Hello,
On Tue, Sep 24, 2013 at 05:51:57PM +0200, Mariusz Gronczewski wrote:
> You *could* just bump up flush timers in rrdtool plugin like that:
As an alternative, the "WritesPerSecond" might be interesting, because
the number of writes performed no longer depends on the number of
metrics on your
2013/9/10 Thomas Harold
> On 8/16/2013 4:14 AM, Cyril Feraudet wrote:
>
>> rrdcached is a daemon and a Collectd plugin who replace rrdtool plugin.
>>
>> There is no need to modify your architecture. Just install rrdcached and
>> configure rrdcached Collectd plugin to work with.
>>
>> Before :
>>
Hi,
On Tue, Sep 10, 2013 at 03:44:31PM -0400, Thomas Harold wrote:
> How do you deal with the options:
>
> RRARows 2 # PDPs = timespan / (stepsize * rrarows)
> RRATimespan 32 # 3.7 days (16s)
> RRATimespan 160 # 18.5 days (80s)
> RRATimespan 800 # 92.6 days (400s)
> RRATimespan 80
On 8/16/2013 4:14 AM, Cyril Feraudet wrote:
rrdcached is a daemon and a Collectd plugin who replace rrdtool plugin.
There is no need to modify your architecture. Just install rrdcached and
configure rrdcached Collectd plugin to work with.
Before :
LoadPlugin rrdtool
DataDir "/var/lib/collec
Hi Jesse,
On Fri, Aug 16, 2013 at 06:49:25PM +0930, Jesse Reynolds wrote:
> Sounds too good to be true :-)
collectd's "rrdtool" plugin and RRDCacheD use the same basic principle:
Cache updates to RRD files in memory and write multiple updates at once.
Due to the way RRD files are laid out, this w
Try it and you'll see. rrdcached write to disk on demand and at the
latest when the time specified is out.
I/O may be decreased by 10 or more depending on the "interval" on
collectd side and the '-w' option on rrdcached side.
There is no migration to plan. Just start properly rrdcached and
c
On 16/08/2013, at 5:16 PM, Cyril Feraudet wrote:
> Do you use rrdcached ? If not, use it and all you i/o problem will disappear.
>
Sounds too good to be true :-)
Is the scheduling improved somehow? Is it more efficient with writing the RRD
files? It seems that it will still need to update the
rrdcached is a daemon and a Collectd plugin who replace rrdtool plugin.
There is no need to modify your architecture. Just install rrdcached and
configure rrdcached Collectd plugin to work with.
Before :
LoadPlugin rrdtool
DataDir "/var/lib/collectd/rrd"
After :
LoadPlugin rrdcached
Dae
Hello,
Do you use rrdcached ? If not, use it and all you i/o problem will
disappear.
Regards,
Cyril
Le 2013-08-16 00:39, Jesse Reynolds a écrit :
> Hello,
>
> We're noticing some interesting patterns in collectd / librrd is flushing RRD
> files to disk.
>
> We have a 1TB volume fo
Hello,
We're noticing some interesting patterns in collectd / librrd is flushing RRD
files to disk.
We have a 1TB volume for RRD files, which is at 75% capacity. Over the last few
weeks the response time of the disks has slowly degraded, with a few sudden
jumps (see graph below). When it jum
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