Re: [Pacemaker] Configuring cluster with ports

2011-03-10 Thread David McCurley
Okay, so assuming the VIP travels with the active server, one idea would be to have an iptables rule on each server that does a local redirect: On the 8081 machine: iptables -t nat -I PREROUTING --source 0/0 --destination 0/0 -p tcp --dport 8080 -j REDIRECT --to-ports 8081 And on the 8082 mach

Re: [Pacemaker] Failing back a multi-state resource eg. DRBD

2011-03-04 Thread David McCurley
Are you wanting to move all the resources back or just that one resource? I'm still learning, but one simple way I move all resources back from nodeb to nodea is like this: # on nodeb sudo crm node standby # now services migrate to nodea # still on nodeb sudo crm node online This may be a naive

Re: [Pacemaker] Validate strategy for RA on DRBD standby node

2011-03-03 Thread David McCurley
ager" > Sent: Friday, February 25, 2011 10:53:34 AM > Subject: Re: [Pacemaker] Validate strategy for RA on DRBD standby node > On Thu, Feb 24, 2011 at 10:49:27AM -0500, David McCurley wrote: > > Thanks for the quick reply and especially the link. It was much > > better and m

Re: [Pacemaker] Validate strategy for RA on DRBD standby node

2011-02-24 Thread David McCurley
on DRBD standby node > > Why are you trying to start LDAP on a node where you don't have your > DRBD resource mounted. Having LDAP up on both nodes would make sense > if you were building an active/active LDAP cluster with syncrepl or > any other replication mechanism. In that cas

Re: [Pacemaker] Validate strategy for RA on DRBD standby node

2011-02-24 Thread David McCurley
Thanks for the quick reply and especially the link. It was much better and more thorough in testing than the other shell ra ldap link I found. > That would be the first python RA. BTW, there was recently posted > slapd RA (implemented in shell), which I should review, but > haven't done that yet

[Pacemaker] Validate strategy for RA on DRBD standby node

2011-02-24 Thread David McCurley
Pacemaker and list newbie here :) I'm writing a resource adapter in python for the newer release of OpenLDAP but I need some pointers on a strategy for the validate function in a certain case. (In python because the more advanced shell scripting hurts my head :). Here is the situation: The c