if you close all connections (i.e. return them all to the pool), and
then go to get them again, it can handle a restart *if* the dialect
knows how to detect the conditions whereby it should invalidate() the
connections. which is generally pretty spotty, i dont think PG knows
how to do it. also i dont understand the error condition you are
getting, the connections should all be getting returned above ( or some
exception would be thrown).
are you stopping the DB while the first fetchall() is executing ? or
in between ?
On Jan 25, 3:54 pm, "Jonathan Ellis" <[EMAIL PROTECTED]> wrote:
> from sqlalchemy import *
> e = create_engine('postgres://...', pool_size=1, max_overflow=0,
> pool_timeout=None)
> e.execute('select 1').fetchall()
> # restart db
> e.execute('select 1').fetchall()
> # error gets raised, ConnectionRecord apparently doesn't get returned
> to pool because:
> e.execute('select 1').fetchall()
> # hangs, pool overflow=1 (so new CR is not created) but nothing is in the
> queue
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