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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2821) Change Akka configuration to allow accessing actors from different URLs
Date Thu, 15 Dec 2016 17:43:58 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15751990#comment-15751990
] 

ASF GitHub Bot commented on FLINK-2821:
---------------------------------------

Github user mxm commented on a diff in the pull request:

    https://github.com/apache/flink/pull/2917#discussion_r92661183
  
    --- Diff: flink-runtime/pom.xml ---
    @@ -193,8 +193,8 @@ under the License.
     		</dependency>
     
     		<dependency>
    -			<groupId>com.typesafe.akka</groupId>
    -			<artifactId>akka-testkit_${scala.binary.version}</artifactId>
    +			<groupId>com.data-artisans</groupId>
    +			<artifactId>flakka-testkit_${scala.binary.version}</artifactId>
    --- End diff --
    
    This probably needs to be changed independently of this PR.


> 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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