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Re: Ordinary file pointer? - Hadoop - [mail # user]
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...Keith, On Sat, May 22, 2010 at 5:01 AM, Keith Wiley wrote: ++ side I need to access a file. I have already implemented a version of this interface in which the file is rea...
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Author: Hemanth Yamijala,
2010-05-22, 10:37
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Re: Basic Hadoop Doubt - Hadoop - [mail # dev]
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...Vamsi, Conceptually, it would be more accurate to say that it splits the data into 'blocks' that are managed in HDFS. Of course, implementation-wise, these blocks do get stored on phy...
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Author: Hemanth Yamijala,
2010-05-18, 02:08
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Re: Setting up a second cluster and getting a weird issue - Hadoop - [mail # user]
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...Andrew, ia NFS. I don't see how this would cause a conflict - do you have any additional information? FWIW, we had an experience where we were storing config files on NFS ...
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Author: Hemanth Yamijala,
2010-05-15, 02:41
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Re: Task scheduler - Hadoop - [mail # dev]
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...Saurabh, e Sorry, I misunderstood your question then. This code is in o.a.h.mapred.JobInProgress. It is likely spread across many methods in the class. But a good starting point ...
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Author: Hemanth Yamijala,
2010-05-14, 04:19
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Re: Task scheduler - Hadoop - [mail # dev]
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...Saurabh, Take a look at o.a.h.mapred.TaskScheduler. That's the abstract class that needs to be extended to define a new scheduling policy. Also, please do take a look at the existing ...
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Author: Hemanth Yamijala,
2010-05-14, 01:34
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Re: Eclipse plugin - Hadoop - [mail # user]
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...Jim, It would help to know what exact (dot/update) version of Java 6 you are using. I ran into a problem recently where I was using one of the earliest versions of Java 6, where the c...
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Author: Hemanth Yamijala,
2010-05-07, 02:02
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Re: separate JVM flags for map and reduce tasks - Hadoop - [mail # user]
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...Vasilis, In trunk, (I haven't checked in earlier versions), there are already options such as mapreduce.map.java.opts and mapreduce.reduce.java.opts. Strangely, these are not document...
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Author: Hemanth Yamijala,
2010-04-23, 02:37
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Re: How to make HOD apply more than one core on each machine? - Hadoop - [mail # user]
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...Song, way the ppn value with HOD. You could look at src/contrib/hod/hodlib/NodePools/torque.py, and specifically the method process_qsub_attributes. In this method, the nodes par...
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Author: Hemanth Yamijala,
2010-04-21, 18:05
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Re: How to make HOD apply more than one core on each machine? - Hadoop - [mail # user]
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...Song, t to er If I understand, what you want is that when a physical node is allocated via HOD by the Torque resource manager, you don't want that node to be shared by other jobs...
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Author: Hemanth Yamijala,
2010-04-16, 10:50
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Re: How to make HOD apply more than one core on each machine? - Hadoop - [mail # user]
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...Song, sical I assume what you want is the Map/Reduce cluster that is started by HOD to use more than core on each machine. You can configure this in the gridservice-mapred sectio...
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Author: Hemanth Yamijala,
2010-04-15, 18:01
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