On Fri, Jan 29, 2010 at 06:02:52AM -0800, SaschaTen wrote: > > Hello, > I try to use rrdcached-daemon in version 1.4.2, the caching and updateing of > the rrd-files run well. The cached-deamon was started with the command: > "rrdcached -l 192.168.30.13.1:1234 -b /opt/rrd -w 600 -f 3600 -j > /opt/rrd/cache -F -t 10".
Hi, I think you are running into a surprise introduced in r1928: 1928> However, when talking to a remote daemon, absolute path names 1928> are not allowed, since path name translation is done by the 1928> server (relative to the base directory). Try using a Unix socket.. It should work fine. > After this I want to use the cached feature in combination with drawing a > graph. If I understand the methode right, I can send RRD an flag, that it > have to import the data for the rrdfile before drawing the graph, this is > possible in the CLI with the parameter "--daemon (unixsocket or ip:port)", > but the Perl-packet RRDs.pm seem to have no possibility for this parameter > in the function graph. > > Now I tried to test the CLI for the rrdtool, the "normal" command works well > "rrdtool graph /srv/www/htdocs/pic.png -a PNG --start 1263375151 --end > 1263378751 DEF:inoctets=/opt/rrd/some.rrd:input:AVERAGE > CDEF:inbits=inoctets,8,*,1.024,/,1.024,/ LINE:inbits#FF0000" the graph was > correctly painted. > > When trying to us the flush function for the data: "rrdtool graph > /srv/www/htdocs/pic.png -a PNG --start 1263375151 --end 1263378751 > DEF:inoctets=/opt/rrd/some.rrd:input:AVERAGE > CDEF:inbits=inoctets,8,*,1.024,/,1.024,/ LINE:inbits#FF0000 --daemon > 192.168.30.13:1234" the result is "ERROR: rrdc_flush (/opt/rrd/some.rrd) > failed with status -1." it failed. This error code doesn't really help me. I think we should do a better job of passing the failure messages from the daemon back to RRD's error string. I'll look into that. > The last thing I tried was to run a flush manuel, but the same problem > occurred : > rrdtest:~ # telnet 192.168.30.13 1234 > Trying 192.168.30.13... > Connected to 192.168.30.13. > Escape character is '^]'. > STATS > 9 Statistics follow > QueueLength: 0 > UpdatesReceived: 326937 > FlushesReceived: 10 > UpdatesWritten: 166110 > DataSetsWritten: 273969 > TreeNodesNumber: 0 Note that your tree is empty at this time.. TreeNodesNumber = 0 ... > TreeDepth: 0 > JournalBytes: 38482393 > JournalRotate: 1221 > FLUSHALL > 0 Started flush. > FLUSH some.rrd > -1 No such file: /opt/rrd/some.rrd. ... this explains why the FLUSH failed. Although it exists on the file system, it is not presently cached in rrdcached. If you try again after a successful UPDATE, it should work just fine. -- kevin brintnall =~ /kbr...@rufus.net/ > QUITE > rrdtest:~ # ls -la /opt/rrd > total 268 > drwxr-xr-x 3 root root 4096 Jan 13 12:49 . > drwx------ 10 root root 4096 Jan 13 12:48 .. > drwxr-xr-x 2 root root 4096 Jan 13 12:48 cache > -rw-r--r-- 1 root root 257896 Jan 13 12:49 some.rrd > > Have I made an error in my installation or is this behavioure normal? On the > Webside I can't find a hint how to solve this problem. > Is the "--daemon"-function implementet in the RRDs.pm? > > Regards > Sascha > -- > View this message in context: > http://n2.nabble.com/Problems-with-rrdcached-and-RRDs-graph-tp4480089p4480089.html > Sent from the RRDtool Developers Mailinglist mailing list archive at > Nabble.com. > > _______________________________________________ > rrd-developers mailing list > rrd-developers@lists.oetiker.ch > https://lists.oetiker.ch/cgi-bin/listinfo/rrd-developers _______________________________________________ rrd-developers mailing list rrd-developers@lists.oetiker.ch https://lists.oetiker.ch/cgi-bin/listinfo/rrd-developers