Re: upcoming changes to TTLs.

From: Tai Jin <>
Date: Mon, 28 Oct 1996 09:40:05 -0800

> There will be a performance reduction due to the
> latency time on the IMS check with the source.
> But it ensure that there will not be a stale object.

How about an asynchronous IMS? That is, the IMS is sent to the server
while returning the object from the cache (assuming it is still
fresh). And this can be done within, say, 20% of the object becoming
stale. If the object is already stale, then you have to wait for the
IMS. So you don't have to wait for the IMS unless the object is

Received on Mon Oct 28 1996 - 09:40:09 MST

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