nandakumar131 commented on a change in pull request #1423:
URL: https://github.com/apache/hadoop-ozone/pull/1423#discussion_r491900009
##########
File path:
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/ReplicationManager.java
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@@ -660,21 +660,23 @@ private void handleOverReplicatedContainer(final
ContainerInfo container,
if (excess > 0) {
eligibleReplicas.removeAll(unhealthyReplicas);
Set<ContainerReplica> replicaSet = new HashSet<>(eligibleReplicas);
- boolean misReplicated =
- getPlacementStatus(replicaSet, replicationFactor)
- .isPolicySatisfied();
+ ContainerPlacementStatus ps =
+ getPlacementStatus(replicaSet, replicationFactor);
for (ContainerReplica r : eligibleReplicas) {
if (excess <= 0) {
break;
}
// First remove the replica we are working on from the set, and then
// check if the set is now mis-replicated.
replicaSet.remove(r);
- boolean nowMisRep = getPlacementStatus(replicaSet, replicationFactor)
- .isPolicySatisfied();
- if (misReplicated || !nowMisRep) {
- // Remove the replica if the container was already mis-replicated
- // OR if losing this replica does not make it become mis-replicated
+ ContainerPlacementStatus nowPS =
+ getPlacementStatus(replicaSet, replicationFactor);
+ if ((!ps.isPolicySatisfied()
+ && nowPS.actualPlacementCount() == ps.actualPlacementCount())
+ || (ps.isPolicySatisfied() && nowPS.isPolicySatisfied())) {
Review comment:
Why do we need such a complex condition check?
Won't fixing the previous check solve the problem?
```if (misReplicated || !nowMisRep)``` to ```if (!misReplicated ||
nowMisRep)```
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