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Understanding evalfunc schema - Pig - [mail # user]
...I am trying to understand how I can add schema such that I get 2 or more tuples in a bag. Is this the right way of doing this? For some reason the second tuple_of_token1 always comes out nul...
   Author: Mohit Anchlia, 2012-09-08, 23:14
Splitting tuples in a Bag - Pig - [mail # user]
...In following example is it possible to split the 2 tuples and write it into separate files? There is only one "," separated chararray field in a tuple.  ({(1,accountOwner,1),(2,accountO...
   Author: Mohit Anchlia, 2012-09-08, 21:21
[expand - 1 more] - RE: REPLACE with backslash - Pig - [mail # user]
...You mean instead of  REPLACE(name,'dir','\\\\\\\\test\\\\sub'); Using  REPLACE(name,'dir','[\\]test[\]sub'); ?  It seems not working for me.  Thanks. Dan  From: Віта...
   Author: Danfeng Li, 2012-09-08, 20:44
[expand - 3 more] - Re: Data blocks are not cached on read in Hbase0.94 - HBase - [mail # user]
...That's right. Please note the default value for this parameter:    public static final boolean DEFAULT_BLOCKCACHE = true;   On Sat, Sep 8, 2012 at 9:37 AM, jlei liu  wrot...
   Author: Ted Yu, 2012-09-08, 20:26
[HDFS-3621] Add a main method to HdfsConfiguration, for debug purposes - HDFS - [issue]
...Just like Configuration has a main() func that dumps XML out for debug purposes, we should have a similar function under the HdfsConfiguration class that does the same. This is useful in tes...
http://issues.apache.org/jira/browse/HDFS-3621    Author: Harsh J, 2012-09-08, 19:49
[HDFS-3886] Shutdown requests can possibly check for checkpoint issues (corrupted edits) and save a good namespace copy before closing down? - HDFS - [issue]
...HDFS-3878 sorta gives me this idea. Aside of having a method to download it to a different location, we can also lock up the namesystem (or deactivate the client rpc server) and save the nam...
http://issues.apache.org/jira/browse/HDFS-3886    Author: Harsh J, 2012-09-08, 19:40
Re: Eclipse plugin not available in contrib folder - MapReduce - [mail # user]
...The 0.20.203 plugin will not work with 1.x versions, as 0.20.205 (and 1.0.0) broke backwards compatibility on the RPC side. You will need to recompile the eclipse plugin from the src/contrib...
   Author: Harsh J, 2012-09-08, 19:35
Re: hadoop fs -tail - Hadoop - [mail # user]
...We should be able to extend the Tail command to allow a size specifier. Could you file a JIRA for this?  Although, I don't think the tail prints newlines at every gap unless there's a n...
   Author: Harsh J, 2012-09-08, 19:34
Re: group assignment on HDFS from Hadoop and Hive - MapReduce - [mail # user]
...Hi Chen,  Inline.  On Mon, Aug 13, 2012 at 9:51 PM, Chen Song  wrote:  A good article on how the group resolution generally works on Hadoop (on defaults) can be found her...
   Author: Harsh J, 2012-09-08, 19:33
Re: how to query jobtracker for FairScheduler pools and configuration? - MapReduce - [mail # user]
...Unfortunately there's no easy way to do that. It doesn't seem to have any metrics exposed in any other form aside of the web servlet it offers.  However, the FairScheduler does have an ...
   Author: Harsh J, 2012-09-08, 19:32
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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