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| author | Stephen Finucane <stephenfin@redhat.com> | 2023-03-22 11:15:16 +0000 |
|---|---|---|
| committer | Stephen Finucane <stephenfin@redhat.com> | 2023-04-06 14:55:03 +0100 |
| commit | 64e50494f219b5c06ed79f947c91cdb7f37cb0d6 (patch) | |
| tree | 17d46fb0d71c19c209ffc84b6106792e3eb3e905 /oslo_db/sqlalchemy/compat | |
| parent | 1f003bcb0b74cecbfe24f52402328b76a07c9983 (diff) | |
| download | oslo-db-64e50494f219b5c06ed79f947c91cdb7f37cb0d6.tar.gz | |
Use SQLAlchemy native pre-ping
This functionality has been available upstream since SQLALchemy 1.2 [1].
However, for oslo.db to use this feature while maintaining full
behavior, we need at least SQLAlchemy 2.0.5 to provide complete event
support. In particular, oslo.db adds several new "is disconnect"
conditions including those specific to Galera.
Behavior of the handle_error event is modified to expect the "pre-ping"
calling form, which may not have an "engine" present (only a dialect),
and additionally takes advantage of the new is_pre_ping attribute which
informs on the correct way to affect the disconnection status within the
ping handler.
Change-Id: I50d862d3cbb126987a63209795352c6e801ed919
Diffstat (limited to 'oslo_db/sqlalchemy/compat')
| -rw-r--r-- | oslo_db/sqlalchemy/compat/__init__.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/oslo_db/sqlalchemy/compat/__init__.py b/oslo_db/sqlalchemy/compat/__init__.py index 6713696..d209207 100644 --- a/oslo_db/sqlalchemy/compat/__init__.py +++ b/oslo_db/sqlalchemy/compat/__init__.py @@ -18,6 +18,8 @@ from sqlalchemy import __version__ _vers = versionutils.convert_version_to_tuple(__version__) sqla_2 = _vers >= (2, ) +native_pre_ping_event_support = _vers >= (2, 0, 5) + def dialect_from_exception_context(ctx): if sqla_2: |