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From Greg Stein <>
Subject Re: New post-log-transaction hook?
Date Wed, 19 Sep 2001 17:25:46 GMT
On Wed, Sep 19, 2001 at 11:17:36AM -0500, William A. Rowe, Jr. wrote:
> From: "Ryan Bloom" <>
> Sent: Wednesday, September 19, 2001 9:52 AM
> > On Tuesday 18 September 2001 06:09 pm, Greg Stein wrote:
> > > I agree with OtherBill.
> > >
> > > Cleanups are not always the answer. When they are run, many things
> > > associated with that pool could be torn down already because their cleanups
> > > have already run.
> > 
> > Jon is already using a pool cleanup to solve this problem.  In fact, his
> > initial thought was to use a pool cleanup, but he couldn't register cleanups
> > from within a cleanup.  Adding a new hook was a second solution from Jon,
> > because he just needed to solve his problem.
> Note (for those not paying that close attention) just trying to open a file within
> a cleanup, do something, and close it will attempt to create a cleanup :(
> This bug still must be fixed.

It isn't a bug. Cleanups are for just wrapping things up, not doing work.
You might not even be able to open and use that file if your pool is in the
process of being destroyed.

Doing significant work at cleanup time, *especially* things which involve
that same pool, is flat out prone to bugs. The cleanups are not ordered
(they shouldn't be), and the fact they are running means that the pool's
usability is marginable. Note that the pool's subpools have already been

It isn't a bug.


Greg Stein,

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