High Availability questions..
First of all, I want to congrats the developers and the community. Linode is really great. Fantastic service and support.
Right now, I'm in the process of implementing High Availability in a two node cluster.
I followed that guide
1- How CRM config is shared? CRM being pacemaker config (crm configure edit). I mean, when you edit the config in the first linode, is the config automatically shared to the second linode (slave)?
2- How DRBD mounting/unmounting works? I've noticed in the tutorial you have to unmount the DRBD ressource. I find it strange that after that when I ls -l that directory, nothing is present.
3- Following that tutorial, I had to use PV-GRUB as the kernel. Is it normal that every time the linodes boot with PV-GRUB I receive the following kernel errors
Thank you very much in advance.
I want to learn and get better at this
3 Replies
Anyone else seeing the constant crashing of Pacemaker?
@hopiquick:
Hi all.
First of all, I want to congrats the developers and the community. Linode is really great. Fantastic service and support.
Right now, I'm in the process of implementing High Availability in a two node cluster.
I followed that
but everytime I end up having some troubles of some sort. I read a couple of sections of the DRBD, pacemaker and heartbeat user guides. None the less, I have some questions I hope you guys can answer. guide1- How CRM config is shared? CRM being pacemaker config (crm configure edit). I mean, when you edit the config in the first linode, is the config automatically shared to the second linode (slave)?
2- How DRBD mounting/unmounting works? I've noticed in the tutorial you have to unmount the DRBD ressource. I find it strange that after that when I ls -l that directory, nothing is present.
3- Following that tutorial, I had to use PV-GRUB as the kernel. Is it normal that every time the linodes boot with PV-GRUB I receive the following kernel errors
http://p.linode.com/5426 through my logwatch?Thank you very much in advance.
I want to learn and get better at this
;)
Anyone had success with it?
So, yeah, the tutorial helped me set that up.