From: "hjwsm1989-gmail" <hjwsm1989@gmail.com>
To: ceph-devel@vger.kernel.org
Subject: set mds message priority to MSG_PRIO_HIGH
Date: Sat, 19 Oct 2013 20:58:46 +0800 [thread overview]
Message-ID: <004001ceccca$f7e0fba0$e7a2f2e0$@gmail.com> (raw)
Hi,
I'm testing ceph with samba.
I have 20 OSD nodes on 4 hosts
dy01:1MON, 5 OSDs, 1 samba server
dy02: 1MDS, 5OSDs, 1 samba server
dy03: 5 OSDs, 1 samba server
dy04:5 OSDs, 1 samba server
every samba server exports the ceph kclient mount point.
When I set 3 samba clients connect to a samba server(dy01), and each write a
single 18GB file, gets 110MB/s speed each.
But when I use 4 clients, the cluster will report 'slow request' msg, and
this time I list files in samba client dir, it gets stuck.
And the test tool reports frame losing.
For the list operation related to MDS, I think the MDS op messages should
have higher priority than clients op.
Have I understood correctly?
thanks
next reply other threads:[~2013-10-19 12:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-19 12:58 hjwsm1989-gmail [this message]
2013-10-19 14:14 ` set mds message priority to MSG_PRIO_HIGH Yan, Zheng
2013-10-22 4:59 ` Gregory Farnum
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