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Re: MapReduce compilation error - Hadoop - [mail # dev]
...Today I ran into the same error and I was puzzled by the content of this file. What is the purpose of a test file that appears to have a deliberate error and no code what so ever?   201...
   Author: Niels Basjes, 2011-05-18, 20:00
Re: Unsplittable files on HDFS - Hadoop - [mail # user]
...Hi,  I did the following with a 1.6GB file    hadoop fs -Ddfs.block.size=2147483648 -put /home/nbasjes/access-2010-11-29.log.gz /user/nbasjes and I got  Total number of b...
[+ more]    Author: Niels Basjes, 2011-04-27, 09:48
Re: Re-generate datanode storageID? - Hadoop - [mail # user]
...Hi,  To solve that simply do the following on the problematic nodes: 1) Stop the datanode (probably not running) 2) Remove everything inside the .../cache/hdfs/ 3) Start the datanode ag...
   Author: Niels Basjes, 2011-03-24, 19:48
Re: TextInputFormat and Gzip encoding - wordcount displaying binary data - Hadoop - [mail # user]
...Hi,  2011/3/21 Saptarshi Guha :  No, .zip is "pkzip" and .gz is gzip.  The applicable hadoop code actually chooses the decompressor on the extention of the filename.  Nie...
   Author: Niels Basjes, 2011-03-21, 23:01
Re: File formats in Hadoop - Hadoop - [mail # user]
...And then there is the matter of how you put the data in the file. I've heard that some people write the data as protocolbuffers into the sequence file.  2011/3/19 Harsh J :    ...
   Author: Niels Basjes, 2011-03-20, 11:04
Re: Efficiently partition broadly distributed keys - Hadoop - [mail # user]
...Hi Luca,  2011/3/10 Luca Aiello :   "hadoop embedded" tool to do this. This is what I suspected indeed.  The mapreduce model simply uses the  as the pivot of the processi...
[+ more]    Author: Niels Basjes, 2011-03-10, 22:07
Re: Comparison between Gzip and LZO - Hadoop - [mail # user]
...Question: Are you 100% sure that nothing else was running on that system during the tests? No cron jobs, no "makewhatis" or "updatedb"?  P.S. There is a permission issue with downloadin...
   Author: Niels Basjes, 2011-03-02, 20:16
Re: How to make a CGI with HBase? - Hadoop - [mail # user]
...Hi,  Is there a very basic example on such a KISS interface towards a HBase tabl e?  Thanks  2011/3/1 Michael Segel : straight to it. Base is a learning curve. You might want ...
   Author: Niels Basjes, 2011-03-01, 20:29
Re: Hadoop in Real time applications - Hadoop - [mail # user]
...2011/2/17 Karthik Kumar :  Hadoop consists of several components. Components like HDFS and HBase are quite suitable for "interactive" solutions (as in: I usually get an answer within 0....
   Author: Niels Basjes, 2011-02-17, 08:39
Bug in the Hudson QA? - Hadoop - [mail # dev]
...Yesterday I uploaded a patch and the Hadoop QA responded some 30 minutes later with:  +1 javadoc. The javadoc tool did not generate any warning messages. ... Test results: https://hudso...
   Author: Niels Basjes, 2011-02-06, 22:36
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