Message 275181 - Python tracker

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In-reply-to
Author	zzzeek
Recipients	JohanAR, itamarst, rhettinger, sbt, tim.peters, zzzeek
Date	2016年09月08日.21:59:52
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1473371992.46.0.907450479715.issue14976@psf.upfronthosting.co.za>

Content
SQLAlchemy suffered from this issue long ago as we use a Queue for connections, which can be collected via weakref callback and sent back to put(), which we observed can occur via gc. For many years (like since 2007 or so) we've packaged a complete copy of Queue.Queue with an RLock inside of it to work around it. I'm just noticing this issue because I'm writing a new connection pool implementation that tries to deal with this issue a little differently (not using Queue.Queue though).

Content

SQLAlchemy suffered from this issue long ago as we use a Queue for connections, which can be collected via weakref callback and sent back to put(), which we observed can occur via gc. For many years (like since 2007 or so) we've packaged a complete copy of Queue.Queue with an RLock inside of it to work around it.
I'm just noticing this issue because I'm writing a new connection pool implementation that tries to deal with this issue a little differently (not using Queue.Queue though).

History
Date	User	Action	Args
2016年09月08日 21:59:52	zzzeek	set	recipients: + zzzeek, tim.peters, rhettinger, sbt, JohanAR, itamarst
2016年09月08日 21:59:52	zzzeek	set	messageid: <1473371992.46.0.907450479715.issue14976@psf.upfronthosting.co.za>
2016年09月08日 21:59:52	zzzeek	link	issue14976 messages
2016年09月08日 21:59:52	zzzeek	create

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