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Re: Regarding loading a big XML file to HDFS - Hadoop - [mail # user]
...If your file is bigger than a block size (typically 64mb or 128mb), then it w ill be split into more than one block. The blocks may or may not be stored o n different datanodes. If you're us...
   Author: Joey Echeverria, 2011-11-22, 11:20
Re: HBase Stack - Hadoop - [mail # user]
...You can certainly run HBase on a single server, but I don't think you'd want to. Very few projects ever reach a scale where a single MySQL server can't handle it. In my opinion, you should s...
   Author: Joey Echeverria, 2011-11-15, 19:55
[expand - 1 more] - Re: Slow shuffle stage? - Hadoop - [mail # user]
...You can enable speculative execution on a per-job basis, assuming your administrator hasn't marked it final. The parameter you want is mapred.map.tasks.speculative.execution.  -Joey &nb...
   Author: Joey Echeverria, 2011-11-11, 16:43
Re: Hadoop PseudoDistributed configuration - Hadoop - [mail # user]
...What is your setting for fs.default.name?  -Joey  On Nov 8, 2011, at 5:54, Paolo Di Tommaso  wrote:   Distributed k...
   Author: Joey Echeverria, 2011-11-08, 12:06
Re: someone know how to install hadoop0.20 on hp-ux? - Hadoop - [mail # user]
...You need to create a log directory on your TaskTracker nodes:   /opt/ecip/BMC/hadoopTest/hadoop-  Make sure the directory is writable by the mapred user, or which e...
   Author: Joey Echeverria, 2011-11-04, 11:36
Re: Question about superuser and permissions - Hadoop - [mail # user]
...When you get the handle to the FileSystem object you can connect as a different user:  http://hadoop.apache.org/common/docs/r0.20.203.0/api/org/apache/hadoop/fs/F ileSystem.html#get(jav...
   Author: Joey Echeverria, 2011-11-03, 22:30
Re: Hadoop 0.20.2 and JobConf deprecation - Hadoop - [mail # user]
...A new API was introduced with Hadoop 0.20. However, that API is not feature complete. Despite the fact that the old API is marked as deprecated, it's still the recommended, full feature API....
   Author: Joey Echeverria, 2011-11-03, 17:45
[expand - 1 more] - Re: map task attempt progress at 400%? - Hadoop - [mail # user]
...The first thing I would check is that your mappers are processing the same amount of data. I'm not familiar with the Cassandra InputFormat, but if it doesn't properly split the data, then yo...
   Author: Joey Echeverria, 2011-11-03, 14:56
Re: Hadoop + cygwin - Hadoop - [mail # user]
...What are the permissions on \tmp\hadoop-cyg_server\mapred\local\ttprivate?  Which user owns that directory?  Which user are you starting you TaskTracker as?  -Joey  On We...
   Author: Joey Echeverria, 2011-11-03, 11:19
Re: Problem using SCM - Hadoop - [mail # user]
...Hi Trang,  I'm moving the discuss to [EMAIL PROTECTED] as it's not a Hadoop common issue. I've bcced [EMAIL PROTECTED] and also put you in the to: field in case you're not on scm-users....
   Author: Joey Echeverria, 2011-11-01, 12:27
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