From: Alphe Salas <asalas@kepler.cl>
To: Christoph Hellwig <hch@infradead.org>, Sage Weil <sweil@redhat.com>
Cc: ceph-devel <ceph-devel@vger.kernel.org>
Subject: Re: Forever growing data in ceph using RBD image
Date: Thu, 17 Jul 2014 15:19:08 -0400 [thread overview]
Message-ID: <53C821AC.1080307@kepler.cl> (raw)
In-Reply-To: <20140717185714.GA10709@infradead.org>
I don t use QEMU /KVM just a plain regular rbd image format 1 map and
mounted to a real machine that is used as proxy for data droping to ceph.
---
Alphe Salas
I.T ingeneer
On 07/17/2014 02:57 PM, Christoph Hellwig wrote:
> On Thu, Jul 17, 2014 at 11:27:31AM -0700, Sage Weil wrote:
>> I assume you are using kvm/qemu? It may be that older versions aren't
>> passing through trims; Josh would know more. Or maybe the trim sizes are
>> too small to let rados effectively deallocate entire objects. Logs might
>> help there.
>
> At least for the qemu version from a few month ago that I'm using in my
> testing I explicitly have to enable passthrough of UNMAP/TRIM on the
> qemu command line.
>
next prev parent reply other threads:[~2014-07-17 19:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-17 14:11 Forever growing data in ceph using RBD image Alphe Salas
2014-07-17 16:35 ` Sage Weil
2014-07-17 18:13 ` Alphe Salas
2014-07-17 18:27 ` Sage Weil
2014-07-17 18:53 ` Alphe Salas
2014-07-17 18:57 ` Christoph Hellwig
2014-07-17 19:19 ` Alphe Salas [this message]
2014-07-17 19:28 ` Sage Weil
2014-07-17 21:24 ` Alphe Salas
2014-08-06 19:02 ` Alphe Salas
2014-07-17 16:47 ` Christoph Hellwig
2014-07-17 18:17 ` Alphe Salas
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=53C821AC.1080307@kepler.cl \
--to=asalas@kepler.cl \
--cc=ceph-devel@vger.kernel.org \
--cc=hch@infradead.org \
--cc=sweil@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.