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Merge pull request #15338 from bharrisau/patch-1

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Correct multi-cluster number recommendations
This commit is contained in:
Marek Grabowski 2015-10-15 09:28:07 +02:00
commit e7ddb4f9a6
1 changed files with 3 additions and 2 deletions
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docs/admin/multi-cluster.md
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@ -80,8 +80,9 @@ Second, decide how many clusters should be able to be unavailable at the same ti
the number that can be unavailable `U`. If you are not sure, then 1 is a fine choice.
If it is allowable for load-balancing to direct traffic to any region in the event of a cluster failure, then
you need `R + U` clusters. If it is not (e.g you want to ensure low latency for all users in the event of a
cluster failure), then you need to have `R * U` clusters (`U` in each of `R` regions). In any case, try to put each cluster in a different zone.
you need at least the larger of `R` or `U + 1` clusters. If it is not (e.g you want to ensure low latency for all
users in the event of a cluster failure), then you need to have `R * (U + 1)` clusters
(`U + 1` in each of `R` regions). In any case, try to put each cluster in a different zone.
Finally, if any of your clusters would need more than the maximum recommended number of nodes for a Kubernetes cluster, then
you may need even more clusters. Kubernetes v1.0 currently supports clusters up to 100 nodes in size, but we are targeting