[collectd] Strange behaviour of collectd with rrdcached

[Sergey]

On Friday 12 December 2014, Marc wrote:

> rrdcached plugin: rrdc_update (/var/lib/collectd/rrd/test_collectd/cpu-0/cpu-interrupt.rrd, [1418377171:3440], 1) failed with status -1.
> Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.

I have a same problem.

Apr 22 13:05:41 collectd[14593]: rrdcached plugin: rrdc_update (/var/lib/collectd/rrd/hostname/apcups/temperature.rrd, [1429693527:32.800000], 1) failed with status -1.

I used -j option of rrdcached and looked to journal:

update /var/lib/collectd/rrd/hostname/apcups/temperature.rrd 1429693516:32.800000
update /var/lib/collectd/rrd/hostname/apcups/temperature.rrd 1429693536:32.800000
update /var/lib/collectd/rrd/hostname/apcups/temperature.rrd 1429693527:32.800000 <--
update /var/lib/collectd/rrd/hostname/apcups/temperature.rrd 1429693546:32.800000
update /var/lib/collectd/rrd/hostname/apcups/temperature.rrd 1429693556:32.800000

Attempt to write incorrect entry was really.
This happens quite often for different hosts:

# grep "failed with status \-1" messages|wc -l
123578

Could this be a problem of rrdcached ?

-- 
Regards, Sergey