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ESM -DetermineIfPrimaryESM

hello MacAfee team ,

Where can I found some documentation how EMS nodes determined which one is management and which are non management server ?

What mechanism are implemented to prevent split brain scenario for 2 nodes  ( both nodes starts as management nodes / both nodes start as non-managements nodes )?

best regards 

Piotr

1 Reply
lratcliffe
McAfee Employee
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Re: ESM -DetermineIfPrimaryESM

There's no public documentation on this, but the basic concept is quorum-based.  The ESMs communicate with each other, if more than half the ESMs agree on any node being the cluster master, then that node is the cluster master.  This can cause issues in 2-node clusters (if only one of the 2 nodes is available, getting it to promote to primary is not straightforward) - these are currently being investigated.

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