gaborgsomogyi commented on a change in pull request #28368:
URL: https://github.com/apache/spark/pull/28368#discussion_r421454577
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/connection/DB2ConnectionProvider.scala
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@@ -48,7 +48,7 @@ private[sql] class DB2ConnectionProvider(driver: Driver,
options: JDBCOptions)
result
}
- override def setAuthenticationConfigIfNeeded(): Unit = {
+ override def setAuthenticationConfigIfNeeded(): Unit =
SecurityConfigurationLock.synchronized {
Review comment:
I haven't added any reference because:
* This pattern in security is a standard
* This is a detail from user perspective. The important thing from that
perspective is that every previously configured entry is still visible,
untouched and the configured database credentials will be configured internally.
What I can imagine is a similar internal doc for developers like
[this](https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/deploy/security/README.md).
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