Re: Read/write statistics per RBD image

["Mateusz Skala (UST, POL)" <Mateusz.Skala@xxxxxxxxxxxxxx>]

Thanks  for response.

In ‘ceph perf dump’ there is no statistics for read/write operations on specific RBD image, only for osd and total client operations. I need to get statistics on one specific RBD image, to get top used images. It is possible?

Regards

Mateusz

 

From: Jason Dillaman [mailto:jdillama@xxxxxxxxxx]
Sent: Tuesday, July 17, 2018 3:29 PM
To: Mateusz Skala (UST, POL) <Mateusz.Skala@xxxxxxxxxxxxxx>
Cc: ceph-users <ceph-users@xxxxxxxxxxxxxx>
Subject: Re: [ceph-users] Read/write statistics per RBD image

 

Yes, you just need to enable the "admin socket" in your ceph.conf and then use "ceph --admin-daemon /path/to/image/admin/socket.asok perf dump".

 

On Tue, Jul 17, 2018 at 8:53 AM Mateusz Skala (UST, POL) <Mateusz.Skala@xxxxxxxxxxxxxx> wrote:

Hi,

It is possible to get statistics of issued reads/writes to specific RBD image? Best will be statistics like in /proc/diskstats in linux.

Regards

Mateusz

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--

Jason

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