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https://issues.apache.org/jira/browse/ACE-47?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12762911#action_12762911
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Marcel Offermans commented on ACE-47:
-------------------------------------

My main point is that the gateway can just as well decide not to poll at any 
regular interval. A couple of examples:
1) gateways that are running critical software, might not poll unless they are 
"idle" (I usually recommend looking at some kind of global state diagram for 
such applications and determine from that what would be good moments to poll)
2) gateways that are not always on-line
3) gateways that are not always on

If you want to *control* the fact that the gateway uses polling and that it 
polls at regular intervals set by the server, you should probably make the 
server send configuration data (through configuration admin, using the xml 
format specified in the OSGi spec) to the gateway. That way you know beforehand 
when intervals are going to change.

On the other hand, I could also live with a server (or even client/user 
specific) setting to "alarm me" if I have not seen a gateway for X amount of 
time.

> Presents of Gateways that have been gone not updated
> ----------------------------------------------------
>
>                 Key: ACE-47
>                 URL: https://issues.apache.org/jira/browse/ACE-47
>             Project: Ace
>          Issue Type: Bug
>            Reporter: Toni Menzel
>            Priority: Minor
>
> If a gateway goes away, webui insists of them being "OK". Have not checked if 
> its just a UI thing or the server not recognizing this.

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