[ClusterLabs] Q: effieciently collecting some cluster facts

[Christine Caulfield]

The most efficient way of getting corosync facts about nodes/quorum is 
to use the votequorum API.

see /usr/include/corosync/votequorum.h
and in the corosync sources tarball tests/testvotequorum1.c

CHrissie


On 25/02/2021 07:16, Ulrich Windl wrote:
> Hi!
> 
> I'm thinking about some simple cluster status display that is updated periodically.
> I wonder how to get some "cluster facts" efficiently. Among those are:
> 
> * Is corosync running, and how many nodes can be seen?
> * Is Pacemaker running, how many nodes does it see, and does it have a quorum?
> * Is the current node DC?
> * How many resources matching some regular expression are running?
> 
> Regards,
> Ulrich
> 
> 
> 
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