Re: [ceph-users] Ceph runs great then falters

2014-08-08 Thread Chris Kitzmiller
On Aug 4, 2014, at 10:53 PM, Christian Balzer wrote: > On Mon, 4 Aug 2014 15:11:39 -0400 Chris Kitzmiller wrote: >> On Aug 2, 2014, at 12:03 AM, Christian Balzer wrote: >>> On Fri, 1 Aug 2014 14:23:28 -0400 Chris Kitzmiller wrote: I have 3 nodes each running a MON and 30 OSDs. ... W

Re: [ceph-users] Ceph runs great then falters

2014-08-04 Thread Christian Balzer
On Mon, 4 Aug 2014 15:11:39 -0400 Chris Kitzmiller wrote: > On Aug 2, 2014, at 12:03 AM, Christian Balzer wrote: > > On Fri, 1 Aug 2014 14:23:28 -0400 Chris Kitzmiller wrote: > > > >> I have 3 nodes each running a MON and 30 OSDs. > > > > Given the HW you list below, that might be a tall order,

Re: [ceph-users] Ceph runs great then falters

2014-08-04 Thread Chris Kitzmiller
On Aug 2, 2014, at 12:03 AM, Christian Balzer wrote: > On Fri, 1 Aug 2014 14:23:28 -0400 Chris Kitzmiller wrote: > >> I have 3 nodes each running a MON and 30 OSDs. > > Given the HW you list below, that might be a tall order, particular CPU > wise in certain situations. I'm not seeing any drama

Re: [ceph-users] Ceph runs great then falters

2014-08-01 Thread Christian Balzer
Hello, On Fri, 1 Aug 2014 14:23:28 -0400 Chris Kitzmiller wrote: > I have 3 nodes each running a MON and 30 OSDs. Given the HW you list below, that might be a tall order, particular CPU wise in certain situations. What is your OS running off, HDDs or SSDs? The leveldbs, for the MONs in parti

[ceph-users] Ceph runs great then falters

2014-08-01 Thread Chris Kitzmiller
I have 3 nodes each running a MON and 30 OSDs. When I test my cluster with either rados bench or with fio via a 10GbE client using RBD I get great initial speeds >900MBps and I max out my 10GbE links for a while. Then, something goes wrong the performance falters and the cluster stops responding