8ddf883d2e
Summary: Ref T4276. When a change is larger than 2GB, PHP can not read the entire change into a string, so Herald can not process it. Additionally, we already have a time limit for practical reasons, but it's huge (probably incorrectly). To deal with these things: - Add an optional byte limit to `diffusion.rawdiffquery`. - Make the query with a 1GB limit. - Reduce the diff timeout from 15 hours to 15 minutes. - Add a "Changeset is enormous" field. This field is true for changes which are too large to process. This generally makes behaviors more sane: - We'll always make progress in Herald in a reasonable amount of time. - Installs can write global rules to handle (or reject) these types of changes. Test Plan: Set limit to 25 bytes instead of 1GB and ran test console on various changes. Reviewers: btrahan Reviewed By: btrahan CC: aran Maniphest Tasks: T4276 Differential Revision: https://secure.phabricator.com/D7885
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