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https://issues.apache.org/jira/browse/GEODE-8656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17221718#comment-17221718
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ASF GitHub Bot commented on GEODE-8656:
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albertogpz commented on pull request #5670:
URL: https://github.com/apache/geode/pull/5670#issuecomment-717506887
> @albertogpz, hostname-for-senders is a string value which represents the
hostname that is given to the senders. This means, that if you start 2 (or more
servers) on the same machine they can have the same value. Could you create two
servers with a gateway receiver each, with the same hostname-for-server value
and see if this solves the problem.
>
> If not, we have to seriously put our heads together and try and come up
with a solution to the problem. As I'd prefer a test to be in place that
reproduce the issue and then of course fix it. Might even mean that we might
have to create a whole new framework to test these kind of issues.
@kohlmu-pivotal, the receivers part is easy, we can create two senders with
the same hostname-for-senders value as you suggest.
The difficult part is the sending side. The gateway senders would use the
value of hostname-for-senders to connect to the receivers but we should have
"something" (the load balancer in the real world) that should intercept the
connect call to the hostname-for-senders address so that the connection is
finally made against the ip addresses to which the receivers binded.
I do not know if we can tweak in the test case the part of the creation of
the connection in the gateway sender so that when a connection to an endpoint
is created, the IP address to be used is changed to one of the IP addresses on
which the receivers are listening.
I will try to check if this is possible.
Any ideas are welcome.
Thanks!
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> Ping not sent to the right gateway receiver endpoint when several receivers
> have the same hostname-for-senders value
> --------------------------------------------------------------------------------------------------------------------
>
> Key: GEODE-8656
> URL: https://issues.apache.org/jira/browse/GEODE-8656
> Project: Geode
> Issue Type: Bug
> Components: wan
> Reporter: Alberto Gomez
> Assignee: Alberto Gomez
> Priority: Major
> Labels: pull-request-available
>
> When several gateway receivers have the same value for hostname-for-senders
> (for example when running Geode under kubernetes and a load balancer balances
> the load among the remote servers), the ping messages sent from the gateway
> sender client are only sent to the receiver (endpoint) to which the sender
> connected first.
> The other receivers will not get the ping message which will imply that the
> connections towards them will be closed after the configured timeout expires.
> This ticket is a continuation of the work done ticket GEODE-7565.
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