JAkutenshi commented on code in PR #4707:
URL: https://github.com/apache/ignite-3/pull/4707#discussion_r1843763044


##########
modules/placement-driver/src/main/java/org/apache/ignite/internal/placementdriver/LeaseUpdater.java:
##########
@@ -389,19 +389,19 @@ private void updateLeaseBatchInternal() {
             Map<ReplicationGroupId, Boolean> toBeNegotiated = new HashMap<>();
             Map<ReplicationGroupId, Lease> renewedLeases = new 
HashMap<>(leasesCurrent.leaseByGroupId());
 
-            Map<ReplicationGroupId, TokenizedAssignments> currentAssignments = 
assignmentsTracker.assignments();
-            Set<ReplicationGroupId> currentAssignmentsReplicationGroupIds = 
currentAssignments.keySet();
+            Map<ReplicationGroupId, TokenizedAssignments> 
currentStableAssignments = assignmentsTracker.stableAssignments();
+            Set<ReplicationGroupId> 
currentStableAssignmentsReplicationGroupIds = currentStableAssignments.keySet();
 
             // Remove all expired leases that are no longer present in 
assignments.
             renewedLeases.entrySet().removeIf(e -> 
clockService.before(e.getValue().getExpirationTime(), now)
-                    && 
!currentAssignmentsReplicationGroupIds.contains(e.getKey()));
+                    && 
!currentStableAssignmentsReplicationGroupIds.contains(e.getKey()));
 
-            int currentAssignmentsSize = currentAssignments.size();
+            int currentStableAssignmentsSize = currentStableAssignments.size();
             int activeLeasesCount = 0;
 
-            for (Map.Entry<ReplicationGroupId, TokenizedAssignments> entry : 
currentAssignments.entrySet()) {
+            for (Map.Entry<ReplicationGroupId, TokenizedAssignments> entry : 
currentStableAssignments.entrySet()) {

Review Comment:
   Both should. Added unionization method that aggregate pendings and stables 
tokenized assignments maps onto map of assignments sets pairs by group id and 
use the pair in the cycle's body



##########
modules/placement-driver/src/main/java/org/apache/ignite/internal/placementdriver/LeaseUpdater.java:
##########
@@ -443,8 +443,19 @@ private void updateLeaseBatchInternal() {
                             ? lease.getLeaseholder()
                             : lease.proposedCandidate();
 
-                    ClusterNode candidate = nextLeaseHolder(assignments, 
grpId, proposedLeaseholder);
+                    ClusterNode candidate = nextLeaseHolder(stableAssignments, 
grpId, proposedLeaseholder);
 
+                    // If there wasn't a candidate among stable assignments 
set then make attempt to select a candidate among pending set
+                    if (candidate == null) {

Review Comment:
   Done



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