Hi

2009-07-06 Thread jayavardhan p
Hi, This is jayavardhan.I'm new to this Hadoop.I went to develop a project on cloud computing.Can you suggest me in a proper way to develop this. Looking forward for your message. Regards jayavardhan

[jira] Reopened: (HADOOP-5482) org.apache.hadoop.mapred.lib.db.DBInputformat not working with oracle

2009-07-06 Thread Aaron Kimball (JIRA)
[ https://issues.apache.org/jira/browse/HADOOP-5482?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Aaron Kimball reopened HADOOP-5482: --- This issue was marked "Resolved" but it was never applied to the 20 branch or trunk (for that m

Re: Need help understanding the source

2009-07-06 Thread Ted Dunning
I would consider this to be a very delicate optimization with little utility in the real world. It is very, very rare to reliably know how many records the reducer will see. Getting this wrong would be a disaster. Getting it right would be very difficult in almost all cases. Moreover, this assu

Re: Need help understanding the source

2009-07-06 Thread Naresh Rapolu
Hello Todd, My aim is to make the reduce move ahead with reduction as and when it gets the data required, instead of waiting for all the maps to complete. If it knows how many records it needs and compares it with number of records it has got until now, it can move on once they become equal wit

Re: Need help understanding the source

2009-07-06 Thread Naresh Rapolu
Hello Todd, My aim is to make the reduce move ahead with reduction as and when it gets the data required, instead of waiting for all the maps to complete. If it knows how many records it needs and compares it with number of records it has got until now, it can move on once they become equal wit

Re: unsubscribe

2009-07-06 Thread Haoran Yi
On Mon, Jul 6, 2009 at 12:51 PM, Haoran Yi wrote: > > > On Mon, Jul 6, 2009 at 12:42 PM, Haoran Yi wrote: > >> please unsubscribe me from the maillist. >> --thanks. >> > >

[jira] Created: (HADOOP-6127) The real user name should be used by bin/hadoop fs (ie. FsShell) instead of the one in the configuration.

2009-07-06 Thread Owen O'Malley (JIRA)
The real user name should be used by bin/hadoop fs (ie. FsShell) instead of the one in the configuration. - Key: HADOOP-6127 URL: https://issues.apache.org/jir

Re: Need help understanding the source

2009-07-06 Thread Todd Lipcon
Hi Naresh, You may be better off rephrasing your question at a higher level. What exactly are you trying to accomplish? The code you're citing is very "internal" and not meant to be touched by user-level code. -Todd On Sun, Jul 5, 2009 at 11:13 AM, Naresh Rapolu wrote: > > Hello, > > In Reduc

[jira] Created: (HADOOP-6126) Hadoop QA mails on Patch tests do not have links to test failures

2009-07-06 Thread Jothi Padmanabhan (JIRA)
Hadoop QA mails on Patch tests do not have links to test failures - Key: HADOOP-6126 URL: https://issues.apache.org/jira/browse/HADOOP-6126 Project: Hadoop Common Issue Type: Bu