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https://issues.apache.org/jira/browse/OAK-2050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14133973#comment-14133973
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Thomas Mueller commented on OAK-2050:
-------------------------------------

Alex and me discussed this offline and came to the following conclusion: If no 
"real" full-text index is available, no results should be returned, and a 
warning is written to the log file saying that: either no full-text index is 
available, or the index is being re-built. That means the built-in full-text 
engine is disabled.



> Query engine: disable or restrict built-in full-text engine
> -----------------------------------------------------------
>
>                 Key: OAK-2050
>                 URL: https://issues.apache.org/jira/browse/OAK-2050
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: query
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>             Fix For: 1.1, 1.0.6
>
>         Attachments: ExternalBlobTest.java.patch
>
>
> There is a built-in full-text engine that is used for full-text queries if no 
> full-text index (Lucene, Solr) is available.
> This built-in engine tries to load binaries in memory, which can result in 
> out-of-memory.
> We either need a way to disable this built-in mechanism (in which case the 
> query engine would throw an exception for full-text queries), and / or change 
> the built-in mechanism so it doesn't result in out-of-memory.



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