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https://forge.continuent.org/jira/browse/SEQUOIA-918?page=comments#action_14601 
] 

xavier roques commented on SEQUOIA-918:
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Warning, very often the routers block the broad casted network packet.

> Driver pinger may break in configuration with multiple interfaces
> -----------------------------------------------------------------
>
>          Key: SEQUOIA-918
>          URL: https://forge.continuent.org/jira/browse/SEQUOIA-918
>      Project: Sequoia
>         Type: Bug

>   Components: JDBC Driver
>     Versions: Sequoia 2.10.4, Sequoia 3.0 beta3, Sequoia 2.10.5, Sequoia 
> 2.10.6, Sequoia 2.10.3
>     Reporter: Marc Herbert
>     Assignee: Gilles Rayrat

>
>
> The driver pinger currently identifies answering controllers by looking at 
> the source address of the pong answer packet. If the controller has multiple 
> network interfaces, it may return the "Pong" packet using an address unknown 
> to the driver, breaking the ping scheme.
> One fix would be to use UDP on _connected_ sockets. But connected sockets is 
> probably overkill and a resource waste.
> This seems to be a simpler fix: the driver sends a controller ID to the 
> controller, and the controller just returns it. (this controller ID can be 
> private to the driver)
> It should be possible to implement this in a backward compatible way.

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