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https://issues.apache.org/jira/browse/OAK-1497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13931924#comment-13931924
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Michael Dürig commented on OAK-1497:
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Yes it will do that if configured to do so. Deployments need to take the
decision if the want that however. See e.g.
{{org.apache.jackrabbit.oak.jcr.osgi.RepositoryManager}}.
> JackrabbitEvent#isExternal() returns true for internal changes for slow
> listeners
> ---------------------------------------------------------------------------------
>
> Key: OAK-1497
> URL: https://issues.apache.org/jira/browse/OAK-1497
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: jcr
> Reporter: Michael Dürig
> Assignee: Michael Dürig
> Fix For: 0.19
>
>
> Oak degrades gracefully for observation listeners that can't keep up with the
> rate of observation events fired. See {{BackgroundObserver#contentChanged}}
> for the gory details.
> As a side effect {{JackrabbitEvent#isExternal}} will always return {{true}}
> when this degradation happens. However there is currently no way for clients
> to detect this and to thus know whether the result of
> {{JackrabbitEvent#isExternal}} is reliable or not.
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