!
Xiaoxi
-Original Message-
From: Sage Weil [mailto:s...@inktank.com]
Sent: 2013年1月13日 0:57
To: Chen, Xiaoxi
Cc: Mark Nelson; Yan, Zheng ; ceph-devel@vger.kernel.org
Subject: RE: Seperate metadata disk for OSD
On Sat, 12 Jan 2013, Chen, Xiaoxi wrote
Xiaoxi
-Original Message-
From: Sage Weil [mailto:s...@inktank.com]
Sent: 2013?1?13? 0:57
To: Chen, Xiaoxi
Cc: Mark Nelson; Yan, Zheng ; ceph-devel@vger.kernel.org
Subject: RE: Seperate metadata disk for OSD
On Sat, 12 Jan 2013, Chen, Xiaoxi wrote
On Sat, Jan 12, 2013 at 2:57 PM, Chen, Xiaoxi xiaoxi.c...@intel.com wrote:
Hi list,
For a rbd write request, Ceph need to do 3 writes:
2013-01-10 13:10:15.539967 7f52f516c700 10 filestore(/data/osd.21)
_do_transaction on 0x327d790
2013-01-10 13:10:15.539979 7f52f516c700 15
Hi Xiaoxi and Zheng,
We've played with both of these some internally, but not for a
production deployment. Mostly just for diagnosing performance problems.
It's been a while since I last played with this, but I hadn't seen a
whole lot of performance improvements at the time. That may have
: Mark Nelson [mailto:mark.nel...@inktank.com]
Sent: 2013年1月12日 21:36
To: Yan, Zheng
Cc: Chen, Xiaoxi; ceph-devel@vger.kernel.org
Subject: Re: Seperate metadata disk for OSD
Hi Xiaoxi and Zheng,
We've played with both of these some internally, but not for a production
deployment. Mostly just
Hi list,
For a rbd write request, Ceph need to do 3 writes:
2013-01-10 13:10:15.539967 7f52f516c700 10 filestore(/data/osd.21)
_do_transaction on 0x327d790
2013-01-10 13:10:15.539979 7f52f516c700 15 filestore(/data/osd.21) write
meta/516b801c/pglog_2.1a/0//-1 36015~147
2013-01-10
