swamirishi commented on code in PR #3836:
URL: https://github.com/apache/ozone/pull/3836#discussion_r1004565273
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hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/ECUnderReplicationHandler.java:
##########
@@ -353,8 +386,77 @@ private void processMaintenanceOnlyIndexes(
DatanodeDetails target = iterator.next();
commands.put(target, replicateCommand);
additionalMaintenanceCopiesNeeded -= 1;
+ maintIndexes.remove(replica.getReplicaIndex());
+ createdIndexes.add(replica.getReplicaIndex());
+ }
+ }
+ }
+
+ /**
+ * Function processes Replicas to fix placement policy issues.
+ * @param replicas
+ * @param deletionInFlight
+ * @param container
+ * @param excludedNodes
+ * @param sources
+ * @param createdIndexes
+ * @param placementStatus
+ * @throws IOException
+ */
+ private Map<DatanodeDetails, SCMCommand<?>> processMisreplication(
+ Set<ContainerReplica> replicas,
+ List<DatanodeDetails> deletionInFlight, ContainerInfo container,
+ List<DatanodeDetails> excludedNodes,
+ Map<Integer, Pair<ContainerReplica, NodeStatus>> sources,
+ Set<Integer> createdIndexes, ContainerPlacementStatus
placementStatus)
+ throws IOException {
+ if (placementStatus.isPolicySatisfied() ||
+ placementStatus.misReplicationCount() <= createdIndexes.size()) {
+ return Collections.emptyMap();
+ }
+ Map<DatanodeDetails, SCMCommand<?>> commands = new HashMap<>();
+ List<Integer> sortedReplicaIdx =
+ getSourcesStream(replicas, deletionInFlight)
+ .collect(Collectors.groupingBy(
+ r -> r.getLeft().getReplicaIndex(),
+ Collectors.counting()))
+ .entrySet().stream()
+ .sorted(Comparator.comparingLong(Map.Entry::getValue))
+ .map(Map.Entry::getKey).collect(Collectors.toList());
+ int additionalCopiesForPlacementStatus =
+ placementStatus.misReplicationCount() - createdIndexes.size();
+ List<DatanodeDetails> targets = getTargetDatanodes(excludedNodes,
container,
Review Comment:
This is taken care by the rack scatter policy which would fail if the
selection doesn't conform to the policy
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