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Coalesce requests to handle load spikes #10

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aaron42net opened this issue Mar 9, 2016 · 1 comment
Open

Coalesce requests to handle load spikes #10

aaron42net opened this issue Mar 9, 2016 · 1 comment

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@aaron42net
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Load spikes will often be for a few hot pages. Don't keep more than one copy of the same original image in RAM at once, and don't have more than one image thread working on generating the same thumbnail.

Use something like https://github.com/golang/groupcache/tree/master/singleflight to coalesce duplicate requests.
@aaron42net
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Now that we're passing through more request headers to support conditional GETs, can requests with different If-None-Match headers be coalesced?

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