[jira] [Issue Comment Deleted] (DRILL-7145) Exceptions happened during retrieving values from ValueVector are not being displayed at the Drill Web UI

["Arina Ielchiieva (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-7145?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arina Ielchiieva updated DRILL-7145:
------------------------------------
    Comment: was deleted

(was: aielchiieva commented on pull request #1727: DRILL-7145: Exceptions happened during retrieving values from ValueVe…
URL: https://github.com/apache/drill/pull/1727#discussion_r271257957
 
 

 ##########
 File path: exec/java-exec/src/main/java/org/apache/drill/exec/server/rest/WebUserConnection.java
 ##########
 @@ -151,7 +151,7 @@ public void sendData(RpcOutcomeListener<Ack> listener, QueryWritableBatch result
         loader.clear();
       }
     } catch (Exception e) {
-      exception = UserException.systemError(e).build(logger);
+      throw UserException.systemError(e).build(logger);
 
 Review comment:
   I don't think we should throw an exception here. We should stick to original approach and store it but just add method `getException()` in`AbstractDisposableUserClientConnection` class, similar to `getError()`. And then do proper handling of both.
 
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> Exceptions happened during retrieving values from ValueVector are not being displayed at the Drill Web UI
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: DRILL-7145
>                 URL: https://issues.apache.org/jira/browse/DRILL-7145
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 1.15.0
>            Reporter: Anton Gozhiy
>            Assignee: Anton Gozhiy
>            Priority: Major
>             Fix For: 1.16.0
>
>
> *Data:*
> A text file with the following content:
> {noformat}
> Id,col1,col2
> 1,aaa,bbb
> 2,ccc,ddd
> 3,eee
> 4,fff,ggg
> {noformat}
> Note that the record with id 3 has not value for the third column.
> exec.storage.enable_v3_text_reader should be false.
> *Submit the query from the Web UI:*
> {code:sql}
> select * from table(dfs.tmp.`/drill/text/test`(type=>'text',lineDelimiter=>'\n',fieldDelimiter=>',',extractHeader=>true))
> {code}
> *Expected result:*
> Exception should happen due to DRILL-4814. It should be properly displayed.
> *Actual result:*
> Incorrect data is returned but without error. Query status: success.



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