[jira] [Commented] (TS-3580) cache generation ID configuration

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TS-3580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14548247#comment-14548247 ] 

ASF subversion and git services commented on TS-3580:
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Commit 4b60d644c6565d79eb6b3a77c04380e837a1b041 in trafficserver's branch refs/heads/master from [~jpeach@apache.org]
[ https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;h=4b60d64 ]

TS-3580: make CacheProcessor::open_read_internal a local static

This is another small step towwards allowing the Cache interface
to primarily in cache keys rather than URLs.


> cache generation ID configuration
> ---------------------------------
>
>                 Key: TS-3580
>                 URL: https://issues.apache.org/jira/browse/TS-3580
>             Project: Traffic Server
>          Issue Type: New Feature
>          Components: Cache, Configuration
>            Reporter: James Peach
>            Assignee: James Peach
>             Fix For: 6.0.0
>
>
> It's common to want to purge the cache online, or to purge specific tenants in a multi-tenant cache. One reasonably straight forward implementation of this is to allow operators to specify a cache generation ID (a 64 bit integer that is hashed into the cache key). This is a global overridable configuration, so you can set it globally or for a specific remap rule.
> Note that it is a bit of a sharp tool, since if you lose or cannot propagate the correct generation ID you will take a cache miss.



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