[reparentutil / ERS] confirm at least one replica succeeded to `SetMaster`, or fail#7486

Merged

deepthi merged 6 commits intovitessio:masterfrom

tinyspeck:am_ers_setmaster_errors

Feb 16, 2021

Commits on Feb 12, 2021

[ERS] confirm at least one replica succeeded to `SetMaster`, or fail
Andrew Mason
committed
Fix data setup for `reparentShardLocked` cases, handle `Before` == nil case
Andrew Mason
committed
Remove the channel-based signalling in favor of just `AllErrorRecorder` and context cancelling
Andrew Mason
committed

Commits on Feb 13, 2021

PR feedback: attempt to clarify a comment
Andrew Mason
committed

Commits on Feb 16, 2021

Update `ReplicaWasRunning` to propagate error checking, update tests and callers
Andrew Mason
committed
Refactor promotePrimary to separate defensive cases from normal error cases
Andrew Mason
committed