Summary: See D133. Workers can also be subject to the same race, invert the
row relationship in the same way.
Test Plan: Launched repository master daemons and some taskmasters and used
the Daemon console to veify that they were able to process tasks. Manually
checked the database to make sure data got linked correctly and that new data
was inserted correctly.
Reviewers: jungejason
CC: tuomaspelkonen
Differential Revision: 135
Summary: While I should fix the transactional stuff, that patch is going to be
tricky and transactions have some performance implications. This is a simple
fix which prevents the race.
Instead of having the data point at the event ID, have the event point at a
data ID. Insert the data first, then insert the event with the right data
pointer. This is super simple and prevents the race issue.
Test Plan:
- Ran the schema upgrade script, verified that the database was
correctly upgraded. Was also prompted to stop daemons.
- Ran 'repository-launch-master', verified that the discovery daemons were
able to discover new commits and insert events for them. Verified the
committask daemon was consuming events and converting them into tasks.
- Verified new tasks looked correct in the database.
- Browsed web interface.
Reviewers: jungejason
CC: tuomaspelkonen
Differential Revision: 133
