Chetan Mehrotra commented on OAK-4815:

We should also look into decoupling the QueryEngineSettings from MBean aspect. 
This causes issue for me in 
 as Google App Engine env does not allow access to jmx api

> ReferenceIndex slowdown due to OAK-3403
> ---------------------------------------
>                 Key: OAK-4815
>                 URL: https://issues.apache.org/jira/browse/OAK-4815
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: query
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>             Fix For: 1.5.11
> In OAK-3403, a lookup using the ReferenceIndex now uses "new FilterImpl()", 
> which in turn uses "new QueryEngineSettings()". And this is slow, because it 
> is an AnnotatedStandardMBean, and instantiating such an object is quite slow. 
> (Actually it is also wrong, because the configured query engine settings are 
> not used in that case.)

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