sodonnel commented on code in PR #3781:
URL: https://github.com/apache/ozone/pull/3781#discussion_r1004458588


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hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/node/DatanodeAdminMonitorImpl.java:
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@@ -74,6 +76,58 @@ public class DatanodeAdminMonitorImpl implements 
DatanodeAdminMonitor {
   private Queue<DatanodeDetails> pendingNodes = new ArrayDeque();
   private Queue<DatanodeDetails> cancelledNodes = new ArrayDeque();
   private Set<DatanodeDetails> trackedNodes = new HashSet<>();
+  private NodeDecommissionMetrics metrics;
+  private long pipelinesWaitingToClose = 0;
+  private long sufficientlyReplicatedContainers = 0;
+  private long trackedDecomMaintenance = 0;
+  private long trackedRecommission = 0;
+  private long unhealthyContainers = 0;
+  private long underReplicatedContainers = 0;
+
+  private static final class ContainerStateInWorkflow {
+    private long sufficientlyReplicated = 0;
+    private long unhealthyContainers = 0;
+    private long underReplicatedContainers = 0;
+    private String host = "";
+    private long pipelinesWaitingToClose = 0;
+
+    private ContainerStateInWorkflow(String host,
+                                     long sufficientlyReplicated,

Review Comment:
   Do we ever pass non-zeros for these values? Perhaps we can just drop these 
parameters and let them default to zero?



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