sodonnel commented on a change in pull request #881:
URL: https://github.com/apache/hadoop-ozone/pull/881#discussion_r420152320
##########
File path:
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/ReplicationManager.java
##########
@@ -512,25 +523,60 @@ private void handleUnderReplicatedContainer(final
ContainerInfo container,
if (source.size() > 0) {
final int replicationFactor = container
.getReplicationFactor().getNumber();
- final int delta = replicationFactor - getReplicaCount(id, replicas);
+ // Want to check if the container is mis-replicated after considering
+ // inflight add and delete.
+ // Create a new list from source (healthy replicas minus pending
delete)
+ List<DatanodeDetails> targetReplicas = new ArrayList<>(source);
+ // Then add any pending additions
+ targetReplicas.addAll(replicationInFlight);
+
+ int delta = replicationFactor - getReplicaCount(id, replicas);
+ final ContainerPlacementStatus placementStatus =
+ containerPlacement.validateContainerPlacement(
+ targetReplicas, replicationFactor);
+ final int misRepDelta = placementStatus.additionalReplicaRequired();
+ final int replicasNeeded
+ = delta < misRepDelta ? misRepDelta : delta;
+
final List<DatanodeDetails> excludeList = replicas.stream()
.map(ContainerReplica::getDatanodeDetails)
.collect(Collectors.toList());
+ excludeList.addAll(replicationInFlight);
Review comment:
Well spotted. I think I can remove the logic after this line, as I
already have created that list earlier in the method now:
```
if (actionList != null) {
actionList.stream().map(r -> r.datanode)
.forEach(excludeList::add);
}
```
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