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Re: Hive error when loading csv data. - Hadoop - [mail # user]
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...Alternatively you could write a simple script to convert the csv to a pipe delimited file so that "abc,def" will be abc,def. On Jun 26, 2012, at 2:51 PM, Harsh J wrote: som...
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Author: Michael Segel,
2012-06-26, 20:00
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Re: Can I remove a folder on HDFS when decommissioning a data node? - Hadoop - [mail # user]
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...Well, there you go... care to open a Jira for it? It would be very helpful... The OP's question presents a very good use case. Thx -Mike On Jun 26, 2012, at 10...
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Author: Michael Segel,
2012-06-26, 15:35
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Re: Can I remove a folder on HDFS when decommissioning a data node? - Hadoop - [mail # user]
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...Hi, Yes you can remove a file while there is a node or node(s) being decommissioned. I wonder if there's a way to manually clear out the .trash which may also give yo...
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Author: Michael Segel,
2012-06-26, 14:51
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Re: oozie workflow file for teragen and terasort - Hadoop - [mail # user]
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...There's a series of articles on Oozie by Boris Lublinsky over on InfoQ. http://www.infoq.com/articles/introductionOozie On Jun 23, 2012, at 7:42 PM, Hadoop James wrote: ...
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Author: Michael Segel,
2012-06-24, 14:49
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Re: Split brain - is it possible in hadoop? - Hadoop - [mail # user]
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...In your example, you only have one active Name Node. So how would you encounter a 'split brain' scenario? Maybe it would be better if you defined what you mean by a split brain? ...
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Author: Michael Segel,
2012-06-19, 12:47
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Re: Hardware specs calculation for io - Hadoop - [mail # user]
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...You will want something in between... 8 cores means 8 spindles. 16 cores means 16 spindles. You may want to up the memory, especially if you're running or thinking ...
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Author: Michael Segel,
2012-06-13, 18:52
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Re: Hadoop with Sharded MySql - Hadoop - [mail # user]
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...Ok just tossing out some ideas... Take them with a grain of salt... With hive you can create external tables. Write a custom Java app the creates one thread to each server. Then ...
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Author: Michael Segel,
2012-06-02, 00:09
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Re: Pragmatic cluster backup strategies? - Hadoop - [mail # user]
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...Hi, That's not a back up strategy. You could still have joe luser take out a key file or directory. What do you do then? On May 29, 2012, at 11:19 AM, Darrell Taylor wrote:...
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Author: Michael Segel,
2012-05-29, 16:40
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Re: How to Integrate LDAP in Hadoop ? - Hadoop - [mail # user]
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...I believe that their CDH3u3 or later has this... parameter. (Possibly even earlier.) On May 29, 2012, at 6:12 AM, samir das mohapatra wrote: wrote: ...
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Author: Michael Segel,
2012-05-29, 14:13
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Re: is hadoop suitable for us? - Hadoop - [mail # user]
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...You are going to have to put HDFS on top of your SAN. The issue is that you introduce overhead and latencies by having attached storage rather than the drives physically on the ...
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Author: Michael Segel,
2012-05-18, 10:10
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