10 Jul 2022 08:39 PM - last edited on 17 Aug 2022 06:09 AM by Ana_Kuzmenchuk
I read the documentation and learned that Dynatrace recommends clustering with at least three nodes to avoid split-brain sync problems.
My question is: if I want to add more nodes, can I increase it to four or at least six?
Thanks in advance for your answer
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That is absolutely possible. Dynatrace Managed support installations of up to 30 cluster nodes.
Yes, it’s possible to have 4. However, 4 nodes give you just more processing power and storage. Starting from 5 nodes you increase availability as you can lose 2 nodes.
If we had 9 nodes part of a cluster, would you only be able to lose 2 nodes or 3 nodes?
in a RACK aware setup you should be able to lose 3 or does this apply to 9 nodes standard configuration too? The documentation states a cluster of 5 or more nodes can only lose 2 nodes.
In one rack and one dc you can afford losing max 2 nodes regardless of the number of total nodes.
when you run 3 racks then you can lose entire rack - no matter how many nodes are in a rack - so more than two.
in 9 nodes setup I’d recommend 3 racks deployment with 3 nodes in each - if you can have a physical location distribution eg within 3 AWS availability zones in a region
Thank you for the clarity 🙏👍