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

2015-05-13 Thread changqian zuo
.. Thanks Regards Somnath From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of changqian zuo Sent: Tuesday, May 12, 2015 9:00 PM To: ceph-users@lists.ceph.com Subject: [ceph-users] How to debug a ceph read performance problem? Hi, guys, We have been running

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

2015-05-13 Thread changqian zuo
/memory ? 3. Is this all HDD cluster ? 4. Yeah, it is showing health warning, but, not saying anything ! Run, ‘ceph health detail’ to see if it gives extra details or not. Thanks Regards Somnath *From:* changqian zuo [mailto:dummyhacke...@gmail.com] *Sent:* Wednesday, May 13, 2015

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

2015-05-14 Thread changqian zuo
10:39 GMT+08:00 Christian Balzer ch...@gol.com: 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. ceph health detail shows: # ceph health detail HEALTH_WARN mon.bj-ceph10

[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