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Re: Hadoop and CUDA - HDFS - [mail # user]
...Please don't hijack a thread. Start your own discussion.  On Oct 16, 2012, at 1:34 AM, sudha sadhasivam   wrote:  necessary dependencies are added.  wrote: runs faster. W...
   Author: Michael Segel, 2012-10-18, 08:42
Re: Chaning Multiple Reducers: Reduce -> Reduce -> Reduce - HDFS - [mail # user]
...Jim,  You can use the combiner as a reducer albeit you won't get down to a  single reduce file output. But you don't need that.  As long as the output from the combiner matche...
   Author: Michael Segel, 2012-10-08, 22:50
Re: New Learner for Haddop and Hive - HDFS - [mail # user]
...How Jason ever got top billing, I'll never know. :-) (Just kidding Jason!)  Yes, that's the book.   -Mike  On Sep 7, 2012, at 1:14 PM, Robert Dyer  wrote:   wrote: &...
   Author: Michael Segel, 2012-09-07, 18:47
Re: Data loss on EMR cluster running Hadoop and Hive - HDFS - [mail # user]
...Next time, try reading and writing to S3 directly from your hive job.  Not sure why the block was bad... What did the AWS folks have to say?   -Mike  On Sep 4, 2012, at 11:30 ...
   Author: Michael Segel, 2012-09-04, 16:43
Re: Pi Estimator failing to print output after finishing the job sucessfully - HDFS - [mail # user]
...You blew out the stack?  Or rather your number was too 'big'/'long'?    On Sep 4, 2012, at 11:10 AM, Gaurav Dasgupta  wrote:  CDH3u4 cluster. ran fine and displayed ...
   Author: Michael Segel, 2012-09-04, 16:36
Re: SNN - HDFS - [mail # user]
...The other question you have to look at is the underlying start and stop  script to see what is being passed on to them.   I thought there was a parameter that would overload the de...
   Author: Michael Segel, 2012-09-04, 16:33
Re: how to execute different tasks on data nodes(simultaneously in hadoop). - HDFS - [mail # user]
...Not sure what you are trying to do...  You want to pass through the entire data set on all nodes where each  node runs a single filter?   You're thinking is orthogonal to how ...
   Author: Michael Segel, 2012-09-03, 16:25
Re: knowing the nodes on which reduce tasks will run - HDFS - [mail # user]
...The short answer is no.  The longer answer is that you can attempt to force data locality,  however even then if an open slot becomes available, its used regardless  of what y...
   Author: Michael Segel, 2012-09-03, 15:59
Re: Locked Job - HDFS - [mail # user]
...It depends...   If you are in Mapper.map() method and you 'lock', then you will most  certainly time out after 10min by default and the task dies. Enough  tasks die, then your...
   Author: Michael Segel, 2012-08-27, 13:19
Re: Encrypting files in Hadoop - Using the io.compression.codecs - HDFS - [mail # user]
...There is a bit of a difference between encryption and compression.   You're better off using coprocessors to encrypt the data as its being  written than trying to encrypt the actua...
   Author: Michael Segel, 2012-08-07, 12:40
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