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From Stephan Ewen <se...@apache.org>
Subject Re: Error trying to access JM through proxy
Date Mon, 05 Oct 2015 10:34:59 GMT
I think this is yet another problem caused by Akka's overly strict message
routing.

An actor system bound to a certain URL can only receive messages that are
sent to that exact URL. All other messages are dropped.

This has many problems:

  - 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)

Since this is inherent in Akka, I am puzzled what we can do about that.
Just googled a bit, seems other systems that use Akka (like Spark) have
stumbled across that issue as well...

A good point to ask would be the akka mailing list. I can did into this
after the next release (2 weeks or so), if you want to help us speed this
up, you could ping the Akka mailing list as well.

Greetings,
Stephan




On Sun, Oct 4, 2015 at 7:21 AM, Henry Saputra <henry.saputra@gmail.com>
wrote:

> Hi Emmanuel,
>
> Could you tell a bit how the proxy being setup?
>
> - Henry
>
> On Fri, Oct 2, 2015 at 1:55 PM, Emmanuel <eleroy@msn.com> wrote:
> > When trying to access the JM through a proxy I get:
> >
> >
> > 19:26:23,113 ERROR akka.remote.EndpointWriter
> > - dropping message [class akka.actor.ActorSelectionMessage] for non-local
> > recipient [Actor[akka.tcp://flink@10.155.241.168:6123/]] arriving at
> > [akka.tcp://flink@10.155.241.168:6123] inbound addresses are
> > [akka.tcp://flink@10.152.1.107:6123]
> >
> > Is there a way to allow this look up through a proxy?
> >
> > Thanks
> >
> >
>

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