Hello,
Please provide the version number of the collectd you are using.
Sometimes, it helps.
For what I can say now, I think that you should not use both rrdcached
and rrdtool.
If you use rrdcached, do not forget to add "CreateFiles true".
Also check that collectd (and rrdcached if you are using it) has the
permissions to go to /var/lib/rrdcached/db/collectd and then to write
files there.
More info here :
llectd.org/documentation/manpages/collectd.conf.5.shtml#plugin_rrdcached
https://collectd.org/wiki/index.php/Plugin:RRDCacheD (this one should be
updated)
Regards,
Yves
Le 2013-07-17 23:55, Zhou, Yuantai a écrit :
Hi All,
We want to use the RRDCached plugin in our collectd environment but we
are seeing a lot of errors in syslog from collectd servers (and
collectd clients) like the following:
rrdcached plugin: rrdc_update
(/var/lib/rrdcached/db/collectd/xxxxxxxxxxx/df/df-root.rrd,
[1374097922:0.000000:0.010000:0.050000], 1) failed with status -1.
The error appears to happen for every rrd file
The RRDCached plugin configurations is as follows:
<Plugin rrdcached>
DaemonAddress "unix:/var/run/rrdcached.sock"
DataDir "/var/lib/rrdcached/db/collectd"
CollectStatistics true
</Plugin>
<Plugin rrdtool>
DataDir "/var/lib/rrdcached/db/collectd"
CacheTimeout 60
CacheFlush 3600
WritesPerSecond 1800
RandomTimeout 30
</Plugin>
We do see that the RRD files (at least some or most of them) are being
updated (with new timestamps).
Any way to resolve the error?
Thanks.
Yuantai
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