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CockroachDB user documentation
https://cockroachlabs.com/docs
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Update all deployment tutorials to use locality #10311

Open jseldess opened 3 years ago

jseldess commented 3 years ago

Jesse Seldess commented:

In our manual deployment tutorials, we have a paragraph about the need to add locality for multi-region (end of step 3). However, even for single-region clusters, we should be encouraging customers to set locality as a best practice and in preparation for future scaling out to multiple regions. It would also help us to avoid cases where customers have to do a rolling restart to add localities (see https://github.com/cockroachdb/docs/issues/9970).

Likewise, we should guide users to customize their Kubernetes configs to use locality, even for single-region, in preparation for multi-region scaling.

Jira Issue: DOC-1095

jseldess commented 3 years ago

cc @taroface, @mikeCRL, @piyush-singh.

lin-crl commented 3 years ago

I'd like to add that a single region Kubernetes cluster is likely to be deployed on multiple AZs, setting up localities w/ Regions and AZ in that scenario can distribute range across AZs, give stronger resiliency. Otherwise some ranges could place all replicas in a single AZ and can experience unavailable ranges when multiple nodes fail in an AZ, not to mention AZ failure.

taroface commented 3 years ago

Relates to #10479.

jseldess commented 3 years ago

@taroface, did you mean to link to a different issue or PR? Not sure how that one is related...

taroface commented 3 years ago

I had the wrong PR number originally. Or are you referring to #10479?

jseldess commented 3 years ago

Ah ok. No, I was just confused by that previously linked PR. All good.