[jira] [Commented] (OAK-4144) Expose PropertyIndex stats

["Chetan Mehrotra (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OAK-4144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15208126#comment-15208126 ] 

Chetan Mehrotra commented on OAK-4144:
--------------------------------------

[~tmueller] [~alex.parvulescu] [~catholicon] Thoughts? I think that having {{includedPaths}} defined in all property index would be beneficial and we can easily determine the paths by using a breadth first kind of traversal upto 3 level in index data

> Expose PropertyIndex stats 
> ---------------------------
>
>                 Key: OAK-4144
>                 URL: https://issues.apache.org/jira/browse/OAK-4144
>             Project: Jackrabbit Oak
>          Issue Type: New Feature
>          Components: query
>            Reporter: Chetan Mehrotra
>            Assignee: Chetan Mehrotra
>             Fix For: 1.6
>
>
> It would be good to have some stats exposed around property index specially for those based on ContentMirrorStoreStrategy
> The index structure is like
> {noformat}
> oak:index
>   + status
>     + :index
>       + PASS
>         + etc
>           + workflow
>             + instance
>               + a
>                 - match = true
>       + FAIL
>         + etc
>           + workflow
>             + instance
>               + b
>                 - match = true
> {noformat}
> # List of values being indexed - Like _FAIL_, _PASS_ etc or count
> # Path of content being index - Say path upto 3 levels where given property exists. For above case it would be _/etc/workflow/instance_
> #2 can be used to come up with right values for {{includedPaths}} OAK-3263. Having includedPath has benefits in terms of
> # Faster reindexing times
> # Make commits faster - Each property index currently contributes one {{IndexEditor}} and this editor would participate in *each* commit. If number of property indexes are high then it would lead to slow down in commit rates (OAK-1273). So having {{includedPath}} would allow reduction in number of editors that participate in a commit



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