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https://issues.apache.org/jira/browse/GOBBLIN-1154?focusedWorklogId=437582&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-437582
 ]

ASF GitHub Bot logged work on GOBBLIN-1154:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 27/May/20 04:10
            Start Date: 27/May/20 04:10
    Worklog Time Spent: 10m 
      Work Description: jack-moseley commented on a change in pull request 
#2993:
URL: https://github.com/apache/incubator-gobblin/pull/2993#discussion_r430694079



##########
File path: 
gobblin-restli/gobblin-flow-config-service/gobblin-flow-config-service-server/src/main/java/org/apache/gobblin/service/FlowConfigV2ResourceLocalHandler.java
##########
@@ -81,7 +83,7 @@ public CreateKVResponse createFlowConfig(FlowConfig 
flowConfig, boolean triggerL
     } else if 
(Boolean.parseBoolean(responseMap.getOrDefault(ServiceConfigKeys.COMPILATION_SUCCESSFUL,
 new AddSpecResponse<>("false")).getValue().toString())) {
       httpStatus = HttpStatus.S_201_CREATED;
     } else {
-      httpStatus = HttpStatus.S_400_BAD_REQUEST;
+      throw new RestLiServiceException(HttpStatus.S_400_BAD_REQUEST, "Flow was 
not compiled successfully");

Review comment:
       The reason could be a couple things:
   
   1. No path found. This could be due to: the edges don't have the paths they 
are using, there are no edges between those nodes, the nodes or edges were not 
added on gaas startup due to an error, etc.
   
   2. There is an unresolved config. We do have a field that stores whatever 
errors we encountered with unresolved config.
   
   The problems are:
   - If it fails due to 1, there isn't really any way to know exactly what went 
wrong since we don't know what the intended path was.
   - Even if it fails due to 1, we may have encountered some unresolved config 
on a separate unintended path. So it would be pretty confusing to include an 
error that some config was unresolved when the real reason was that the path.
   
   If anything maybe the best message for now would just be "This could be 
because no path is found, or because of X unresolved config"?




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

    Worklog Id:     (was: 437582)
    Time Spent: 2h 20m  (was: 2h 10m)

> Improve gaas error messages
> ---------------------------
>
>                 Key: GOBBLIN-1154
>                 URL: https://issues.apache.org/jira/browse/GOBBLIN-1154
>             Project: Apache Gobblin
>          Issue Type: Improvement
>            Reporter: Jack Moseley
>            Priority: Major
>          Time Spent: 2h 20m
>  Remaining Estimate: 0h
>




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