[FLINK-6608] Relax Kerberos login contexts parsing by trimming whitespaces in contexts list

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.3.0, 1.4.0
• Component/s: Configuration, Security
• Assignee: Tzu-Li (Gordon) Tai
• Reporter: Tzu-Li (Gordon) Tai
• Created: 17/May/17 07:08
• Updated: 19/May/17 06:46
• Resolved: 19/May/17 06:46

Description

The Kerberos login contexts list parsing right now isn't quite user-friendly.
The list must be provided as: security.kerberos.login.contexts: Client,KafkaClient, without any whitespace in between.

We can relax this to be more user-friendly by trimming any whitespaces in the list.

A user actually stumbled across this: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Problems-with-Kerberos-Kafka-connection-in-version-1-2-0-td12580.html#a12589

Issue Links

• links to: GitHub Pull Request #3928