Villalta [
> ja...@rubixnet.com]
> *Sent:* 12 April 2014 16:41
> *To:* Greg Poirier
> *Cc:* ceph-users@lists.ceph.com
> *Subject:* Re: [ceph-users] Useful visualizations / metrics
>
> I know ceph throws some warnings if there is high write latency. But i
> would be mo
-boun...@lists.ceph.com [ceph-users-boun...@lists.ceph.com] on
behalf of Jason Villalta [ja...@rubixnet.com]
Sent: 12 April 2014 16:41
To: Greg Poirier
Cc: ceph-users@lists.ceph.com
Subject: Re: [ceph-users] Useful visualizations / metrics
I know ceph throws some warnings if there is high write
I've been graphing disk latency, osd
latency, and RGW latency. It's a bit tricky to pull out of ceph
--admin-daemon ceph-osd.0.asok perf dump though. perf dump
gives you the total ops and total op time. You have to track the
delta of those two values, then di
We are collecting system metrics through sysstat every minute and getting
those to OpenTSDB via Sensu. We have a plethora of metrics, but I am
finding it difficult to create meaningful visualizations. We have alerting
for things like individual OSDs reaching capacity thresholds, memory spikes
on OS
One thing I do right now for ceph performance testing is run a copy of
collectl during every test. This gives you a TON of information about
CPU usage, network stats, disk stats, etc. It's pretty easy to import
the output data into gnuplot. Mark Seger (the creator of collectl) also
has some
I know ceph throws some warnings if there is high write latency. But i
would be most intrested in the delay for io requests, linking directly to
iops. If iops start to drop because the disk are overwhelmed then latency
for requests would be increasing. This would tell me that I need to add
more
Curious as to how you define cluster latency.
On Sat, Apr 12, 2014 at 7:21 AM, Jason Villalta wrote:
> Hi, i have not don't anything with metrics yet but the only ones I
> personally would be interested in is total capacity utilization and cluster
> latency.
>
> Just my 2 cents.
>
>
> On Sat, A
Hi, i have not don't anything with metrics yet but the only ones I
personally would be interested in is total capacity utilization and cluster
latency.
Just my 2 cents.
On Sat, Apr 12, 2014 at 10:02 AM, Greg Poirier wrote:
> I'm in the process of building a dashboard for our Ceph nodes. I was
>
