smengcl commented on a change in pull request #2321:
URL: https://github.com/apache/ozone/pull/2321#discussion_r652124228



##########
File path: 
hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/scm/ReconContainerManager.java
##########
@@ -223,12 +234,16 @@ public void addNewContainer(ContainerWithPipeline 
containerWithPipeline)
     ContainerInfo containerInfo = containerWithPipeline.getContainerInfo();
     try {
       if (containerInfo.getState().equals(HddsProtos.LifeCycleState.OPEN)) {
-        PipelineID pipelineID = containerWithPipeline.getPipeline().getId();
+        Pipeline pipeline = containerWithPipeline.getPipeline();
+        PipelineID pipelineID = pipeline.getId();
         if (pipelineManager.containsPipeline(pipelineID)) {
           getContainerStateManager().addContainer(containerInfo.getProtobuf());
           pipelineManager.addContainerToPipeline(
               containerWithPipeline.getPipeline().getId(),
               containerInfo.containerID());
+          // update open container count on all datanodes on this pipeline
+          pipelineToOpenContainer.put(pipelineID,
+                    pipelineToOpenContainer.getOrDefault(pipelineID, 0) + 1);

Review comment:
       Use AtomicInteger for the value




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