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https://issues.apache.org/jira/browse/TS-3580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14588523#comment-14588523
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ASF subversion and git services commented on TS-3580:
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Commit 87bed9b390af30a6b6d4078adba885871e508a36 in trafficserver's branch
refs/heads/master from [~psudaemon]
[ https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;h=87bed9b ]
TS-3580: clang-format
> 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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