[GitHub] [beam] chamikaramj commented on a change in pull request #14175: [BEAM-10402] Turn on nullness checking in DataflowMetrics

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chamikaramj commented on a change in pull request #14175:
URL: https://github.com/apache/beam/pull/14175#discussion_r590590841



##########
File path: runners/google-cloud-dataflow-java/src/main/java/org/apache/beam/runners/dataflow/DataflowMetrics.java
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@@ -280,22 +296,25 @@ private boolean isMetricTentative(MetricUpdate metricUpdate) {
      * @return a {@link MetricKey} that can be hashed and used to identify a metric.
      */
     private @Nullable MetricKey getMetricHashKey(MetricUpdate metricUpdate) {
-      String internalStepName = metricUpdate.getName().getContext().get("step");
-      String userStepName = getUserStepName(internalStepName);
-
-      if (userStepName == null
-          && (dataflowPipelineJob.transformStepNames == null
-              || !dataflowPipelineJob.transformStepNames.inverse().containsKey(internalStepName))) {
-        // If we can't translate internal step names to user step names, we just skip them
-        // altogether.
+      // If we can't translate internal step names to user step names, give up early
+      if (dataflowPipelineJob.transformStepNames == null) {

Review comment:
       We do not need "dataflowPipelineJob.transformStepNames" for portable job submission. So we should not return here if we can find a valid step name.




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