Dude.. passwordless ssh between my namenode and datanode is working all
fine...!!!
My question is ---
*"Are you talking about passwordless ssh between datanodes" *
**
or
*"Are you talking about password less ssh between datanodes and namenode" *
**
Because if you are talking about 2nd case.. than that thing is working
fine...because I already mentioned it that all my datanodes in hadoop are
working fine..!!! I can see all those datanodes using "hadoop fsck /" as
well as in hdfs web UI also..
On Tue, Jun 7, 2011 at 11:35 PM, jagaran das <jagaran_...@yahoo.co.in>wrote:
> Yes Correct
> Password less SSH between your name node and some of your datanode is not
> working
>
>
>
>
> ________________________________
> From: praveenesh kumar <praveen...@gmail.com>
> To: common-user@hadoop.apache.org
> Sent: Tue, 7 June, 2011 10:56:08 AM
> Subject: Re: NameNode is starting with exceptions whenever its trying to
> start
> datanodes
>
> >>1. Some of your data node is getting connected, that means password less
> SSH is
> >>not working within nodes.
>
> So you mean that passwordless SSH should be there among datanodes also.....
> In hadoop we used to do password less SSH from namenode to data nodes....
> Do we have to do passwordless ssh among datanodes also ???
>
> On Tue, Jun 7, 2011 at 11:15 PM, jagaran das <jagaran_...@yahoo.co.in
> >wrote:
>
> > Check two things:
> >
> > 1. Some of your data node is getting connected, that means password less
> > SSH is
> > not working within nodes.
> > 2. Then Clear the Dir where you data is persisted in data nodes and
> format
> > the
> > namenode.
> >
> > It should definitely work then
> >
> > Cheers,
> > Jagaran
> >
> >
> >
> > ________________________________
> > From: praveenesh kumar <praveen...@gmail.com>
> > To: common-user@hadoop.apache.org
> > Sent: Tue, 7 June, 2011 3:14:01 AM
> > Subject: Re: NameNode is starting with exceptions whenever its trying to
> > start
> > datanodes
> >
> > But I dnt have any data on my HDFS.. I was having some date before.. but
> > now
> > I deleted all the files from HDFS..
> > I dnt know why datanodes are taking time to start.. I guess because of
> this
> > exception its taking more time to start.
> >
> > On Tue, Jun 7, 2011 at 3:34 PM, Steve Loughran <ste...@apache.org>
> wrote:
> >
> > > On 06/07/2011 10:50 AM, praveenesh kumar wrote:
> > >
> > > The logs say
> > >
> > >
> > > The ratio of reported blocks 0.9091 has not reached the threshold
> > 0.9990.
> > >> Safe mode will be turned off automatically.
> > >>
> > >
> > >
> > > not enough datanodes reported in, or they are missing data
> > >
> >
>
