[collectd] RRD files are not updated

Domagoj Mikac domagoj.mikac at metronet.hr
Fri Aug 21 14:19:26 CEST 2009


Hi Mariusz,

Hard disks are not overloaded at all. I expected even higher i/o load. 
Here is the iostat, and vmstat result for all hard disks plugged in
server. 
My interpretation of results shown bellow is that the hard disks are not
overloaded at all. 

Am I wrong ????

iostat -d -x results:
Device:		r/s	w/s	await	svctm	%util
dm-0		15.17	493.46	25.69	0.38	19.23

iostat -c -x results:
avg-cpu:	%user	%nice	%system	%iowait	%steal	%idle
		0.71	0.04	1.07	8.91	0.00	89.26

vmstat 5 results:
swpd	free	buff	cache	si	so
100	144340	180492	2453288	0	0

bi	bo	in	cs	us	sy	id	wa	st
31	966	72	203	1	1	89	9	0


thanks 
Domagoj






On Fri, 2009-08-21 at 12:21 +0200, Mariusz Gronczewski wrote:
> 2009/8/21 Domagoj Mikac <domagoj.mikac at metronet.hr>:
> > Hi,
> >
> > I don't understand why my RRD files are not being updated.
> > Currently I have 55407 RRD files.
> > # find /opt/collectd/rrd -name *.rrd | wc -l
> > 55407
> >
> >
> > My server is not overloaded. I have plenty of RAM and Hard disk space,
> > but when I check which RRD-s have been modified in last 20 minutes, I
> > see that only 18871 RRD file has been modified.
> Are you sure your disk isn't overloaded ? for example my collectd
> server have about 1500 rrd files and it averages on about 20-30
> ops/sec and about 300kb/sec
> 
> Regards
> Mariusz



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