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Re: Accessing global Counters - Hadoop - [mail # user]
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...Actually it's easier to use dynamic counters... Sent from a remote device. Please excuse any typos... Mike Segel On Apr 20, 2012, at 11:36 AM, Amith D K wrote: ...
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Author: Michel Segel,
2012-04-20, 21:41
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Re: How to rebuild NameNode from DataNode. - Hadoop - [mail # user]
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...Switch to MapR M5? Just kidding. Simple way of solving this pre CDH4... NFS mount a directory from your SN and add it to your list of checkpoint dir ectories. You may lose some d...
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Author: Michel Segel,
2012-04-19, 11:18
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Re: Setting a timeout for one Map() input processing - Hadoop - [mail # user]
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...Multiple threads within the mapper where you have the main thread starting a timeout thread and a process thread. Take the result of the thread that fin ishes first, ignoring the other...
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Author: Michel Segel,
2012-04-18, 13:18
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Re: where are my logging output files going to? - Hadoop - [mail # user]
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...First you really don't want to launch the job from the cluster but from an e dge node. To answer your question, in a word, yes, you should have a consistent set of configuration ...
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Author: Michel Segel,
2012-03-28, 07:51
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Re: Control Resources / Cores assigned for a job - Hadoop - [mail # user]
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...Fair scheduler? Sent from a remote device. Please excuse any typos... Mike Segel On Mar 16, 2012, at 5:54 PM, Deepak Nettem wrote: ...
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Author: Michel Segel,
2012-03-17, 01:03
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Re: Should splittable Gzip be a "core" hadoop feature? - Hadoop - [mail # user]
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... I do agree that a git hub project is the way to go unless you could convinc e Cloudera, HortonWorks or MapR to pick it up and support it. They have eno ugh committers Is t...
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Author: Michel Segel,
2012-03-01, 12:34
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Re: Should splittable Gzip be a "core" hadoop feature? - Hadoop - [mail # user]
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...Let's play devil's advocate for a second? Why? Snappy exists. The only advantage is that you don't have to convert from gzip to snappy and can process gzip files natively. ...
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Author: Michel Segel,
2012-02-29, 12:10
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Re: working with SAS - Hadoop - [mail # user]
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...Both responses assume replacing SAS w a Hadoop cluster. I would agree that going to EC2 might make sense in terms of a PoC before in vesting in a physical cluster, but we need to know more a...
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Author: Michel Segel,
2012-02-06, 12:50
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Re: Too many open files Error - Hadoop - [mail # user]
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...Sorry going from memory... As user Hadoop or mapred or hdfs what do you see when you do a ulimit -a? That should give you the number of open files allowed by a single user... Sent fro...
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Author: Michel Segel,
2012-01-26, 11:58
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Re: Problems with timeout when a Hadoop job generates a large number of key-value pairs - Hadoop - [mail # user]
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...Steve, If you want me to debug your code, I'll be glad to set up a billable contrac t... ;-) What I am willing to do is to help you to debug your code... Did you time how long it...
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Author: Michel Segel,
2012-01-20, 20:18
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