[jira] [Resolved] (VYSPER-292) Detecting unexpected network disconnects

["Bernd Fondermann (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/VYSPER-292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bernd Fondermann resolved VYSPER-292.
-------------------------------------

    Resolution: Won't Fix

We can't detect TCP/IP disconnects easily. Use Server-to-client Ping instead, if you really think it's a good idea.

> Detecting unexpected network disconnects
> ----------------------------------------
>
>                 Key: VYSPER-292
>                 URL: https://issues.apache.org/jira/browse/VYSPER-292
>             Project: VYSPER
>          Issue Type: Bug
>          Components: connection handshake
>            Reporter: Arun Prem
>
> This is similar to the one mentioned in the issue 286. Since there are no ways found to reopen the issue (which was already marked as 'Resolved'), I'm creating a new issue.
> As a solution for the issue reported in 286, it is suggested to add a shutdown hook. But it seems it won't address the cases of unexpected network disconnects as given in the following scenario.
> 1. User1 logs in. The status is set as 'Available' by default.
> ==> User1's status is reflected in the messenger window of other logged in users.
> 2. Disconnect User1's workstation from the network.
> ==> Other user's list disappears from User1 messenger window.
> 3. Check the status of User1 from the messenger window of other logged in users.
> ==> User1's status still remains in the same for all other users.
> Expected: User1's status should be made offline to other users as soon as the network disconnects.
> The questions is how to detect the unexpected network disconnects for User1 and broadcast the status (as offline) to other logged-in users.
> Thanks... 

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