SyncCounterDocument
Properties
_id
_id:
ObjectId
compactedThroughSeq
compactedThroughSeq:
number
C7 retention watermark: the highest seq on this stream whose row (tombstone or
scope-move marker) has been hard-deleted by compactTombstones. A client whose
cursor is below this may have missed a compacted deletion and must re-bootstrap;
a client at or above it has already seen everything that was reaped. 0 until the
first compaction pass touches the stream.
pending
pending:
SyncPendingClaim[]
C1: seqs claimed but not yet confirmed committed. The stable frontier is
min(pending.seq) - 1, or seq (the head) when empty, so a cursor never
advances past a seq whose owning write has not yet landed.
seq
seq:
number
stream
stream:
string