[FLINK-2821] Change Akka configuration to allow accessing actors from different URLs

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.0
• Component/s: Runtime / Coordination
• Assignee: Maximilian Michels
• Reporter: Robert Metzger
• Created: 06/Oct/15 00:19
• Updated: 02/Oct/19 17:44
• Resolved: 16/Dec/16 17:04

Description

Akka expects the actor's URL to be exactly matching.

As pointed out here, cases where users were complaining about this: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Error-trying-to-access-JM-through-proxy-td3018.html

• Proxy routing (as described here, send to the proxy URL, receiver recognizes only original URL)
• Using hostname / IP interchangeably does not work (we solved this by always putting IP addresses into URLs, never hostnames)
• Binding to multiple interfaces (any local 0.0.0.0) does not work. Still no solution to that (but seems not too much of a restriction)

I am aware that this is not possible due to Akka, so it is actually not a Flink bug. But I think we should track the resolution of the issue here anyways because its affecting our user's satisfaction.

Issue Links

• links to: GitHub Pull Request #2917

Sub-Tasks

• Make Scala 2.11.x the default Scala version: Closed
• Bump Akka version to 2.4.x for Scala 2.11.x: Closed