feat(ring): Add the option of having a lower consistency level #686
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This is consistent with what defaultReplicationStrategy is doing, and allows for read consistency different from quorum.
- any always reads from a single zone - relaxed_quorum tries to use a quorum, and if that fails uses all available zones Enabling this setting trades consistency for availability.
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This set of changes adds an optional consistency level for
ring.Ring(defaulting to existing behavior of a quorum ofRF/2+1).This setting is going to be used by a follow-up change in Mimir (draft here) to optionally use a lower consistency level in read operations to trade lower consistency for higher availability.
Checklist
CHANGELOG.mdupdated - the order of entries should be[CHANGE],[FEATURE],[ENHANCEMENT],[BUGFIX]