Re: Postgres hangs during VACUUM (autocommit = false)

From: "Mark Coffman \(Epilogue Programmer\)" <mark(at)epilogue(dot)net>
To: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: <pgsql-general(at)postgresql(dot)org>
Subject: Re: Postgres hangs during VACUUM (autocommit = false)
Date: 2001-08-21 22:53:54
Message-ID: 00ee01c12a94$2978e600$e5671a18@moniker
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Thanks for the reply. I use Perl and DBI to make my database conneciton.
In the

BEGIN {}
part of the module, I check for the persistant connection, and make one if
none is present, autocommit off
in the
END {}
block, I do a $dbh->commit();

They all still have idle in transaction
:(

----- Original Message -----
From: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Mark Coffman" <mark(at)epilogue(dot)net>
Cc: <pgsql-general(at)postgresql(dot)org>
Sent: Tuesday, August 21, 2001 6:28 PM
Subject: Re: [GENERAL] Postgres hangs during VACUUM (autocommit = false)

> "Mark Coffman" <mark(at)epilogue(dot)net> writes:
> > is there any way for me to schedule a VACUUM
> > that won't hang?
>
> Fix your client-side code to not sit idle forever with uncommitted
> transactions. That's a bad practice independently of whether it
> gives VACUUM problems. The clients presumably think that whatever
> they've done so far is committed ... but guess what, it's not.
>
> > I cannot autocommit because I need transactions.
>
> Fine, but that means that you have the responsibility to commit.
> Evidently you're not doing so.
>
> FWIW, 7.2's default VACUUM will be more forgiving, but that doesn't
> make your clients' behavior a good idea.
>
> regards, tom lane
>

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