Two producer paths double-booked the same damage across repair records
(backlog#1894 axis A):
- The scanner's corrupt-metadata branch fired a durable MRF journal
intent, an immediate High heal request, and a pending-ledger entry for
the same object. When the MRF intent is accepted into the channel it
already covers the repair durably (the consumer files a High Metadata
heal and the journal replays it across restarts), so the immediate
request and ledger entry are dropped in that case; on delivery failure
(feature disabled, channel uninitialized, or full) the old immediate
request + ledger path runs unchanged, keeping the repair safety net.
- The read path filed a journal intent before the read-repair
reservation check, so a burst of reads failing on one object booked a
journal record per retry. The intent now rides the submission: it is
filed only when the sighting wins the dedup TTL, next to the Low
request, via a new optional mrf_intent field on
ReadRepairHealSubmission (None keeps the historical no-intent
behavior for the other read-repair call sites).
Manager dedup-key semantics are untouched; the fix is that competing
producers stop double-booking. With RUSTFS_HEAL_MRF_ENABLE off both
paths behave exactly as before.
Co-authored-by: heihutu <[email protected]>
