HI , someone please help me understand following excerpt from Dynatrace document :
"If you plan to distribute nodes in separate data centers, you shouldn't deploy more than two nodes in each data center. The replication factor of three then ensures that each data center has all the metric and event data. Also, for seamless continuity you need at least three data centers, one of which can fail. "
"Plan to deploy a minimum of three nodes per cluster "
Q. What is the importance of having two nodes or three nodes in cluster?
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That is correct statement. Let me explain it to you.
For a high availability deployment across multiple data-centers we currently support only 1 model with a following requirements:
Considering then we have the replication factor of three then ensures that each data center has all the metric and event data:
Having 3 nodes at each DC makes no sense e.g. (3+3+3), as losing 3 nodes out of 9 nodes breaks the cluster.
We are working now on a Premium High Availability solution that address above issues and limitations.