[collectd] how to re-create a single rrd file

Andreas Schuldei andreas at schuldei.org
Thu Nov 24 00:36:10 CET 2016

ok, i was wrong - the other rrd files were not updated, the filesystem had
gone to read-only in the meantime, and there were shared libs missing - the
file system was worse off then i thought.

i fixed it all and lost one rrd file in the process.

and hint on extending those RRATimespans would still be very much

On Wed, Nov 23, 2016 at 5:56 PM Andreas Schuldei <andreas at schuldei.org>

> So today, i had some filesystem trouble and lost one of my rrd files. i
> deleted it and hoped, it would be re-created when collected noticed its
> absence.
> but woe - it did not come back yet.
> i restarted collectd, and the other rrd files are updated. can i do that
> on the commandline, manually? these are the rrdtool settings:
> <Plugin rrdtool>
>         DataDir "/var/lib/collectd/rrd"
>         CacheTimeout 120
>         CacheFlush 900
>         WritesPerSecond 30
>         RandomTimeout 20
>   RRATimespan 3600
>   RRATimespan 86400
>   RRATimespan 604800
>   RRATimespan 2678400
>   RRATimespan 31622400
>   RRATimespan 315576000
> </Plugin>
> btw, can i make those RRATimespans longer? (how? i guess i would need to
> dump and re-create the rrd files? any howto anywhere?)
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