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https://issues.apache.org/jira/browse/GOBBLIN-2121?focusedWorklogId=928574&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-928574
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ASF GitHub Bot logged work on GOBBLIN-2121:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 02/Aug/24 20:07
            Start Date: 02/Aug/24 20:07
    Worklog Time Spent: 10m 
      Work Description: phet commented on code in PR #4012:
URL: https://github.com/apache/gobblin/pull/4012#discussion_r1702273840


##########
gobblin-service/src/main/java/org/apache/gobblin/service/modules/orchestration/DagProcessingEngine.java:
##########
@@ -140,6 +153,11 @@ public void run() {
           dagTask.conclude();
         } catch (Exception e) {
           log.error("DagProcEngineThread encountered exception while 
processing dag " + dagProc.getDagId(), e);
+          if (KafkaJobStatusMonitor.isThrowableInstanceOf(e, 
this.nonRetryableExceptions)) {
+            // conclude the lease so that it is not retried, if the dag proc 
fails with non-transient exception
+            dagTask.conclude();
+            
dagManagementStateStore.getDagManagerMetrics().dagProcessingNonRetryableExceptionMeter.mark();

Review Comment:
   good point.  really I'm just seeking better encapsulation within `DagProc`, 
so the DPE remains blissfully unaware of what they're doing and hence what 
exceptions they might throw.
   
   most ideal might be each `DagProc` class to know which of its exceptions are 
transient.  e.g. a base class method `boolean isTransientException(Throwable 
t)`, with a common base class version and any derived class extending beyond 
that (while delegating to the base class impl as a fallback).
   
   if for expedience, you want a small step in the right direction that would 
be for the factory to be initialized w/ a predicate as I suggested - given it's 
the one who decides which specific `DagProc` derived class impls to use.
   
   but after considering further, I really think 
`DagProc::isTransientException` is preferable.
   
   





Issue Time Tracking
-------------------

    Worklog Id:     (was: 928574)
    Time Spent: 3h  (was: 2h 50m)

>  redirect kill requests to dag proc engine
> ------------------------------------------
>
>                 Key: GOBBLIN-2121
>                 URL: https://issues.apache.org/jira/browse/GOBBLIN-2121
>             Project: Apache Gobblin
>          Issue Type: Improvement
>            Reporter: Arjun Singh Bora
>            Priority: Major
>          Time Spent: 3h
>  Remaining Estimate: 0h
>




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