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Ran 02 Nov 2017 06:27PM UTC

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Committed 02 Nov 2017 06:16PM UTC coverage: 72.815% (+0.1%) from 72.681%

Job # TOX_ENV=py27-cdh-airflow_backend_mysql

Build Type

push

travis-ci

Committed by Bolke de Bruin

Commit Message

[AIRFLOW-387] Close SQLAlchemy sessions properly

This commit adopts the `provide_session` helper in
almost the entire
codebase. This ensures session are handled and
closed consistently.
In particular, this ensures we don't forget to
close and thus leak
database connections.

As an additional change, the `provide_session`
helper has been extended
to also rollback and close created connections
under error conditions.

As an additional helper, this commit also
introduces a contextmanager
that provides the same functionality as the
`provide_session`
decorator. This is helpful in cases where the
scope of a session should
be smaller than the entire method where it is
being used.

Closes #2739 from StephanErb/session_close

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