Propose 3 as the number of manager nodes (#8827)

* Propose 3 as the number of manager nodes

Propose 3 managers as the default number of manager nodes.

* Minor style updates
This commit is contained in:
David Yu 2019-05-22 11:46:12 -07:00 committed by Maria Bermudez
parent 275fd1c657
commit c38df34383
1 changed files with 4 additions and 3 deletions

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@ -28,14 +28,15 @@ your cluster.
For production-grade deployments, follow these rules of thumb:
* For high availability with minimal
network overhead, the recommended number of manager nodes is 3. The recommended maximum number of manager
nodes is 5. Adding too many manager nodes to the cluster can lead to performance degradation,
because changes to configurations must be replicated across all manager nodes.
* When a manager node fails, the number of failures tolerated by your cluster
decreases. Don't leave that node offline for too long.
* You should distribute your manager nodes across different availability
zones. This way your cluster can continue working even if an entire
availability zone goes down.
* Adding many manager nodes to the cluster might lead to performance
degradation, as changes to configurations need to be replicated across all
manager nodes. The maximum advisable is seven manager nodes.
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