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https://issues.apache.org/jira/browse/HIVE-795?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bill Graham updated HIVE-795:
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Attachment: HIVE-795.1.patch
Attaching HIVE-795.1.patch, which included the changes discussed above. A few
things to note:
- Error messages and SQLStates are now included in {{HiveServerException}}.
Please review changes to this class carefully. The existing comment in that
class regarding how this file is auto-generated by thrift and not to edit it
unless you know what you're doing has me a bit concerned. :)
- Error messages from the {{Driver}} classes compile step are captured and
returned to the client, along with corresponding SQLStates. The exception
handling of the {{ql.parse}} package made it possible to return informative
error messages.
- Errors from the {{Driver}} classes execute step are another story. This code
relies on {{Task.executeTask()}}, which swallows exceptions and returns just
status codes. Refactoring this to return a composite could be a considerable
task, so this should be done as part of a separate JIRA IMO. The server still
returns error messages and SQLStates for execution errors though. It's just
that the error messages the server has as it's disposal could be improved.
- The {{HiveConnection}} constructor now throws {{SQLException}} instead of
{{Exception}}.
> Return better error messaging from HiveServer
> ----------------------------------------------
>
> Key: HIVE-795
> URL: https://issues.apache.org/jira/browse/HIVE-795
> Project: Hadoop Hive
> Issue Type: Improvement
> Components: Server Infrastructure
> Reporter: Bill Graham
> Assignee: Bill Graham
> Attachments: HIVE-795.1.patch
>
>
> If an exception is thrown on the Hive server (i.e., when an invalid query is
> passed), the Hive server throws a HiveServerExcpeption to the client with a
> message like "Query returned non-zero code: 10". A more informative
> description of the cause of the error should be returned.
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