#1282 accepted defect

update_rate needs documentation

Reported by: jmbreuer Owned by: ssm
Priority: normal Milestone:
Component: documentation Version: 2.0.5
Severity: normal Keywords:
Cc:

Description

The update_rate parameter (new from 2.0) is not documented in the munin.conf man page, in the default/example configuration file, nor on http://munin.readthedocs.org/en/latest/reference/munin.conf.html

I found this to be quite a pitfall, since this parameter cannot easily be changed after installing munin, without losing all data already recorded.

A workaround is available:

To change the update_rate after the initial install, I started out with this guide: http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&eotf=1&u=http%3A%2F%2Fpellelatarte.fr%2F2012%2F11%2Fmunin-configurer-le-temps-de-rafraichissement%2F

At the "Delete (.rrd) files in the corresponding domain names" step, I looked for an alternative and found this: http://www.elturista.net/2012/01/02/changing-step-time-of-a-rrd-file/

With a bit of shell trickery, this helped to convert all 670 .rrd files of my single-machine install to the new update_rate. Munin now works for me with a 60-second update rate instead of the default 5 minutes, and memory has been preserved.

Change History (2)

comment:1 Changed at 2012-12-08T18:55:28+01:00 by ssm

  • Owner changed from nobody to ssm
  • Status changed from new to accepted
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