update quorum requirement to list all objects (#14201)

some upgraded objects might not get listed due
to different quorum ratios across objects.

make sure to list all objects that satisfy the
maximum possible quorum.

cmd/data-scanner.go

@@ -289,7 +289,7 @@ func scanDataFolder(ctx context.Context, poolIdx, setIdx int, basePath string, c
 			if poolIdx < len(objAPI.serverPools) && setIdx < len(objAPI.serverPools[poolIdx].sets) {
 				// Pass the disks belonging to the set.
 				s.disks = objAPI.serverPools[poolIdx].sets[setIdx].getDisks()
-				s.disksQuorum = objAPI.serverPools[poolIdx].sets[setIdx].defaultRQuorum()
+				s.disksQuorum = len(s.disks) / 2
 			} else {
 				logger.LogIf(ctx, fmt.Errorf("Matching pool %s, set %s not found", humanize.Ordinal(poolIdx+1), humanize.Ordinal(setIdx+1)))
 			}

cmd/erasure-object.go

@@ -1037,7 +1037,7 @@ func (er erasureObjects) DeleteObjects(ctx context.Context, bucket string, objec
 		// class for objects which have reduced quorum
 		// storage class only needs to be honored for
 		// Read() requests alone which we already do.
-		writeQuorums[i] = er.defaultWQuorum()
+		writeQuorums[i] = len(storageDisks)/2 + 1
 	}
 
 	versionsMap := make(map[string]FileInfoVersions, len(objects))
@@ -1153,9 +1153,7 @@ func (er erasureObjects) DeleteObjects(ctx context.Context, bucket string, objec
 			errs[objIndex] = toObjectErr(err, bucket, objects[objIndex].ObjectName)
 		}
 
-		if errs[objIndex] == nil {
-			defer NSUpdated(bucket, objects[objIndex].ObjectName)
-		}
+		defer NSUpdated(bucket, objects[objIndex].ObjectName)
 	}
 
 	// Check failed deletes across multiple objects

cmd/erasure-server-pool-decom.go

@@ -682,8 +682,8 @@ func (z *erasureServerPools) decommissionPool(ctx context.Context, idx int, pool
 
 		// How to resolve partial results.
 		resolver := metadataResolutionParams{
-			dirQuorum: set.defaultRQuorum(),
-			objQuorum: set.defaultRQuorum(),
+			dirQuorum: len(disks) / 2, // make sure to capture all quorum ratios
+			objQuorum: len(disks) / 2, // make sure to capture all quorum ratios
 			bucket:    bName,
 		}
 
@@ -692,7 +692,7 @@ func (z *erasureServerPools) decommissionPool(ctx context.Context, idx int, pool
 			bucket:         bName,
 			recursive:      true,
 			forwardTo:      forwardTo,
-			minDisks:       len(disks),
+			minDisks:       len(disks) / 2, // to capture all quorum ratios
 			reportNotFound: false,
 			agreed:         decommissionEntry,
 			partial: func(entries metaCacheEntries, nAgreed int, errs []error) {

cmd/metacache-set.go

@@ -542,13 +542,9 @@ func (er *erasureObjects) listPath(ctx context.Context, o listPathOptions, resul
 	var fallbackDisks []StorageAPI
 
 	// Special case: ask all disks if the drive count is 4
-	if askDisks == -1 || er.setDriveCount == 4 {
-		askDisks = len(disks) // with 'strict' quorum list on all online disks.
-		listingQuorum = er.defaultRQuorum()
-	}
-	if askDisks == 0 {
-		askDisks = globalAPIConfig.getListQuorum()
-		listingQuorum = askDisks
+	if askDisks <= 0 || er.setDriveCount == 4 {
+		askDisks = len(disks)          // with 'strict' quorum list on all online disks.
+		listingQuorum = len(disks) / 2 // keep this such that we can list all objects with different quorum ratio.
 	}
 	if askDisks > 0 && len(disks) > askDisks {
 		rand.Shuffle(len(disks), func(i, j int) {