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Pig, mail # dev - Want to contribute


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Vineet Nair 2013-04-30, 23:16
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Cheolsoo Park 2013-05-01, 04:00
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Naidu MS 2013-05-01, 04:10
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Cheolsoo Park 2013-05-01, 04:17
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Naidu MS 2013-05-01, 07:25
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Daniel Dai 2013-05-01, 22:15
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Re: Want to contribute
Naidu MS 2013-05-02, 03:16
Thanks Daniel.
I am new to this group.

Regards,
Naidu
On Thu, May 2, 2013 at 3:45 AM, Daniel Dai <[EMAIL PROTECTED]> wrote:

> Hi, Naidu,
> Those are Hadoop question and you should send to [EMAIL PROTECTED]. A
> quick answer to double "hadoop namenode -format" question is, once you do
> that, you lose the metadata, you would have trouble getting hdfs files
> back.
>
> Thanks,
> Daniel
>
>
> On Wed, May 1, 2013 at 12:25 AM, Naidu MS
> <[EMAIL PROTECTED]>wrote:
>
> > Hi i have two questions regarding hdfs and jps utility
> >
> > I am new to Hadoop and started leraning hadoop from the past week
> >
> > 1.when ever i start start-all.sh and jps in console it showing the
> > processes started
> >
> > *naidu@naidu:~/work/hadoop-1.0.4/bin$ jps*
> > *22283 NameNode*
> > *23516 TaskTracker*
> > *26711 Jps*
> > *22541 DataNode*
> > *23255 JobTracker*
> > *22813 SecondaryNameNode*
> > *Could not synchronize with target*
> >
> > But along with the list of process stared it always showing *" Could not
> > synchronize with target" *in the jps output. What is meant by "Could not
> > synchronize with target"?  Can some one explain why this is happening?
> >
> >
> > 2.Is it possible to format namenode multiple  times? When i enter the
> >  namenode -format command, it not formatting the name node and showing
> the
> > following ouput.
> >
> > *naidu@naidu:~/work/hadoop-1.0.4/bin$ hadoop namenode -format*
> > *Warning: $HADOOP_HOME is deprecated.*
> > *
> > *
> > *13/05/01 12:08:04 INFO namenode.NameNode: STARTUP_MSG: *
> > */*************************************************************
> > *STARTUP_MSG: Starting NameNode*
> > *STARTUP_MSG:   host = naidu/127.0.0.1*
> > *STARTUP_MSG:   args = [-format]*
> > *STARTUP_MSG:   version = 1.0.4*
> > *STARTUP_MSG:   build > > https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.0 -r
> > 1393290; compiled by 'hortonfo' on Wed Oct  3 05:13:58 UTC 2012*
> > *************************************************************/*
> > *Re-format filesystem in /home/naidu/dfs/namenode ? (Y or N) y*
> > *Format aborted in /home/naidu/dfs/namenode*
> > *13/05/01 12:08:05 INFO namenode.NameNode: SHUTDOWN_MSG: *
> > */*************************************************************
> > *SHUTDOWN_MSG: Shutting down NameNode at naidu/127.0.0.1*
> > *
> > *
> > *************************************************************/*
> >
> > Can someone help me in understanding this? Why is it not possible to
> format
> > name node multiple times?
> >
> >
> > On Wed, May 1, 2013 at 9:47 AM, Cheolsoo Park <[EMAIL PROTECTED]>
> > wrote:
> >
> > > Please see the following wiki page:
> > > https://cwiki.apache.org/confluence/display/PIG/HowToContribute
> > >
> > > Thanks,
> > > Cheolsoo
> > >
> > >
> > > On Tue, Apr 30, 2013 at 9:10 PM, Naidu MS
> > > <[EMAIL PROTECTED]>wrote:
> > >
> > > > Hi How to get the source of pig?
> > > > I am interested in going to source code so that i can learn how the
> > > > framework is written.
> > > > I can help in fixing some minor bugs/jira issues.
> > > > Can some one help me how to get the source code ?
> > > >
> > > >
> > > >
> > > > Regards,
> > > > Naidu
> > > >
> > > >
> > > > On Wed, May 1, 2013 at 9:30 AM, Cheolsoo Park <[EMAIL PROTECTED]>
> > > > wrote:
> > > >
> > > > > Welcome to Pig. There are hundreds of open jiras:
> > > > >
> > > > >
> > > > >
> > > >
> > >
> >
> https://issues.apache.org/jira/issues/?jql=project%20%3D%20PIG%20AND%20status%20%3D%20Open%20ORDER%20BY%20created%20DESC%2C%20priority%20DESC
> > > > >
> > > > > Please feel free to submit patches.
> > > > >
> > > > > Thanks,
> > > > > Cheolsoo
> > > > >
> > > > >
> > > > >
> > > > > On Tue, Apr 30, 2013 at 4:16 PM, Vineet Nair <[EMAIL PROTECTED]>
> > > > wrote:
> > > > >
> > > > > > Hello all ,
> > > > > >
> > > > > > I was just going through the source code of Pig and I would very
> > much
> > > > > like
> > > > > > to contribute to it.
> > > > > > I was just wondering if there are any small Jira requests that i