Re: [ceph-users] How to debug a ceph read performance problem?

2015-05-13 Thread changqian zuo
or journal SSD. 2015-05-14 10:39 GMT+08:00 Christian Balzer : > > Hello, > > On Thu, 14 May 2015 09:36:14 +0800 changqian zuo wrote: > > > 1. No packet drop found in system log. > > > Is that storage node with the "bad" network fixed? > > > 2

Re: [ceph-users] How to debug a ceph read performance problem?

2015-05-13 Thread changqian zuo
ou seeing any packet drop in the system log ? > > > > 2. Also, how many host serving this OSDs ? Host cpu/memory ? > > > > 3. Is this all HDD cluster ? > > > > 4. Yeah, it is showing health warning, but, not saying anything ! Run, > ‘ceph health detail’ to see

Re: [ceph-users] How to debug a ceph read performance problem?

2015-05-13 Thread changqian zuo
nd then no response..cur MB/s is becoming 0s.. > > What is ‘ceph –s’ output ? > > Hope all the OSDs are up and running.. > > > > Thanks & Regards > > Somnath > > > > From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of > > cha

[ceph-users] How to debug a ceph read performance problem?

2015-05-12 Thread changqian zuo
Hi, guys, We have been running an OpenStack Havana environment with Ceph 0.72.2 as block storage backend. Recently we were trying to upgrade OpenStack to Juno. For testing, we deployed a Juno all-in-one node, this node share the same Cinder volume rbd pool and Glance image rbd pool with the old Ha