[Pacemaker] Installation woes (w/Debian packages)

[Andrew Beekhof]

On Fri, Oct 16, 2009 at 10:54 AM, Raoul Bhatia [IPAX] <r.bhatia at ipax.at> wrote:
> On 10/16/2009 09:59 AM, Matthew Palmer wrote:
>> If this were a single-machine service, I'd completely agree with you.
>> Unfortunately, a cluster service like pacemaker needs to have absolutely
>> consistent configuration across all the nodes in the cluster, and having it
>> read off a file on disk would make that *amazingly* difficult and dangerous.
>> I remember the fun and games I had dealing with cman (or whatever it was
>> that went with that) and it's "read an XML config file and update everyone"
>> model.  I'll take "crm configure edit" over that any day, TYVM.
>
> to my knowledge, if no cib.xml file exists, pacemaker creates an empty
> one with epoch="0" (or similar, to my experience at least < 100 ;) )
>
> i've done the following steps numerous times:
> 1. stop pacemaker on all nodes
> 2. erase all cib.xml related files
> 3. drop a new cib.xml into the correct directory on one node
> 4. set the correct permissions
> 5. startup all nodes
> 6. witness the new configuration unfold

Yep, if you must take this approach, then the above steps are correct :-)

Though these days, its probably easier to skip steps 3 and 4 and load
the config using the crm shell.