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Posted to issues@trafficserver.apache.org by "James Peach (JIRA)" <ji...@apache.org> on 2015/05/05 05:47:06 UTC

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

James Peach created TS-3580:
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             Summary: 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


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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