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https://issues.apache.org/jira/browse/FELIX-1913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12794034#action_12794034
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Carsten Ziegeler commented on FELIX-1913:
-----------------------------------------

Yes, more or less :) Each event handler is sent the event with a new thread. If 
you have two event handlers for a given event, the second handler is called 
either when the first one returns (within the timeout) or as soon as the 
timeout occurs. In this case the first handler is immediately blacklisted - so 
a handler is blacklisted as soon as the timeout is reached and other handlers 
get called immediately.

> All events are processed in a queue
> -----------------------------------
>
>                 Key: FELIX-1913
>                 URL: https://issues.apache.org/jira/browse/FELIX-1913
>             Project: Felix
>          Issue Type: Improvement
>          Components: Event Admin
>    Affects Versions: eventadmin 1.0.0
>            Reporter: Carsten Ziegeler
>            Assignee: Karl Pauls
>            Priority: Minor
>         Attachments: ea.patch, ea2.patch, 
> org.apache.felix.eventadmin-1.0.1-SNAPSHOT.jar
>
>
> The current event admin implementation puts all events into a  queue and 
> processes this queue in one thread. This creates a bottleneck when different 
> threads send events as they have to wait for other threads to be processed 
> first. Events from different threads can be processed in parallel.
> In the async mode, event deliver might take a long time as these events are 
> processed one after the other as well.

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