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https://issues.apache.org/jira/browse/GEODE-7565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17102573#comment-17102573
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ASF subversion and git services commented on GEODE-7565:
--------------------------------------------------------
Commit be877883f3e123ba3c00af7d01464c2c80785522 in geode's branch
refs/heads/develop from Alberto Bustamante Reyes
[ https://gitbox.apache.org/repos/asf?p=geode.git;h=be87788 ]
GEODE-7565: Allow gateway receivers with same host and port (2nd try)
This reverts the revert of the original commit, adds extra tests and
also fixes the originally introduced issues.
----
There was a problem with Geode WAN replication when GW receivers are
configured with the same hostname-for-senders and port on all servers.
The reason for such a setup is deploying Geode cluster on a Kubernetes
cluster where all GW receivers are reachable from the outside world on
the same VIP and port.
The problem experienced is that shutting down one server is stopping
replication to this cluster until the server is up again. This is
because Geode incorrectly assumes there are no more alive servers when
just one of them is down, because since they share hostname-for-senders
and port, they are treated as one same server.
With these changes locator is able to distinguish the different
receivers using the same hostname and port so replication is not
impacted when one server is stopped.
> Wrong management of receivers with same hostname-for-senders
> ------------------------------------------------------------
>
> Key: GEODE-7565
> URL: https://issues.apache.org/jira/browse/GEODE-7565
> Project: Geode
> Issue Type: Improvement
> Components: wan
> Reporter: Alberto Bustamante Reyes
> Assignee: Alberto Bustamante Reyes
> Priority: Major
> Labels: pull
> Time Spent: 8h
> Remaining Estimate: 0h
>
> There is a problem with Geode WAN replication when GW receivers are
> configured with the same hostname-for-senders and port on all servers. [ 1 ]
> The problem experienced is that shutting down one server is stopping
> replication to this cluster until the server is up again. This is because
> Geode incorrectly assumes there are no more alive servers when just one of
> them is down, because since they share hostname-for-senders and port, they
> are treated as one same server.
> Our proposal consists on expanding internal data in locators with enough
> information to distinguish servers in the beforementioned use case. The same
> intervention is likely needed in the client pools and possibly elsewhere in
> the source code.
> ----
> [ 1 ] : The reason for such a setup is deploying Geode cluster on a
> Kubernetes cluster where all GW receivers are reachable from the outside
> world on the same VIP and port. Other kinds of configuration (different
> hostname and/or different port for each GW receiver) are not cheap from OAM
> and resources perspective in cloud native environments and also limit some
> important use-cases (like scaling).
>
> Link to thread in DEV mailing list:
> [https://markmail.org/thread/6qakx67rxiokdsec]
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