Servers with 40+ disks : to group or not to group ?

2011-07-02 Thread Wilfrid Allembrand
Hi everyone, I'm trying to figure out what is the best OSD solution with an infrastructure made up of servers with a lot a disks in each. Say, for exemple you have 4+ nodes like Sun Fire X4500 (code-named Thumper). Each node is 48 disks. What are the pros and cons to build a ceph cluster with

Read speed. again.

2011-07-02 Thread Fyodor Ustinov
Hi! ceph 0.30 the rate of re-reading the file 10G. 13 OSD servers (ie the file is already in the cache in OSD servers). cfuse: 118 MB/s kenel (3.0.0-rc3): 84.0 MB/s :( WBR, Fyodor. -- To unsubscribe from this list: send the line unsubscribe ceph-devel in the body of a message to

Re: Read speed. again.

2011-07-02 Thread Sage Weil
On Sat, 2 Jul 2011, Fyodor Ustinov wrote: Hi! ceph 0.30 the rate of re-reading the file 10G. 13 OSD servers (ie the file is already in the cache in OSD servers). cfuse: 118 MB/s kenel (3.0.0-rc3): 84.0 MB/s :( Yeah, this is still on the list. We can include it in the next sprint

Re: Read speed. again.

2011-07-02 Thread Fyodor Ustinov
On 07/02/2011 11:45 PM, Sage Weil wrote: On Sat, 2 Jul 2011, Fyodor Ustinov wrote: Hi! ceph 0.30 the rate of re-reading the file 10G. 13 OSD servers (ie the file is already in the cache in OSD servers). cfuse: 118 MB/s kenel (3.0.0-rc3): 84.0 MB/s :( Yeah, this is still on the list. We

MDS crash.

2011-07-02 Thread Fyodor Ustinov
Hi! mds - 0.30 I can not to reproduce, sorry. mds/Locker.cc: In function 'void Locker::file_excl(ScatterLock*, bool*)', in thread '0x7fefc6c68700' mds/Locker.cc: 3982: FAILED assert(in-get_loner() = 0 in-mds_caps_wanted.empty()) ceph version 0.30

Re: MDS crash.

2011-07-02 Thread Sage Weil
Which commit were you running? sage On Sun, 3 Jul 2011, Fyodor Ustinov wrote: Hi! mds - 0.30 I can not to reproduce, sorry. mds/Locker.cc: In function 'void Locker::file_excl(ScatterLock*, bool*)', in thread '0x7fefc6c68700' mds/Locker.cc: 3982: FAILED assert(in-get_loner() = 0

Re: MDS crash.

2011-07-02 Thread Fyodor Ustinov
On 07/03/2011 01:03 AM, Sage Weil wrote: Which commit were you running? On mds server from here: deb http://ceph.newdream.net/debian/ natty main deb-src http://ceph.newdream.net/debian/ natty main -- To unsubscribe from this list: send the line unsubscribe ceph-devel in the body of a message