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What this PR does / why we need it:
It adds
distributor.sloppy-quorumopt-in flag.When enabled, writes will succeed if there is a sloppy quorum of ingesters available, providing much higher availability than the default replication strategy.
This is needed to pretend being
Dynamo-style quorum consistency(https://grafana.com/docs/loki/latest/overview/). Else it'sCassandra style quorum consistency.Which issue(s) this PR fixes:
Fixes grafana#3360
Special notes for your reviewer:
Checklist