Hmmm...
Actually there are some debug messages in the log file now:
When I just ran another test I got:
050301 16:46:39 24895 do_Select Lookup delay xrootd107.gridpp.rl.ac.uk 5
050301 16:46:39 24895 Receive From csfnfs49.rl.ac.uk:1094: 7@0 have r
/store/test/csfnfs49.01.root
050301 16:46:44 24895 Receive From xrootd107.gridpp.rl.ac.uk: 35 select
r /store/test/csfnfs49.01.root
050301 16:46:44 24895 do_Select Redirect xrootd107.gridpp.rl.ac.uk ->
csfnfs49.rl.ac.uk:1094 for /store/test/csfnfs49.01.root
Is it possible that because there was another load balancer in the
set-up it was asking that to find the files for it? That other machine
has now gone down to be reinstalled with SL3 and now we're getting more
logging info.
Weird.
Chris.
> -----Original Message-----
> From: [log in to unmask]
> [mailto:[log in to unmask]] On Behalf Of
> Brew, CAJ (Chris)
> Sent: 01 March 2005 16:13
> To: Andrew Hanushevsky; Olaiya, EO (Emmanuel)
> Cc: [log in to unmask]
> Subject: RE: olbd tracing
>
> cc'd to Manny in case he doesn't catch it on the list.
>
> The machine I'm trying to turn the logging on on is
> xrootd107.gridpp.rl.ac.uk our new master load balancer. We don't have
> root access on the box but can restart the deamons and modify
> the config
> file.
>
> I started the deamon with the -d option by running StopOLB
> and StartOLB
> -d rather than using the sudo /sbin/service olbd start|stop
> we normally
> do.
>
> We haven't had any problems since I reduced the number of
> xrootd servers
> in the cluster but I've now only got about 7TB free on the
> servers left
> in the cluster so will run out of room in about a week.
>
> Yours,
> Chris.
>
> > -----Original Message-----
> > From: Andrew Hanushevsky [mailto:[log in to unmask]]
> > Sent: 01 March 2005 15:53
> > To: Brew, CAJ (Chris)
> > Cc: Andrew Hanushevsky; [log in to unmask]
> > Subject: RE: olbd tracing
> >
> > Hi Chris,
> >
> > OK, something seems to be amiss with the overall
> configuration if even
> > this doesn't work. Let me get together with Manny and take a
> > look at what
> > is actually running and how it is put together. Manny when?
> >
> > Andy
> >
> > On Tue, 1 Mar 2005, Brew, CAJ (Chris) wrote:
> >
> > > Hi,
> > >
> > > I've got:
> > >
> > > olb.trace debug
> > > odc.trace debug
> > > ofs.trace debug
> > >
> > > in my xrootd.cf file and started the olbd with -d on the LB server
> > > [xrootd107] /opt/xrootd/etc > ps fwwwU bbdatsrv
> > > PID TTY STAT TIME COMMAND
> > > 18801 ? S 0:00 sshd: bbdatsrv@pts/0
> > > 18803 pts/0 S 0:00 -bash
> > > 25484 pts/0 R 0:00 \_ ps fwwwU bbdatsrv
> > > 24895 pts/0 S 0:00 /opt/xrootd/bin/olbd -d -m -l
> > > /opt/xrootd/logs/olbdlog -c /opt/xrootd//etc/xrootd.cf
> > > 23940 pts/0 S 0:00 /opt/xrootd/bin/xrootd -r -l
> > > /opt/xrootd/logs/xrdlog -c /opt/xrootd/etc/xrootd.cf
> > > 23975 pts/0 S 0:00 /opt/xrootd/bin/xrootd -r -l
> > > /opt/xrootd/logs/xrdlog -c /opt/xrootd/etc/xrootd.cf
> > >
> > > but am still not getting any debug info on how it's
> > locating the files:
> > >
> > > the old.trace debug on the Data Servers does get me:
> > >
> > > 050301 11:45:08 616 Receive From xrootd108.gridpp.rl.ac.uk:
> > 7@0 state
> > > /store...
> > >
> > > when looking for a file.
> > >
> > > Anyone know what else I need on the LB server?
> > >
> > > Thanks,
> > > Chris.
> > >
> > > > -----Original Message-----
> > > > From: Andrew Hanushevsky [mailto:[log in to unmask]]
> > > > Sent: 23 February 2005 20:59
> > > > To: Brew, CAJ (Chris)
> > > > Cc: [log in to unmask]
> > > > Subject: Re: olbd tracing
> > > >
> > > > Hi Chris,
> > > >
> > > > That's starting the olbd with the -d option (for debugging).
> > > >
> > > > ----- Original Message -----
> > > > From: "Brew, CAJ (Chris)" <[log in to unmask]>
> > > > To: "Andrew Hanushevsky" <[log in to unmask]>
> > > > Cc: <[log in to unmask]>
> > > > Sent: Wednesday, February 23, 2005 11:01 AM
> > > > Subject: RE: olbd tracing
> > > >
> > > >
> > > > > Hi Andy,
> > > > >
> > > > > I don't think the odc.trace redirect is the one I'm looking
> > > > for. What's
> > > > > the directive that puts the "have ?" and "have" replies
> > > > into the olbd
> > > > > log.
> > > > >
> > > > > Once I narrow it down to the manager not asking the server
> > > > or the server
> > > > > not replying correctly I can turn debug on on the relavant
> > > > machine. I'm
> > > > > reluctant to turn it on on all machines because it's a fair
> > > > time before
> > > > > the problem manifests itself.
> > > > >
> > > > > Thanks,
> > > > > Chris.
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: Andrew Hanushevsky [mailto:[log in to unmask]]
> > > > > > Sent: 22 February 2005 21:26
> > > > > > To: Brew, CAJ (Chris); [log in to unmask]
> > > > > > Subject: Re: olbd tracing
> > > > > >
> > > > > > Hi Chris,
> > > > > >
> > > > > > Try:
> > > > > >
> > > > > > odc.trace redirect
> > > > > >
> > > > > > for the olb try using the '-d' option; though you may get
> > > > > > more information
> > > > > > than really needed.
> > > > > >
> > > > > > Andy
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "Brew, CAJ (Chris)" <[log in to unmask]>
> > > > > > To: <[log in to unmask]>
> > > > > > Sent: Tuesday, February 22, 2005 6:53 AM
> > > > > > Subject: olbd tracing
> > > > > >
> > > > > >
> > > > > > > Hi,
> > > > > > >
> > > > > > > What's the trace argument to add to the xrootd.cf file
> > > > to get it to
> > > > > > > output the queries to locate files to the logs.
> > > > > > >
> > > > > > > We're still having problems at RAL with
> > files/servers not being
> > > > > > > available via the load balancers when they are if you
> > > > contact them
> > > > > > > directly.
> > > > > > >
> > > > > > > Yours,
> > > > > > > Chris.
> > > > > > >
> > > > > > > --
> > > > > > > Chris Brew ([log in to unmask]) +44 1235 446326
> > > > > > > Particle Physics Department
> > > > > > > Rutherford Appleton Laboratory
> > > > > > > Chilton, Didcot. Oxfordshire.
> > > > > > > OX11 0QX. United Kingdom.
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > >
> > > >
> > >
> > >
> >
>
>
|