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path: root/lib/sqlalchemy/pool/impl.py
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* Run search and replace of symbolic module namesMike Bayer2020-04-141-8/+9
| | | | | | | | Replaces a wide array of Sphinx-relative doc references with an abbreviated absolute form now supported by zzzeeksphinx. Change-Id: I94bffcc3f37885ffdde6238767224296339698a2
* happy new yearMike Bayer2020-01-011-1/+1
| | | | Change-Id: I08440dc25e40ea1ccea1778f6ee9e28a00808235
* Remove threadlocal engine strategy, engine strategies pool threadlocalMike Bayer2019-07-151-5/+2
| | | | | | | | | | | | The "threadlocal" execution strategy, deprecated in 1.3, has been removed for 1.4, as well as the concept of "engine strategies" and the ``Engine.contextual_connect`` method. The "strategy='mock'" keyword argument is still accepted for now with a deprecation warning; use :func:`.create_mock_engine` instead for this use case. Fixes: #4632 Change-Id: I8a351f9fa1f7dfa2a56eec1cd2d1a4b9d65765a2 (cherry picked from commit b368c49b44c5716d93c7428ab22b6761c6ca7cf5)
* Restore use_threadlocal equivalent behavior to SingletonThreadPoolMike Bayer2019-04-031-0/+21
| | | | | | | | | | | | | | | | | | Fixed behavioral regression as a result of deprecating the "use_threadlocal" flag for :class:`.Pool`, where the :class:`.SingletonThreadPool` no longer makes use of this option which causes the "rollback on return" logic to take place when the same :class:`.Engine` is used multiple times in the context of a transaction to connect or implicitly execute, thereby cancelling the transaction. While this is not the recommended way to work with engines and connections, it is nonetheless a confusing behavioral change as when using :class:`.SingletonThreadPool`, the transaction should stay open regardless of what else is done with the same engine in the same thread. The ``use_threadlocal`` flag remains deprecated however the :class:`.SingletonThreadPool` now implements its own version of the same logic. Fixes: #4585 Change-Id: I906293f2d0a5d14ed46cd9e64305a6481505a5a3
* Merge "Provide public accessor for Pool.timeout()."mike bayer2019-01-241-0/+3
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| * Provide public accessor for Pool.timeout().Irina Delamare2019-01-241-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Added public accessor :meth:`.Pool.timeout` that returns the configured timeout for a :class:`.Pool` object. Pull request courtesy Irina Delamare. Fixes: #3689 Closes: #4447 Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/4447 Pull-request-sha: 0179b0a829e9609429dc698992670d2e6749c10c Change-Id: I402b065cf9183160f71d9de73e308268356b7deb
* | Add deprecation warnings to all deprecated APIsMike Bayer2019-01-231-1/+0
|/ | | | | | | | | | | | | | | A large change throughout the library has ensured that all objects, parameters, and behaviors which have been noted as deprecated or legacy now emit ``DeprecationWarning`` warnings when invoked. As the Python 3 interpreter now defaults to displaying deprecation warnings, as well as that modern test suites based on tools like tox and pytest tend to display deprecation warnings, this change should make it easier to note what API features are obsolete. See the notes added to the changelog and migration notes for further details. Fixes: #4393 Change-Id: If0ea11a1fc24f9a8029352eeadfc49a7a54c0a1b
* Remove version directives for 0.6, 0.7, 0.8Mike Bayer2019-01-151-9/+0
| | | | | | | | | - fix a few "seealso"s - ComparableProprerty's "superseded in 0.7" becomes deprecated in 0.7 Backport to currently maintained doc versions 1.2, 1.1 Change-Id: Ib1fcb2df8673dbe5c4ffc47f3896a60d1dfcb4b2
* happy new yearMike Bayer2019-01-111-1/+1
| | | | Change-Id: I6a71f4924d046cf306961c58dffccf21e9c03911
* Post black reformattingMike Bayer2019-01-061-2/+3
| | | | | | | | | | | | | Applied on top of a pure run of black -l 79 in I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9, this set of changes resolves all remaining flake8 conditions for those codes we have enabled in setup.cfg. Included are resolutions for all remaining flake8 issues including shadowed builtins, long lines, import order, unused imports, duplicate imports, and docstring issues. Change-Id: I4f72d3ba1380dd601610ff80b8fb06a2aff8b0fe
* Run black -l 79 against all source filesMike Bayer2019-01-061-56/+86
| | | | | | | | | | | | | | This is a straight reformat run using black as is, with no edits applied at all. The black run will format code consistently, however in some cases that are prevalent in SQLAlchemy code it produces too-long lines. The too-long lines will be resolved in the following commit that will resolve all remaining flake8 issues including shadowed builtins, long lines, import order, unused imports, duplicate imports, and docstring issues. Change-Id: I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9
* Add LIFO for connection poolingTaem Park2018-09-181-2/+17
| | | | | | | | | | | | Added new "lifo" mode to :class:`.QueuePool`, typically enabled by setting the flag :paramref:`.create_engine.pool_use_lifo` to True. "lifo" mode means the same connection just checked in will be the first to be checked out again, allowing excess connections to be cleaned up from the server side during periods of the pool being only partially utilized. Pull request courtesy Taem Park. Change-Id: Idb5e299c5082b3e6b547bd03022acf65fdc34f35 Pull-request: https://github.com/zzzeek/sqlalchemy/pull/467
* Refactor pool.py into a packageMike Bayer2018-07-091-0/+419
for better separation of concerns split out the core pooling constructs from the implementations. also makes more room for new pool classes should we decide to add them. The DBProxy feature is never used so remove it from documentation and split it out. Change-Id: I04c9d7ae1882b17f3cf5c37ed05b781b05ef88fa Fixes: #4255
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