[hobbit] I'm getting the error "could not lock RRD"

[Robin Wood]

Well, something fixed it and I'd rather not break again it while
fiddling around to try to find out what it was!

The nfs config is straight out of the box, nothing special and
everything else runs ok. Maybe it was something corrupt in the data
files and clearing them after moving the directory cleared the
problem.

Robin

On 6/24/07, Dean Casey <dcasey at pathfire.com> wrote:
> I am running my rrd files on an NFS share, having no problems. Have also
> ran several hobbit servers with the application binaries housed on NFS
> mounts; the app binaries & rrd files on NFS mounts; and just the rrd
> files on NFS mounts. Have been running Hobbit server with both the app
> binaries and rrd files on an NFS mount, for more than a year now. Unless
> there are some NFS performance issues on your network, housing those
> files on an NFS mount isn't the problem.
>
> Dean Casey
>
>
> -----Original Message-----
> From: Robin Wood [mailto:dninja at gmail.com]
> Sent: Sunday, June 24, 2007 3:59 PM
> To: hobbit at hswn.dk
> Subject: Re: [hobbit] I'm getting the error "could not lock RRD"
>
> Got it working! I moved the data directory to the local disk and
> deleted the contents. After a while it all started working.
>
> rrd obviously doesn't like nfs shares.
>
> Robin
>
> On 6/24/07, Robin Wood <dninja at gmail.com> wrote:
> > Well, moving the log directory to the local disk stopped the error
> > messages but I'm still getting empty graphs.
> >
> > Dean, the requirements show PCRE, RRDtool, libpng, OpenSSL and
> > OpenLDAP libraries. I've got all of those:
> >
> > (from ./configure)
> >
> > Checking for RRDtool ...
> > test-rrd.c: In function 'main':
> > test-rrd.c:30: error: too few arguments to function 'rrd_graph'
> > make: *** [test-compile] Error 1
> > Not RRDtool 1.0.x, checking for 1.2.x
> > Found RRDtool include files in /usr/include
> > Found RRDtool libraries in /usr/lib
> > Linking RRD with PNG library: -L/usr/lib -lpng
> >
> >
> > Checking for PCRE ...
> > Found PCRE include files in /usr/include
> > Found PCRE libraries in /usr/lib
> >
> >
> > Checking for OpenSSL ...
> > Found OpenSSL include files in /usr/include
> > Found OpenSSL libraries in /usr/lib
> >
> > Any more ideas?
> >
> > Robin
> >
> > On 6/24/07, Robin Wood <dninja at gmail.com> wrote:
> > > Hi
> > > What I should have added is that I am seeing graphs but with no
> graph
> > > lines and no numeric data in them. The filesystem graph for example,
> > > shows all my mount points but then where the numbers are supposed to
> > > be it is showing nan.
> > >
> > > I'm trying moving the data/rrd directory to a local disk now, I'll
> let
> > > you know how it gets on.
> > >
> > > Robin
> > >
> > > On 6/24/07, Dean Casey <dcasey at pathfire.com> wrote:
> > > > Rrdtool by itself is not sufficient for all the libraries hobbit
> needs.
> > > > Please check the list of installed libraries against the hobbit
> > > > pre-requisites & install any missing libraries. Then, when you
> > > > re-compile hobbit afterward, run "make clean" before running
> "make" and
> > > > "make install". The "make clean" command is important.
> > > >
> > > > Dean Casey
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: Robin Wood [mailto:dninja at gmail.com]
> > > > Sent: Saturday, June 23, 2007 12:53 PM
> > > > To: hobbit at hswn.dk
> > > > Subject: Re: [hobbit] I'm getting the error "could not lock RRD"
> > > >
> > > > I built hobbit from source and initially it complained that the
> > > > libraries weren't there so I installed the rrdtool package and
> tried
> > > > again. This time it built so I assume that it had all it needed.
> > > >
> > > > If you can let me know which files need what permissions I'll
> check
> > > > when I check the nfs share suggestion later.
> > > >
> > > > Robin
> > > >
> > > > On 6/23/07, Dean Casey <dcasey at pathfire.com> wrote:
> > > > > I've seen this rrd error in the past when rrd libraries,
> binaries, or
> > > > > data files had incorrect permissions or were missing
> (unavailable).
> > > > >
> > > > > Dean Casey
> > > > >
> > > > >
> > > > >
> > > > > -----Original Message-----
> > > > > From: Robin Wood [mailto:dninja at gmail.com]
> > > > > Sent: Friday, June 22, 2007 4:59 PM
> > > > > To: hobbit at hswn.dk
> > > > > Subject: Re: [hobbit] I'm getting the error "could not lock RRD"
> > > > >
> > > > > Hi
> > > > > The directory is a nfs share. I'll try moving the data directory
> to a
> > > > > local disk and see if that fixes it.
> > > > >
> > > > > Robin
> > > > >
> > > > > On 6/22/07, Henrik Stoerner <henrik at hswn.dk> wrote:
> > > > > > On Fri, Jun 22, 2007 at 07:27:27PM +0100, Robin Wood wrote:
> > > > > > > 2007-06-22 19:24:55 RRD error updating
> > > > > > > /var/sites/hobbit/non-secure//data/rrd/xxx/procs.rrd from
> > > > > 192.168.0.2:
> > > > > > > could not lock RRD
> > > > > >
> > > > > > It's an error from the rrdtool library. I honestly have no
> idea what
> > > > > > could be causing this.
> > > > > >
> > > > > > Is the /var/sites/hobbit/non-secure//data/rrd an NFS
> filesystem?
> > > > > > Perhaps there's some issue with locking on networked
> filsystems.
> > > > > >
> > > > > >
> > > > > > Regards,
> > > > > > Henrik
> > > > > >
> > > > > >
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> > > > > >
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