gaborgsomogyi commented on a change in pull request #31384:
URL: https://github.com/apache/spark/pull/31384#discussion_r570266814
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File path: docs/sql-data-sources-jdbc.md
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@@ -213,6 +213,20 @@ the following case-insensitive options:
</tr>
</table>
+Note that kerberos authentication with keytab is not always supported by the
JDBC driver.<br>
+Before using <code>keytab</code> and <code>principal</code> configuration
options, please make sure the following requirements are met:
+* The included JDBC driver version supports kerberos authentication with
keytab.
+* There is a built-in connection provider which supports the used database.
+
+There is a built-in connection provider for the following databases:
Review comment:
Nice catch, fixed.
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