Throttler: fix to client usage in vreplication and table GC #7422
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Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>
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Feb 1, 2021
Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>
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Description
In #7364 we introduced client.go, a throttler client, which we then used in tabletserver/tablegc, vreplication/engine and vstreamer/engine.
In the first two, I used the wrong check type:
ThrottleCheckSelf, where in fact I should have usedThrottleCheckPrimaryWritebecause table GC and vreplication/engine both write to a primary and should therefore consider replication lag on the shard. This must have been a copy+paste mistake.The reason endtoend tests didn't catch this is that we don't have the capacity to run replicas on our vreplication tests, and so we only have primaries; in that scenario both types of checks converge to the same result.
Related Issue(s)
Tracking: #7362
Checklist
Impacted Areas in Vitess
Components that this PR will affect: