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https://issues.apache.org/jira/browse/DRILL-4586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15453618#comment-15453618
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ASF GitHub Bot commented on DRILL-4586:
---------------------------------------
Github user sudheeshkatkam commented on the issue:
https://github.com/apache/drill/pull/567
Per [Hakkim's
comment](https://github.com/apache/drill/pull/460/files#diff-158c887d198393117d3a1bbc42114a8bR344),
SYSTEM type is meant for unexpected errors that do not have a "nice" error
message yet. However in some error cases on the client side, there can be nice
error messages, as shown in these changes.
Regarding compatibility: the server should not produce CLIENT type user
exceptions, so old clients can talk to new servers; mentioned in the CLIENT
type description as _some error on the client side_.
> Create CLIENT ErrorType
> -----------------------
>
> Key: DRILL-4586
> URL: https://issues.apache.org/jira/browse/DRILL-4586
> Project: Apache Drill
> Issue Type: Improvement
> Reporter: Sudheesh Katkam
> Assignee: Parth Chandra
>
> To display client errors with nice messages, we use "system error". However
> system error which is not meant to be used when we want to display a proper
> error message. System errors are meant for unexpected errors that don't have
> a "nice" error message yet.
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