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3d70db9eb5
Summary: Fixes T12844. This code is misleading: the daemon insert is happening on a different connection, and is not inside the transaction on the Mail connection. What actually happens is this: - (Connection A) `BEGIN` - (Connection A) `INSERT INTO mail ...` - (Connection B) `INSERT INTO worker ...` <-- This is a different connection, and it is NOT in a transaction! - There's a race window here: the worker row is globally visible but the mail row is still isolated inside the transaction. - (Connection A) `COMMIT` - Now we're clear: the mail row is globally visible. Change this code to reflect what's actually happening. This means that if the worker row insert fails for some reason, we'll now throw with a mail row written to the database. But this is fine: it doesn't send on its own (so it can't cause mail loops or anything) and it can be re-queued with `bin/mail resend` if necessary without too much trouble. Test Plan: See T12844 for particulars. Made some comments on tasks, saw the daemons send mail. Reviewers: chad, amckinley, jmeador Reviewed By: jmeador Maniphest Tasks: T12844 Differential Revision: https://secure.phabricator.com/D18124 |
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| herald | ||
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| PhabricatorMetaMTAWorker.php | ||