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CockroachDB user documentation
https://cockroachlabs.com/docs
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upgrade: mention query distribution issues in mixed-clusters #8557

Open RaduBerinde opened 3 years ago

RaduBerinde commented 3 years ago

Radu Berinde (RaduBerinde) commented:

In most cases when we are upgrading between major versions, queries that go to an upgraded node can only distribute among the other upgraded nodes. This can mean that local data accesses can become remote data accesses and some queries can be slower.

We should mention this in the notes and recommend to upgrade all nodes as fast as possible and avoid staying in a mixed-version state.

Jira Issue: DOC-795

lnhsingh commented 3 years ago

@ericharmeling I think this falls under SQL but feel free to reroute (possibly to @taroface?)

jseldess commented 3 years ago

This is about rolling upgrades, so it falls under Deploy & Ops.