wikimedia / restbase-mod-table-cassandra / 579

84%

Pull #133

travis-ci

Make background updates synchronous

With idempotent updates it is better to retry the put at a higher level if
necessary. Consumers can still choose to ignore failures, but now have a
chance to repeat requests in case any part of the request processing fails.

This change should provide better back-pressure in write overload situations
by slowing those requests down until the request is fully processed. As a
consequence, it should reduce the memory build-up in restbase when writes are
slow.

Additionaly, the patch also cleans up the condition for when background
updates are run.

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