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https://issues.apache.org/jira/browse/OAK-6807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16218735#comment-16218735
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Thomas Mueller commented on OAK-6807:
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[~chetanm] could you do a short review?
> Query Recorder
> --------------
>
> Key: OAK-6807
> URL: https://issues.apache.org/jira/browse/OAK-6807
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: query
> Reporter: Thomas Mueller
> Assignee: Thomas Mueller
> Fix For: 1.8
>
>
> In order to manage indexes (e.g. find out which indexes are no longer needed,
> which properties don't need to be indexed any longer), we have an easy way to
> log all executed queries / query plans.
> Each entry only needs to be logged once (logging multiple times is OK, but
> ensure it's not logged to often). Different log levels can be used (e.g. log
> level "TRACE" logs more data, "DEBUG" less). For "DEBUG" level, overhead of
> logging should be minimal, so this can be kept enabled for a long time.
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