[jira] [Updated] (GEODE-7069) WAN locator discovery needs to be improved

["Bruce Schuchardt (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GEODE-7069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bruce Schuchardt updated GEODE-7069:
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    Summary: WAN locator discovery needs to be improved  (was: WAN exchangeRemoteLocators "ping" loop seems useless)

> WAN locator discovery needs to be improved
> ------------------------------------------
>
>                 Key: GEODE-7069
>                 URL: https://issues.apache.org/jira/browse/GEODE-7069
>             Project: Geode
>          Issue Type: Bug
>          Components: locator, wan
>            Reporter: Bruce Schuchardt
>            Priority: Major
>
> After exchanging information about locators the WAN location discovery exchangeRemoteLocators method goes into a "ping" loop that doesn't do anything useful & should be removed.
> Neither the receiving end nor the sending end of the RemoteLocatorPingRequest/Response messages does anything useful.  You might also argue that the whole exchangeRemoteLocators step of locator discovery is useless since the exchangeLocalLocators step communicates with all known remote locators.
> WAN locator discovery seems to present itself as a "membership" system but has no coordinator or failure detection.  It might be useful to think about reimplementing this whole discovery mechanism as a "gossip" based service that times out entries unless they are refreshed periodically.  The exchangeRemoteLocators thread could then be made to perform that refresh.
> The WAN location service should also be modified to register the messages it handles with TcpServer and it should be registered as a TcpHandler.  The odd LocatorMembershipListenerImpl.handleRequest() method can then be removed from PrimaryHandler's processRequest() method.  Special handling of this class in auto-reconnect and shutdown code could then also be removed.



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