denis-chudov commented on code in PR #5092:
URL: https://github.com/apache/ignite-3/pull/5092#discussion_r1958098281


##########
modules/distribution-zones/src/main/java/org/apache/ignite/internal/distributionzones/DistributionZoneManager.java:
##########
@@ -159,29 +133,10 @@ public class DistributionZoneManager extends
     /** Executor for scheduling tasks for scale up and scale down processes. */
     private final StripedScheduledThreadPoolExecutor executor;
 
-    /**
-     * Map with states for distribution zones. States are needed to track 
nodes that we want to add or remove from the data nodes,
-     * schedule and stop scale up and scale down processes.
-     */
-    private final Map<Integer, ZoneState> zonesState = new 
ConcurrentHashMap<>();
+    private DataNodesManager dataNodesManager;
 
     /** Listener for a topology events. */
-    private final LogicalTopologyEventListener topologyEventListener = new 
LogicalTopologyEventListener() {
-        @Override
-        public void onNodeJoined(LogicalNode joinedNode, 
LogicalTopologySnapshot newTopology) {
-            updateLogicalTopologyInMetaStorage(newTopology);
-        }
-
-        @Override
-        public void onNodeLeft(LogicalNode leftNode, LogicalTopologySnapshot 
newTopology) {
-            updateLogicalTopologyInMetaStorage(newTopology);
-        }
-
-        @Override
-        public void onTopologyLeap(LogicalTopologySnapshot newTopology) {
-            updateLogicalTopologyInMetaStorage(newTopology);
-        }
-    };
+    private final LogicalTopologyEventListener topologyEventListener = new 
DistributionZoneManagerLogicalTopologyEventListener();
 
     /**
      * The logical topology mapped to the MS revision.

Review Comment:
   It's not related. I will create another ticket for todo.



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