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[HIVE-2780] Implement more restrictive table sampler - Hive - [issue]
...Current table sampling scans whole block, making more rows included than expected especially for small tables....
http://issues.apache.org/jira/browse/HIVE-2780    Author: Navis, 2013-02-25, 08:52
Re: Correlation function out of memory error - Pig - [mail # user]
...Hi Johnny,  Thank you for your help. Yes indeed, setting mapred.min.split.size to 1 or 10Mb increased greatly the number of mapper and thus made the job complete successfully. For the r...
   Author: Houssam, 2013-02-25, 08:30
[expand - 2 more] - Re: Slow MR time and high network utilization with all local data - MapReduce - [mail # user]
...Thanks for pointing me towards short circuit!  I dug around and couldnt find in the logs any mention of the local reader loading, and then spotted a config error.  So when I used H...
   Author: Robert Dyer, 2013-02-25, 08:17
[expand - 2 more] - Re: Errors come out when starting Balancer - MapReduce - [mail # user]
...Hi    That is  great helpfull.Thank you very much.  regards   2013/2/25 Harsh J  ...
   Author: YouPeng Yang, 2013-02-25, 07:55
[PIG-3219] Script to run Pig ant targets on AWS - Pig - [issue]
...During the Pig 11 release I wrote a script to install software required to build Pig on ec2 instances before running the build. This script could be helpful for future releases or for runnin...
http://issues.apache.org/jira/browse/PIG-3219    Author: Bill Graham, 2013-02-25, 07:31
[expand - 1 more] - Re: childerror - Hadoop - [mail # user]
...Given your other thread post, I'd say you may have an inconsistency in the JDK deployed on the cluster. We generally recommend using the Oracle JDK6 (for 1.0.4). More details on which versio...
   Author: Harsh J, 2013-02-25, 07:27
[expand - 4 more] - Re: One NameNode keeps Rolling Edit Log on HDFS Federation - HDFS - [mail # user]
...Could you send us the log messages (with timestamps) which you think is behind the behavior you see? The new edit log format is different than the one in 1.x, and uses several smaller edit l...
   Author: Harsh J, 2013-02-25, 07:16
[YARN-423] Create a simple prioritized task assignment module - YARN - [issue]
...Most AM's need basic container to task assignment based on priority and location. Writing such a module would solve a large majority of use cases and help further hide the complexity of reso...
http://issues.apache.org/jira/browse/YARN-423    Author: Bikas Saha, 2013-02-25, 07:01
[HIVE-3326] plan for multiple mapjoin followed by a normal join is wrong - Hive - [issue]
...example queries:create table yudi(c1 int, c2 int, c3 int, c4 int);create table wangmu(c1 int, c2 int, c3 int, c4 int);select /*+mapjoin(b,c)*/ * from yudi a join yudi b on a.c1=b.c1 join wan...
http://issues.apache.org/jira/browse/HIVE-3326    Author: Zhang Xinyu, 2013-02-25, 06:52
[HIVE-3784] de-emphasize mapjoin hint - Hive - [issue]
...hive.auto.convert.join has been around for a long time, and is pretty stable.When mapjoin hint was created, the above parameter did not exist.The only reason for the user to specify a mapjoi...
http://issues.apache.org/jira/browse/HIVE-3784    Author: Namit Jain, 2013-02-25, 06:52
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB