Big Onsales

I have just been reminded - inevitably, by it happening - that there are some features we need to turn off in the system in order to handle the load of large on sale.

They are

  1. The “People who bought this also bought that” recommendations
  2. The “Limited Availability” warnings that are displayed when a show has nearly sold out.

Both of these features inevitably hit the database hard, which is fine for normal operations, but which causes problems when more than a couple of hundred people all show up on the home page at once.

If we get advance notice of a big on-sale, then we can disable them to ensure the smoothest possible operation.

Thanks, AC/DC

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