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- Committer: MaaS Lander
- Date: 2014-04-01 17:33:24 UTC
- mfrom: (2208.4.5 rpc-create-table-race)
- Revision ID: maas_lander-20140401173324-6fx49valy79nggvd
[r=jtv][bug=1300363][author=allenap] Take an advisory lock to prevent concurrent creation of the eventloops table.
Creating tables in PostgreSQL is a transactional operation like any
other. If the isolation level is not sufficient - the default in Django
- it is susceptible to races. Using a higher isolation level may lead to
serialisation failures, for example. Advisory locking side-steps this.
Creating tables in PostgreSQL is a transactional operation like any
other. If the isolation level is not sufficient - the default in Django
- it is susceptible to races. Using a higher isolation level may lead to
serialisation failures, for example. Advisory locking side-steps this.
added
removed
src/maasserver/rpc/regionservice.py
