Re: [Gluster-users] How to maintain HA using NFS clients if the NFS daemon process gets killed on a gluster node?

2016-01-28 Thread Kris Laib
Raghavendra, This is exactly what I was missing, thanks! Based on the information you gave I was I was able to find and adapt the script from http://xrsa.net/2015/04/25/ctdb-glusterfs-nfs-event-monitor-script/ to work with CentOS 6.7 and stopping the NFS PID now results in CTDB failover in 20

Re: [Gluster-users] How to maintain HA using NFS clients if the NFS daemon process gets killed on a gluster node?

2016-01-27 Thread Raghavendra Talur
On Thu, Jan 28, 2016 at 11:08 AM, Kris Laib wrote: > Soumya, > > CTDB failover works great if the server crashes or the NIC is pulled, but > I don't believe there's anything in the CTDB setup that would cause it to > realize there is a problem if only the glusterfs process

Re: [Gluster-users] How to maintain HA using NFS clients if the NFS daemon process gets killed on a gluster node?

2016-01-27 Thread Kris Laib
Soumya, CTDB failover works great if the server crashes or the NIC is pulled, but I don't believe there's anything in the CTDB setup that would cause it to realize there is a problem if only the glusterfs process responsible for serving NFS is killed but network connectivity with other CTDB

Re: [Gluster-users] How to maintain HA using NFS clients if the NFS daemon process gets killed on a gluster node?

2016-01-27 Thread Gmail
Kris, You can achieve what you want with Corosync-Pacemaker, Corosync is a heartbeat and Pacemaker is a cluster manager. You can create a pacemaker cluster using the hosts used for the Gluster cluster, then configure a virtual IP resource and Gluster monitoring resources with the count of the

Re: [Gluster-users] How to maintain HA using NFS clients if the NFS daemon process gets killed on a gluster node?

2016-01-27 Thread Soumya Koduri
On 01/28/2016 11:08 AM, Kris Laib wrote: Soumya, CTDB failover works great if the server crashes or the NIC is pulled, but I don't believe there's anything in the CTDB setup that would cause it to realize there is a problem if only the glusterfs process responsible for serving NFS is killed

[Gluster-users] How to maintain HA using NFS clients if the NFS daemon process gets killed on a gluster node?

2016-01-27 Thread Kris Laib
Hi all, We're getting ready to roll out Gluster using standard NFS from the clients, and CTDB and RRDNS to help facilitate HA. I thought we were good to know, but recently had an issue where there wasn't enough memory on one of the gluster nodes in a test cluster, and OOM killer took out the

Re: [Gluster-users] How to maintain HA using NFS clients if the NFS daemon process gets killed on a gluster node?

2016-01-27 Thread Soumya Koduri
On 01/27/2016 09:39 PM, Kris Laib wrote: Hi all, We're getting ready to roll out Gluster using standard NFS from the clients, and CTDB and RRDNS to help facilitate HA. I thought we were good to know, but recently had an issue where there wasn't enough memory on one of the gluster nodes in a