[collectd] Completely wrong entry in rrddb

Manuel CISSE manuel_cisse at yahoo.fr
Thu Mar 25 09:57:21 CET 2010

Hash: SHA1


Some weeks ago I posted a mail on this issue on this mailing list. I was
suggested to set a max value in the rrddb. This is only a workaround but
it works at least for me.

- -- 

On 24/03/2010 19:26, Peter Warasin wrote:
> Hi guys
> I'm trying to track down a nasty bug.. Probably you guys have some ideas
> what this could be or more better .. already the solution? :)
> From time to time i find completely wrong values within the rrd
> databases generated by the tail plugin.
> Something like: 8.5899345900e+08. Seems to be an overflow.
> In reality there should be not more than 2e-1-4e-1
> I'm pretty sure that this happens when collectd will be restarted, (Or
> stopped?), since it happens quite regularly midnight, when a cronjob
> runs which restarts collectd.
> I was able to reproduce it also by manually restart it, therefore i
> think it does not happen because of rotated log files.
> This however is quite random, so definitively not so easy to find.
> I *think* it has something to to when the rrd files will be closed ..
> Last flush?  Probably..
> For now i test with 4.9.1 but it happened also with older versions.
> Do you have any suggestions?
> kind regards,
> peter

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