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[expand - 1 more] - Re: SCALING GENETIC ALGORITHMS USING MAPREDUCE - Hadoop - [mail # general]
...Hi Alberto,  The paper considers only selecto-recombinative genetic algorithms as mentioned in Section III.A. The mutation operators could be done on the reduce  after the crossove...
   Author: Abhishek Verma, 2010-01-13, 23:44
Re: NPE in TableInputFormatBase$TableRecordReader.restart() (line 110) - HBase - [mail # user]
...On Tue, Jan 12, 2010 at 1:05 PM, Buttler, David  wrote:    My guess is that its something to do with your environment -- that and then we're not handling whatever it is gracef...
   Author: stack, 2010-01-13, 23:33
[expand - 3 more] - Re: Problems with write performance (25kb rows) - HBase - [mail # user]
...On Wed, Jan 13, 2010 at 4:35 AM, Dmitriy Lyfar  wrote:    Yes, I see that in the log.     This seems low for your 6 node cluster.  If you look at the servers, a...
   Author: stack, 2010-01-13, 23:23
[expand - 6 more] - Re: Exponential performance decay when inserting large number of blocks - HDFS - [mail # user]
...Zlatin, i dont know what is the nature of the job that you are running but it looks like you are hitting an io bottleneck, try to multiple the size of input data and test with 3-5GB at least...
   Author: alex kamil, 2010-01-13, 23:08
[expand - 1 more] - Re: Piglet: a Ruby DSL for writing Pig scripts - Pig - [mail # user]
...Theo,  This looks really interesting.  Can I put a link to it on our page for   tools use with Pig, http://wiki.apache.org/pig/PigTools ?  Alan.  On Jan 13, 2010, at...
   Author: Alan Gates, 2010-01-13, 23:02
[HIVE-676] code cleanup in mapredWork - Hive - [issue]
...mapredWork currently contains:pathToAliasaliasToPartnInfopathToPartnInfopathToPartnInfo can be derived from pathToAlias and aliasToPartnInfo - it should be removed...
http://issues.apache.org/jira/browse/HIVE-676    Author: Namit Jain, 2010-01-13, 23:02
[expand - 10 more] - Re: commit semantics - HBase - [mail # dev]
...Good idea, let me try it.  J-D  On Wed, Jan 13, 2010 at 11:01 AM, Joydeep Sarma  wrote te: n as I g>wrote: of org e. m> ance cked on s  to ers y)....
   Author: Jean-Daniel Cryans, 2010-01-13, 22:56
[expand - 7 more] - Re: Java client problem w/ zookeeper - HBase - [mail # user]
...I wonder what the 'node' is that its complaining about?  It doesn't say.  I wonder if you did DEBUG for zk if you'd learn more?  Could enable it on the problematic client only...
   Author: stack, 2010-01-13, 22:54
[CASSANDRA-626] Polymorphic status of keys as byte[] and String is confusing - Cassandra - [issue]
...As part of some experiments with Cassandra, I wanted to build a column space with row keys that are Long (64-bit binary blocks) and column names that are Long, and this seems to be supported...
http://issues.apache.org/jira/browse/CASSANDRA-626    Author: Paul R. Brown, 2010-01-13, 22:17
[expand - 1 more] - Re: java.io.FileNotFoundException - MapReduce - [mail # user]
...No, with tmp folder settings all ok. The problem is if follow code in map reduce framework:  TaskRunner.java    public static void setupWorkDir(JobConf conf) throws IOExceptio...
   Author: ruslan usifov, 2010-01-13, 22:09
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