anmolanmol1234 commented on code in PR #7837:
URL: https://github.com/apache/hadoop/pull/7837#discussion_r2247460310


##########
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/utils/TracingContext.java:
##########
@@ -193,32 +213,33 @@ public void setListener(Listener listener) {
   public void constructHeader(AbfsHttpOperation httpOperation, String 
previousFailure, String retryPolicyAbbreviation) {
     clientRequestId = UUID.randomUUID().toString();
     switch (format) {
-    case ALL_ID_FORMAT: // Optional IDs (e.g. streamId) may be empty
-      header =
-          clientCorrelationID + ":" + clientRequestId + ":" + fileSystemID + 
":"
-              + getPrimaryRequestIdForHeader(retryCount > 0) + ":" + streamID
-              + ":" + opType + ":" + retryCount;
-      header = addFailureReasons(header, previousFailure, 
retryPolicyAbbreviation);
-      if (!(ingressHandler.equals(EMPTY_STRING))) {
-        header += ":" + ingressHandler;
-      }
-      if (!(position.equals(EMPTY_STRING))) {
-        header += ":" + position;
-      }
-      if (operatedBlobCount != null) {
-        header += (":" + operatedBlobCount);
-      }
-      header += (":" + httpOperation.getTracingContextSuffix());
-      metricHeader += !(metricResults.trim().isEmpty()) ? metricResults  : "";
+    case ALL_ID_FORMAT:
+      header = TracingHeaderVersion.V1.getVersion() + COLON
+          + clientCorrelationID + COLON
+          + clientRequestId + COLON
+          + fileSystemID + COLON
+          + getPrimaryRequestIdForHeader(retryCount > 0) + COLON
+          + streamID + COLON
+          + opType + COLON
+          + getRetryHeader(previousFailure, retryPolicyAbbreviation) + COLON
+          + ingressHandler + COLON
+          + position + COLON
+          + operatedBlobCount + COLON
+          + httpOperation.getTracingContextSuffix() + COLON
+          + getOperationSpecificHeader(opType);
+
+      metricHeader += !(metricResults.trim().isEmpty()) ? metricResults  : 
EMPTY_STRING;
       break;
     case TWO_ID_FORMAT:
-      header = clientCorrelationID + ":" + clientRequestId;
-      metricHeader += !(metricResults.trim().isEmpty()) ? metricResults  : "";
+      header = TracingHeaderVersion.V1.getVersion() + COLON

Review Comment:
   same as above getCurrentVersion ?



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