[jira] [Commented] (OAK-4726) Add Metrics coverage to the Lucene Indexer

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

    [ https://issues.apache.org/jira/browse/OAK-4726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15694802#comment-15694802 ] 

Chetan Mehrotra commented on OAK-4726:
--------------------------------------

Not yet looked at patch completely but I would like to change the Metric name to be much shorter. Something like "lucene-<index path>-<attribute>"

> Add Metrics coverage to the Lucene Indexer
> ------------------------------------------
>
>                 Key: OAK-4726
>                 URL: https://issues.apache.org/jira/browse/OAK-4726
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: lucene
>    Affects Versions: 1.5.8
>            Reporter: Ian Boston
>            Assignee: Chetan Mehrotra
>             Fix For: 1.6, 1.5.17
>
>         Attachments: OAK-4726.patch
>
>
> Although there are some stats surrounding the Lucene indexing processes it would be useful to have metrics style stats available. 
> Looking at the code, the implementations IndexWriter look like the right place to add the metrics. These could be global aggregate metrics, ie one set of metrics covering all IndexWriter implementations, or there could be individual metrics for each Lucene index definition. The latter would be more useful as it will allow detailed stats on individual metrics. 
> These metrics will only give information on the writer operations, and not any Tokenizing operations. 
> Patch in the form of a pull request will flow.



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