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https://issues.apache.org/jira/browse/HIVE-11501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michał Węgrzyn updated HIVE-11501:
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Attachment: HIVE-11501.patch
The patch fixes the issue by throwing only if the connection is closed or the
request tries to change the default, disabled read-only mode.
> HiveConnection.readOnly always throws a "Method not supported" exception
> ------------------------------------------------------------------------
>
> Key: HIVE-11501
> URL: https://issues.apache.org/jira/browse/HIVE-11501
> Project: Hive
> Issue Type: Bug
> Reporter: Michał Węgrzyn
> Assignee: Michał Węgrzyn
> Attachments: HIVE-11501.patch
>
>
> HiveConnection.setReadOnly's automatically generated implementation always
> throws a generic "Method not supported" exception and thus is not compliant
> with the JDBC spec. Per JDBC spec, an exception can be thrown only if the
> connection is closed, DB access error occurs or the method is called during a
> transaction (which is not a case for HiveConnection).
> JDBC spec does not say a word about not supporting the method by the driver.
> The most correct behavior could be to throw only if the request tries to
> enable the read-only mode (as HiveConnection.isReadOnly always returns false).
> This issue is a blocker for JDBC connection pools (i.e. HikariCP) that expect
> JDBC-compliant behavior from the driver.
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