yan_gao

yan_gao

More significant HA cluster node wins fencing match under 2-node split-brain

a project by yan_gao

In a 2-node HA cluster without quorum server, since neither of the cluster nodes (partitions) has more than 50% votes in case of split-brain, we should configure corosync.conf to enable two_ndoe: 1, so that both nodes (partitions) will be granted "quorum". But there'll be potential fencing matches which could introduce double-fencing by chances. The current solution is using random/static fencing delays by configuring pcmk_delay_max/base parameters for stonith resources to prevent double-fencing.

Updated about 1 year ago. 1 hackers ♥️. 1 follower.