Hi ClusterLabs development,
I am in the process of deploying a two-node cluster on AWS and using the fence_aws fence agent for fencing. I was reading through the following article about common pitfalls in configuring two-node Pacemaker clusters: https://www.thegeekdiary.com/most-common-two-node-pacemaker-cluster-issues-and-their-workarounds/ and the only concern I have is regarding the fencing device. If I read this correctly, there is no need to configure delayed fencing if the fence device can guarantee serialized access. My question here is does the fence_aws agent guarantee serialized access? In the event of a loss of communication between the two cluster nodes, can I guarantee that one host will win the race to fence the other and I won't end up in a situation where both hosts get fenced. Do I need to implement delayed fencing with the fence_aws agent or not? I appreciate any feedback. Thanks, Phil Stedman Db2 High Availability Development and Support Email: pmste...@us.ibm.com
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