Add ErrorGroup
to package concurrency, use in waitOnNMinusOneTablets
#7429
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Description
This is part of a larger effort to migrate
PlannedReparentShard
andEmergencyReparentShard
for #7428, and I'm trying to lead with some refactors to make the actual final change less scary (I'm working on a few more extractions that will have tests attached to them, which should hopefully give us even more confidence in the final change).Related Issue(s)
Checklist
Deployment Notes
Impacted Areas in Vitess
Components that this PR will affect: