mohit Anchlia, 2012-03-10, 17:14
Re: mapred.map.tasks vs mapred.tasktracker.map.tasks.maximum - Hadoop - [mail # user]
...Is this system parameter too? Or can I specify as mapred.map.tasks? I am using pig.  On Fri, Mar 9, 2012 at 6:19 PM, Chen He  wrote:  ...
   Author: Mohit Anchlia, 2012-03-10, 04:34
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