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Posted to issues@trafficserver.apache.org by "Bryan Call (JIRA)" <ji...@apache.org> on 2012/05/02 19:12:54 UTC

[jira] [Commented] (TS-1238) RAM cache hit rate unexpectedly low

    [ https://issues.apache.org/jira/browse/TS-1238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13266717#comment-13266717 ] 

Bryan Call commented on TS-1238:
--------------------------------

I will coordinate the testing of the patch, but it might take a couple days.  I will shoot for Friday right now looking at my schedule.

I had a feeling that it might have to do with the seen filter since it doesn't take effect until the cache is full.  It might be nice to have a configuration option on how many hits you need before it is promoted to ram cache.  On some workings sets having this configured to 1 might be better.
                
> RAM cache hit rate unexpectedly low
> -----------------------------------
>
>                 Key: TS-1238
>                 URL: https://issues.apache.org/jira/browse/TS-1238
>             Project: Traffic Server
>          Issue Type: Bug
>          Components: Cache
>    Affects Versions: 3.1.3
>            Reporter: John Plevyak
>            Assignee: John Plevyak
>             Fix For: 3.1.4
>
>         Attachments: TS-1238-jp-1.patch
>
>
> The RAM cache is not getting the expected hit rate.  Looks like there are a couple issues.

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