[jira] [Updated] (SOLR-5637) Per-request cache statistics

["Shikhar Bhushan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-5637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shikhar Bhushan updated SOLR-5637:
----------------------------------

    Fix Version/s:     (was: 4.7)

> Per-request cache statistics
> ----------------------------
>
>                 Key: SOLR-5637
>                 URL: https://issues.apache.org/jira/browse/SOLR-5637
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Shikhar Bhushan
>            Priority: Minor
>         Attachments: SOLR-5367.patch, SOLR-5367.patch
>
>
> We have found it very useful to have information on the number of cache hits and misses for key Solr caches (filterCache, documentCache, etc.) at the request level.
> This is currently implemented in our codebase using custom {{SolrCache}} implementations.
> I am working on moving to maintaining stats in the {{SolrRequestInfo}} thread-local, and adding hooks in get() methods of SolrCache implementations. This will be glued up using the {{DebugComponent}} and can be requested using a "debug.cache" parameter.



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