-Re: start hadoop slave over WAN
Chen He 2012-03-30, 22:38
login your remote datanode and start the datanode manually to see what
start HDFS based on the WAN is not as easy as on a cluster. There are many
issues. datanode log should be the best way to shoot troubles.
On Fri, Mar 30, 2012 at 12:52 PM, Michael Segel
> Probably a timeout.
> Really, not a good idea to do this in the first place...
> Sent from my iPhone
> On Mar 30, 2012, at 12:35 PM, "Ben Cuthbert" <[EMAIL PROTECTED]>
> > Strange thing is the datanode in the remote location has a log zero
> bytes. So nothing there.
> > Its strange it is like the master does and ssh, login, and then attempts
> to start it but nothing. Maybe there is a timeout?
> > On 30 Mar 2012, at 18:22, kasi subrahmanyam wrote:
> >> Try checking the logs in the logs folder for the datanode.It might give
> >> some lead.
> >> Maybe there is a mismatch between the namespace iDs in the system and
> >> itself while starting the datanode.
> >> On Fri, Mar 30, 2012 at 10:32 PM, Ben Cuthbert <[EMAIL PROTECTED]
> >>> All
> >>> We have a master in one region and we are trying to start a slave
> >>> in another region. When executing the scripts it looks to login to the
> >>> remote host, but
> >>> never starts the datanode. When executing hbase tho it does work. Is
> >>> a timeout or something with hadoop?