Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 24EA137B9D9 for ; Mon, 29 Sep 2008 11:00:49 -0300 (ADT) Received: from postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 52195-03 for ; Mon, 29 Sep 2008 11:00:34 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by postgresql.org (Postfix) with ESMTP id 0812437BD53 for ; Mon, 29 Sep 2008 11:00:33 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.2/8.14.2) with ESMTP id m8TE0KxG011365; Mon, 29 Sep 2008 10:00:20 -0400 (EDT) To: KKreuzer@kbtoys.com cc: pgsql-admin@postgresql.org Subject: Re: understand the process of ID wraparound In-reply-to: References: Comments: In-reply-to KKreuzer@kbtoys.com message dated "Mon, 29 Sep 2008 09:40:26 -0400" Date: Mon, 29 Sep 2008 10:00:19 -0400 Message-ID: <11364.1222696819@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0 tagged_above=0 required=5 tests=none X-Spam-Level: X-Archive-Number: 200809/335 X-Sequence-Number: 30428 KKreuzer@kbtoys.com writes: > I am hoping someone can help a novice understand the process of ID > wraparound, I have read many of the articles > on the web but don't understand why my age(datfrozenxid) never gets reset. > I am not sure if I even have a > problem, just trying to be proactive. You don't have a problem. The datfrozenxid values you are showing are around 31 million transactions. Nothing is going to happen until they exceed vacuum_freeze_min_age, which is 100 million transactions. regards, tom lane