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Caitie McCaffrey
@caitie
, 4 tweets, 1 min read Read on Twitter
Scaling any kind of cluster membership protocol beyond single digit thousands is currently a hard problem with Cluster Membership protocols we have today.
Even in the single digit thousands 1k-5k you are going to have to have a team of folks that meticulously attend to your ETCD/ZK/cluster membership service.
Finally discussions of wanting to go beyond this size, rarely talk about failure domains. Do you really want failure domains of 50k nodes, probably not.
I’m super happy to be proven wrong here, but if you are supporting 10k nodes in a single cluster you probably have a SOSP paper to write just saying...
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Caitie McCaffrey
@caitie
So we started running an experiment on my team a couple of months ago where design docs are checked into a repo and reviewed as a PR instead of done in a word doc and stored on a sharepoint or wiki. This was inspired by @github process, and I have to say I love it.
Its really easy to see what comments were made and track that they are addressed, and which docs are a work in progress vs approved. If its in master it is approved, otherwise still in progress.
Its the same tool chain developers use all day to write and review code, so writing and reviewing docs doesn't feel like a huge context switch.
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@fgrosshans
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