Re: Obtaining perf counters/stats from krbd client

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Thanks Greg. I thought as much :(

We are looking into what stats are available and also for ways by which we can obtain stats from krbd, given this is going to be our current deployment in the near term. If this is useful to the community, we can share our findings and a proposal, once we have this available. 

Prashant

On Wed, Jun 28, 2017 at 11:55 AM, Gregory Farnum <gfarnum@xxxxxxxxxx> wrote:
On Thu, Jun 22, 2017 at 11:27 AM Prashant Murthy <pmurthy@xxxxxxxxxxxxxx> wrote:
Hi Ceph users, 

We are currently using the Ceph kernel client module (krbd) in our deployment and we were looking to determine if there are ways by which we can obtain perf counters, log dumps, etc from such a deployment. Has anybody been able to obtain such stats? 

It looks like the libvirt interface allows for an admin socket to be configured on the client (http://docs.ceph.com/docs/master/rbd/libvirt/#configuring-ceph) into which you can issue commands, but is this specific to the librbd implementation? 

Sadly yes; I don't know what statistics are available from krbd, but it doesn't work anything like the userspace stuff that is shared across daemon/client types.
-Greg
 

Thanks,
Prashant

--
Prashant Murthy
Sr Director, Software Engineering | Salesforce
Mobile: 919-961-3041


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--
Prashant Murthy
Sr Director, Software Engineering | Salesforce
Mobile: 919-961-3041


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