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https://issues.apache.org/jira/browse/FLINK-2821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15751592#comment-15751592
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ASF GitHub Bot commented on FLINK-2821:
---------------------------------------
Github user StephanEwen commented on a diff in the pull request:
https://github.com/apache/flink/pull/2917#discussion_r92625848
--- Diff:
flink-runtime/src/main/scala/org/apache/flink/runtime/akka/AkkaUtils.scala ---
@@ -216,12 +219,19 @@ object AkkaUtils {
* identified by hostname.
*
* @param configuration instance containing the user provided
configuration values
- * @param hostname of the network interface to listen on
+ * @param hostname of the network interface to bind on
* @param port to bind to or if 0 then Akka picks a free port
automatically
+ * @param externalHostname The host name to expect for Akka messages
+ * @param externalPort The port to expect for Akka messages
* @return Flink's Akka configuration for remote actor systems
*/
private def getRemoteAkkaConfig(configuration: Configuration,
- hostname: String, port: Int): Config = {
+ hostname: String, port: Int,
--- End diff --
Would be good to call `hostname` here `bind address`.
> Change Akka configuration to allow accessing actors from different URLs
> -----------------------------------------------------------------------
>
> Key: FLINK-2821
> URL: https://issues.apache.org/jira/browse/FLINK-2821
> Project: Flink
> Issue Type: Bug
> Components: Distributed Coordination
> Reporter: Robert Metzger
> Assignee: Maximilian Michels
>
> 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.
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