[collectd] "uc_update: Value too old" error

[Giovanni Torres]

Looks like setting WriteThreads to 1 stops these messages; see
https://github.com/collectd/collectd/issues/987

On Thu, Oct 15, 2015 at 5:31 PM Andreas Schuldei <andreas at schuldei.org>
wrote:

> i read the FAQ "I get frequent errors that a “value is too old”. What's
> this about?" section.
>
> my collectd runs on my server, no network transmission of data, just local
> operation. only one collecd is running:
>
> root     18951  0.0  0.2   1752  1072 ?        Ss   22:50   0:00
> /usr/sbin/collectdmon -P /var/run/collectd.pid -- -C
> /etc/collectd/collectd.conf
> root     18952  1.5  5.5 130352 28732 ?        Sl   22:50   0:08 collectd
> -C /etc/collectd/collectd.conf -f
>
> i get lots of those:
>
> Oct 15 23:01:49 david collectd[18952]: uc_update: Value too old: name =
> kessel0001.fritz.box/biosmart/gauge-Füllraumtür; value time =
> 1444942909.000; last cache update = 1444942909.000;
>
> where the "last cache update" increases every 10 sec by 10sec. :-)
>
> i restarted collectd to no avail. since this is an embedded system with
> limited disk space i disabled the syslog plugin in collectd.conf, to
> prevent syslog from exploding - not the right fix but a bad (temporary)
> one.
>
> collectd seems to work fine, the rrd files get updated and all.
>
> how can i fix this properly?
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>
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