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* Merge "Use context managers for threading.Lock()"mike bayer2020-01-031-20/+9
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| * Use context managers for threading.Lock()Heckad2020-01-031-20/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | (zzzeek:) For some reason I thought that threading.Lock() still did not support context managers, at least in Python 2, however this does not seem to be the case. Co-authored-by: Mike Bayer <mike_mp@zzzcomputing.com> Closes: #5069 Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/5069 Pull-request-sha: efeac06dda5afdbe33abcf9b27c8b5b5725c8444 Change-Id: Ic64fcd99cd587bc70b4ecc5b45d8205b5c76eff2
* | happy new yearMike Bayer2020-01-011-1/+1
|/ | | | Change-Id: I08440dc25e40ea1ccea1778f6ee9e28a00808235
* happy new yearMike Bayer2019-01-111-1/+1
| | | | Change-Id: I6a71f4924d046cf306961c58dffccf21e9c03911
* Post black reformattingMike Bayer2019-01-061-0/+1
| | | | | | | | | | | | | 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 Bayer2019-01-061-1/+1
| | | | | | | | | | | | | | 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/+11
| | | | | | | | | | | | 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
* happy new yearMike Bayer2018-01-121-1/+1
| | | | Change-Id: I3ef36bfd0cb0ba62b3123c8cf92370a43156cf8f
* update for 2017 copyrightMike Bayer2017-01-041-1/+1
| | | | Change-Id: I4e8c2aa8fe817bb2af8707410fa0201f938781de
* - happy new yearMike Bayer2016-01-291-1/+1
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* - copyright 2015Mike Bayer2015-03-101-1/+1
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* - apply pep8 formatting to sqlalchemy/sql, sqlalchemy/util, sqlalchemy/dialects,Brian Jarrett2014-07-201-1/+0
| | | | sqlalchemy/orm, sqlalchemy/event, sqlalchemy/testing
* - break up the <authors> copyright comment as part of a passMike Bayer2014-07-091-1/+2
| | | | to get all flake8 passing
* - A major improvement made to the mechanics by which the :class:`.Engine`Mike Bayer2014-03-221-39/+2
| | | | | | | | | | | | recycles the connection pool when a "disconnect" condition is detected; instead of discarding the pool and explicitly closing out connections, the pool is retained and a "generational" timestamp is updated to reflect the current time, thereby causing all existing connections to be recycled when they are next checked out. This greatly simplifies the recycle process, removes the need for "waking up" connect attempts waiting on the old pool and eliminates the race condition that many immediately-discarded "pool" objects could be created during the recycle operation. fixes #2985
* - happy new yearMike Bayer2014-01-051-1/+1
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* - Made a slight adjustment to the logic which waits for a pooledMike Bayer2013-12-061-2/+8
| | | | | | | | | | | connection to be available, such that for a connection pool with no timeout specified, it will every half a second break out of the wait to check for the so-called "abort" flag, which allows the waiter to break out in case the whole connection pool was dumped; normally the waiter should break out due to a notify_all() but it's possible this notify_all() is missed in very slim cases. This is an extension of logic first introduced in 0.8.0, and the issue has only been observed occasionally in stress tests.
* - Removed some now unneeded version checks [ticket:2829] courtesy alex gaynorMike Bayer2013-09-221-8/+1
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* happy new year (see #2645)Diana Clarke2013-01-011-1/+1
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* just a pep8 pass of lib/sqlalchemy/util/Diana Clarke2012-11-191-0/+3
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* more import cleanupsMike Bayer2012-08-071-1/+1
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* -whitespace bonanza, contdMike Bayer2012-07-281-1/+1
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* notify_all workaround for 2.5Mike Bayer2012-06-251-1/+10
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* - change notify to notify_all() so all waiters exit immediately,Mike Bayer2012-06-251-1/+1
| | | | continuing [ticket:2522]
* - [bug] Fixed bug wherebyMike Bayer2012-06-221-3/+37
| | | | | | | | | | | | a disconnect detect + dispose that occurs when the QueuePool has threads waiting for connections would leave those threads waiting for the duration of the timeout on the old pool. The fix now notifies those waiters with a special exception case and has them move onto the new pool. This fix may or may not be ported to 0.7. [ticket:2522]
* happy new yearMike Bayer2012-01-041-1/+1
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* - clean up copyright, update for 2011, stamp every file withMike Bayer2011-01-021-0/+6
| | | | | a consistent tag - AUTHORS file
* - move topological, queue into utilMike Bayer2010-12-051-0/+185
- move function_named into test.lib.util - use @decorator for all decorators in test/
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