In message <[email protected]>, Ricardo N
ewbery writes:
>> 1. Purge vs. Ban
>> -----------------
>
>Can you explain what is the effective difference between a real purge
>and a ban? Would both still kill all the Vary siblings? Other than
>possibly releasing the memory quicker, I'm not sure why I should
>care :-)
The sematics I would like to have:
expire:
Can be done to an object found as cache hit.
The object is marked as expired at this point in time, but
may still be eligble for grace service.
purge:
Can be done to an object found as cache hit.
The object is gone as of this moment, and will never be
seen again.
ban:
Put a ban on an object, which takes effect if it is subject
to a cache hit later on.
I would like expire & purge to have an option of also acting on all
other "Vary:" versions of an object.
I would also like a bans to have an option as to what they do to
banned objects: expire, purge (and option for taking all Varys.
expire & purge would only be available from VCL.
ban would be available from VCL or CLI.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
[email protected] | TCP/IP since RFC 956
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Never attribute to malice what can adequately be explained by incompetence.
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