[rrd-users] rrdtool update error

Stephen S. Disbrow steve at disbrows.us
Wed Dec 2 17:28:28 CET 2009

Here's all the info, please let me know if any further information is 
required. Also I don't think I'm setting any rrdtool specific variables in 
the environment.

12/02/2009 10:19:13 AM
The rrdcached process is run as the metis user.
all the rrdtooll commands are run as the metis user.
The rrdcached startup command line
/usr/pkg/bin/rrdcached -l unix:/tmp/metis.rrd.sock -w 60 -p 
/tmp/metis.rrd.pid  -t 5  -j ${BASEPATH}/journal
These files are in /tmp
-rw-r----- 1 metis metis 6 Dec  1 12:26 metis.rrd.pid
srwxrwx--- 1 metis metis 0 Dec  1 12:26 metis.rrd.sock
The $BASEPATH path is on an NFS file system.
The update command is as follows;
/usr/pkg/bin/         rrdtool update  --daemon unix:/tmp/metis.rrd.sock
${BASEPATH}/volumes.rrd N:$accesses:$reads:$writes    &
The error is;
ERROR: rrdcached: Permission denied
The rrd file in question perms are as follows;
-rw-rw---- 1 metis metis 438480 Dec  1 13:25 volumes.rrd

Thanks in advance,
Stephen Disbrow

----- Original Message ----- 
From: "Sebastian Harl" <sh at tokkee.org>
To: "Stephen S. Disbrow" <steve at disbrows.us>
Cc: <rrd-users at lists.oetiker.ch>
Sent: Wednesday, December 02, 2009 2:59 AM
Subject: Re: [rrd-users] rrdtool update error
Hi Steve,

On Tue, Dec 01, 2009 at 08:01:59PM -0600, Stephen S. Disbrow wrote:
>     I'm getting the following error from rrdtool update when using the
> rrdcached process;
> ERROR: rrdcached: Permission denied
> I don't know what permissions it's talking about. The rrdfiles have
> the proper permissions. I'm not using the -P option for rrdcached
> because I thought without it that  all permissions will be opened. Any
> ideas as to what to look at?

I suppose, you are connecting to rrdcached through a UNIX socket (see
the -l command line option). In that case, the user doing rrdupdate
needs (filesystem) write permissions for the appropriate socket file.

If that is not the case, please provide more information about your
setup. What rrdcached command line options do you use? Does rrdcached
run as root? Which user is doing the rrdupdate? What is the command line
used for that (please note that some environment variables might
overwrite some of those options -- see the appropriate manpages for
details)? ...


Sebastian "tokkee" Harl +++ GnuPG-ID: 0x8501C7FC +++ http://tokkee.org/

Those who would give up Essential Liberty to purchase a little Temporary
Safety, deserve neither Liberty nor Safety.         -- Benjamin Franklin


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