[ceph-users] Update regarding Ceph RDMA

[Adir Lev]

Hi,

Following a change done in set_priority() from yesterday ceph RDMA is broken at 
latest master
We are working on a fix,
Please use version prior to eb0f62421dd9722055b3a87bfbe129d1325a723f

Thanks

Adir Lev
Mellanox
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Re: [ceph-users] IOPS computation

[Adir Lev]

I’m using this guide for FIO rbd
https://telekomcloud.github.io/ceph/2014/02/26/ceph-performance-analysis_fio_rbd.html

Hope it is helpful

Adir


From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of Vlad 
Blando
Sent: Tuesday, May 24, 2016 11:57 AM
To: ceph-users 
Subject: [ceph-users] IOPS computation

Hi,

Im looking for a guide/formula/ways to measure the total IOPS of a given Ceph 
cluster.

/vlad
[Image removed by sender.]ᐧ
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[ceph-users] rbd map failed

[Adir Lev]

Hi,

I have a CEPH cluster running on 4 physical servers, the cluster is up and 
healthy
So far I was unable to connect any client to the cluster using krbd or fio rbd 
plugin.
My clients can see and create images in rbd pool but cannot map
root@r-dcs68 ~ # rbd ls
fio_test
foo
foo1
foo_test

root@r-dcs68 ~ # rbd map foo
rbd: sysfs write failed
rbd: map failed: (95) Operation not supported

using strace I see that there is no write permissions to /sys/bus/rbd/add
root@r-dcs68 ~ # echo 192.168.57.102:16789 name=admin,key=client.admin rbd foo 
-  /sys/bus/rbd/add
-bash: echo: write error: Operation not permitted

Any idea why I can't map?

Thanks
Adir

--
here's some info about my client:
root@r-dcs68 ~ # uname -r
4.1.0

root@r-dcs68 ~ # cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.0 (Maipo)

root@r-dcs68 ~ # lsmod |grep rbd
rbd62776  0
libceph   236956  1 rbd


and tail of log:
[   49.303330] Key type id_resolver registered
[   49.306638] Key type id_legacy registered
[   70.471743] Key type ceph registered
[   70.474482] libceph: loaded (mon/osd proto 15/24)
[   70.479873] rbd: loaded
[  114.968597] Loading iSCSI transport class v2.0-870.
[  114.975685] iscsi: registered transport (iser)
[  146.061478] ib0: sendonly multicast join failed for 
ff12:401b::::::0016, status -22
[  148.076070] ib0: sendonly multicast join failed for 
ff12:401b::::::0016, status -22
[  190.207159] libceph: client4407 fsid 0169d615-9b5b-432f-9241-4aadf71be9cc
[  190.213774] libceph: mon0 192.168.57.102:16789 session established



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