Re: [ClusterLabs] Pacemaker startup-fencing

2016-03-19 Thread Ferenc Wágner
Andrei Borzenkov writes: > On Wed, Mar 16, 2016 at 2:22 PM, Ferenc Wágner wrote: > >> Pacemaker explained says about this cluster option: >> >> Advanced Use Only: Should the cluster shoot unseen nodes? Not using >> the default is very unsafe! >> >> 1.

Re: [ClusterLabs] Pacemaker startup-fencing

2016-03-19 Thread Andrei Borzenkov
On Wed, Mar 16, 2016 at 4:18 PM, Lars Ellenberg wrote: > On Wed, Mar 16, 2016 at 01:47:52PM +0100, Ferenc Wágner wrote: >> >> And some more about fencing: >> >> >> >> 3. What's the difference in cluster behavior between >> >>- stonith-enabled=FALSE (9.3.2: how often

[ClusterLabs] Pacemaker startup-fencing

2016-03-19 Thread Ferenc Wágner
Hi, Pacemaker explained says about this cluster option: Advanced Use Only: Should the cluster shoot unseen nodes? Not using the default is very unsafe! 1. What are those "unseen" nodes? And a possibly related question: 2. If I've got UNCLEAN (offline) nodes, is there a way to clean

Re: [ClusterLabs] Pacemaker startup-fencing

2016-03-19 Thread Lars Ellenberg
On Wed, Mar 16, 2016 at 01:47:52PM +0100, Ferenc Wágner wrote: > >> And some more about fencing: > >> > >> 3. What's the difference in cluster behavior between > >>- stonith-enabled=FALSE (9.3.2: how often will the stop operation be > >> retried?) > >>- having no configured STONITH

Re: [ClusterLabs] Pacemaker startup-fencing

2016-03-18 Thread Ferenc Wágner
Andrei Borzenkov writes: > On Wed, Mar 16, 2016 at 4:18 PM, Lars Ellenberg > wrote: > >> On Wed, Mar 16, 2016 at 01:47:52PM +0100, Ferenc Wágner wrote: >> > And some more about fencing: > > 3. What's the difference in cluster behavior