JacksonYao287 commented on a change in pull request #2371:
URL: https://github.com/apache/ozone/pull/2371#discussion_r658716156



##########
File path: 
hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/scm/ReconPipelineReportHandler.java
##########
@@ -63,8 +63,16 @@ protected void processPipelineReport(PipelineReport report,
     PipelineID pipelineID = PipelineID.getFromProtobuf(report.getPipelineID());
     if (!reconPipelineManager.containsPipeline(pipelineID)) {
       LOG.info("Unknown pipeline {}. Trying to get from SCM.", pipelineID);
-      Pipeline pipelineFromScm =
-          scmServiceProvider.getPipeline(report.getPipelineID());
+      Pipeline pipelineFromScm = null;
+
+      try {
+        pipelineFromScm =
+            scmServiceProvider.getPipeline(report.getPipelineID());
+      } catch (PipelineNotFoundException pnfe) {

Review comment:
       please see the log i mention [above 
](https://github.com/apache/ozone/pull/2371#discussion_r658695134), the server 
side throw a PipelineNotFoundException, so if i do not misunderstand, the 
client side will also get a PipelineNotFoundException. please correct me if i 
am wrong




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