prashantwason commented on a change in pull request #3129:
URL: https://github.com/apache/hudi/pull/3129#discussion_r664770117



##########
File path: 
hudi-utilities/src/main/java/org/apache/hudi/utilities/deltastreamer/DeltaSync.java
##########
@@ -289,6 +289,8 @@ public void refreshTimeline() throws IOException {
           srcRecordsWithCkpt.getRight().getLeft(), metrics, 
overallTimerContext);
     }
 
+    metrics.updateDeltaStreamerSyncMetrics(System.currentTimeMillis());

Review comment:
       If something fails an exception should be raised from this function and 
the metrics.updateDeltaStreamerSyncMetrics(...) function wont be called.
   1. If the sync runs but fails due to exception - no metric would be 
published.
   2. If the sync runs but there is no data to sync - metric will be published. 
   
   If lastSync is not updating then the process failed with an exception.




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