Re: [Linux-cluster] Finding the bottleneck between SAN and GFS2

2015-07-01 Thread Steven Whitehouse
Hi, On 30/06/15 20:37, Daniel Dehennin wrote: Hello, We are experiencing slow VMs on our OpenNebula architecture: - two Dell PowerEdge M620 + Intel(R) Xeon(R) CPU E5-2620 v2 @ 2.10GHz + 96GB RAM + 2x146Go SAS drives - 2TB SAN LUN to store qcow2 images with GFS2 over cLVM We made

Re: [Linux-cluster] Finding the bottleneck between SAN and GFS2

2015-07-01 Thread Daniel Dehennin
Steven Whitehouse swhit...@redhat.com writes: Why are you using the ping_pong test? Does qemu use fcntl locks? Are you trying to share any of those images across nodes? (i.e. mounted on more than one node at once?) No, but I didn't know what and where to look, I test it if it could be

Re: [Linux-cluster] new cluster setup error

2015-07-01 Thread Megan .
Got it. didn't have the correct perms on /tmp On Wed, Jul 1, 2015 at 8:35 AM, Megan . nagem...@gmail.com wrote: I started ricci in debug mode and I get the below error. Any idea where its trying to open a temp file? as far as i can see everything in /var/lib/ricci is good

Re: [Linux-cluster] new cluster setup error

2015-07-01 Thread Megan .
I started ricci in debug mode and I get the below error. Any idea where its trying to open a temp file? as far as i can see everything in /var/lib/ricci is good [root@admin1-dit init.d]# ricci -u ricci -df failed to load authorized CAs failed to load authorized CAs client added

Re: [Linux-cluster] Finding the bottleneck between SAN and GFS2

2015-07-01 Thread Bob Peterson
- Original Message - Hello, We are experiencing slow VMs on our OpenNebula architecture: (snip) The short result is that bare metal access to the GFS2 without any cache is terribly slow, around 2Mb/s and 90 requests/s. Is there a way to find out if the problem comes from my

Re: [Linux-cluster] new cluster setup error

2015-07-01 Thread Megan .
Thanks for your help. I shutdown iptables, turned down selinux for now, ricci is up, modclusterd is up. Still get the same error as before. Right now i do not have a cluster.conf but if i put one that i generate manually there i still get the same error. [root@admin1-dit ~]# getenforce

Re: [Linux-cluster] new cluster setup error

2015-07-01 Thread Jan Pokorný
Hello Megan once again, On 01/07/15 08:58 -0400, Megan . wrote: Got it. didn't have the correct perms on /tmp glad to hear you've found out the cause. On Wed, Jul 1, 2015 at 8:35 AM, Megan . nagem...@gmail.com wrote: On Wed, Jul 1, 2015 at 6:53 AM, Megan . nagem...@gmail.com wrote: On Tue,