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Posted to oak-issues@jackrabbit.apache.org by "Chetan Mehrotra (JIRA)" <ji...@apache.org> on 2013/10/09 13:01:49 UTC

[jira] [Created] (OAK-1084) Allow blacklisting of rogue observation list

Chetan Mehrotra created OAK-1084:
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             Summary: Allow blacklisting of rogue observation list
                 Key: OAK-1084
                 URL: https://issues.apache.org/jira/browse/OAK-1084
             Project: Jackrabbit Oak
          Issue Type: Wish
          Components: jcr
            Reporter: Chetan Mehrotra
            Priority: Minor


Currently Oak dispatches the observation events through a single thread. As best practice its recommended that ObservationListener should not block the main event thread and instead process the event asynchronously in separate thread.

However it can happen that some rogue implementation does not adhere to this best practice and blocks the main event thread. It would be helpful to have some support in Oak 

# To identify such listeners which take more time then a defined interval
#  Blacklist such listeners from further event processing and log a warning about the same

This feature would be similar to one supported by Felix EventAdmin [1] where EventHandlers are blacklisted in case they timeout

[1] http://felix.apache.org/site/apache-felix-event-admin.html#ApacheFelixEventAdmin-Configuration



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