From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (ext-mx04.extmail.prod.ext.phx2.redhat.com [10.5.110.8]) by int-mx05.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id nA3Eoj68028538 for ; Tue, 3 Nov 2009 09:50:45 -0500 Received: from mail.bmsi.com (www.bmsi.com [24.248.44.156]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id nA3EoSRp025904 for ; Tue, 3 Nov 2009 09:50:29 -0500 Received: from bmsred.bmsi.com (bmsred.bmsi.com [192.168.9.50]) by mail.bmsi.com (8.14.3/8.14.3) with ESMTP id nA3EoPJK019776 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 3 Nov 2009 09:50:26 -0500 Received: from localhost (localhost.localdomain [127.0.0.1]) by bmsred.bmsi.com (8.14.3/8.14.3) with ESMTP id nA3EoPfQ029351 for ; Tue, 3 Nov 2009 09:50:25 -0500 Date: Tue, 3 Nov 2009 09:50:25 -0500 (EST) From: "Stuart D. Gathman" Subject: Re: [linux-lvm] Re: error creating snapshots In-Reply-To: <20091103141626.GA15344@redhat.com> Message-ID: References: <20091103141626.GA15344@redhat.com> MIME-Version: 1.0 Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: TEXT/PLAIN; charset="us-ascii" Content-Transfer-Encoding: 7bit To: LVM general discussion and development On Tue, 3 Nov 2009, Mike Snitzer wrote: > Stuart D. Gathman wrote: > > > Is this a harmless error having to do with some misreported option to > > notify a user process when the snapshot is almost full? Or should I switch > > backups over > This is harmless but it does mean that dmeventd-based snapshot > usage monitoring is not currently enabled for this snapshot. > > But if you restart dmeventd (kill the process and it'll restart next > time you activate the snapshot) it should work. Looks like "service lvm2-monitor restart" should do this. Maybe the update should restart this service? > I'll have a look at how best to cope with this within lvm2 (either > rpm upgrade triggers or...). But out of curiosity: had you upgraded > lvm2 (lvm2-libs et al) prior to creating the snapshot and dmeventd was > running prior to the upgrade? Yes. Have not yet rebooted after the update. Strangely, this doesn't seem to happen on 32-bit systems at the same update level with the same update sequence. The dmeventd was not restarted with the lvm2 update. There is some logic in lvm2-monitor about when stopping dmeventd is dangerous, but it doesn't seem to think a restart is dangerous. -- Stuart D. Gathman Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154 "Confutatis maledictis, flammis acribus addictis" - background song for a Microsoft sponsored "Where do you want to go from here?" commercial.