Re: [Tracker] tracker on a desktop cluster?

["Chris Fanning" <christopher fanning gmail com>]

On Tue, Nov 11, 2008 at 12:51 PM, Martyn Russell <martyn imendio com> wrote:
> Chris Fanning wrote:
> > On Tue, Nov 11, 2008 at 12:30 PM, Martyn Russell <martyn imendio com> wrote:
> > > Chris Fanning wrote:
> > > > On Tue, Nov 11, 2008 at 10:24 AM, Martyn Russell <martyn imendio com> wrote:
> > > > > Chris Fanning wrote:
> > > > > > Hi,
> > > > > Hi :)
> > > > Ok, I tried it and it works. Users are going to love this!
> > > >
> > > > I think it would be nice to be able to pass a different
> > > > /path/to/my/index_server/tracker.cfg to trackerd on the index_server,
> > > > or equally be able to do the same when starting trackerd on the node,
> > > > but I hacen't seen an option for this in the manpages.
> > > I suppose you could ln -s the file for now. We could add an option to
> > > load the config from somewhere else actually. Should be really quick to do.
> > >
> > > > One small problem.
> > > > I start trackerd on the index_server. And when I start
> > > > "/usr/bin/trackerd --no-indexing" on the node it reports "WARNING **:
> > > > Tracker daemon is already running - exiting"
> >
> > > Just out of interest, why run another instance of trackerd?
> > One is running on the index_server:
> > su - uid
> > dbus-launch trackerd
>
> The daemon should start itself, is there actually another process
> already started at this point?
after entering via 'su - username', the only processes running under
'username' are
1. su
2. bash
trackerd does not start dbus by itself, that's why I use "dbus-launch trackerd"

> > And another is running on the desktop_server (invoked when user starts
> > tracker-search-tool).
> >
> > > Yea, this tries to get the DBus name when it starts and it if is already
> > > occupied then it exits assuming it is already running. You can get
> > > around this by using different DBus session buses.
> > ok. escuse my ignorance but, as I'm running these instances on two
> > different boxes (trackerd and dbus), aren't I already using different
> > DBus session buses?
>
> Ah, that's TRUE. Note. If you call the Tracker DBus API, it should start
> it for you. I would advise not starting it yourself,
Maybe trackerd is finding a PID file or lockfile someplace? If both
trackerd on index_server and desktop_server are reading the same file
that might explain it.

> and just using the
> config option to disable indexing instead.

The reason I asked about passing a different config to trackerd was
because of this. Both the desktop_server and the index_server share
the same /home. That means trackerd reads the same config. At the
moment (to get arounf this) if wrapped trackerd on the node with
/usr/bin/trackerd
#!/bin/bash
/usr/bin/trackerd.orig --no-indexing

Cheers,
Chris.
> --
> Regards,
> Martyn