From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (ext-mx03.extmail.prod.ext.phx2.redhat.com [10.5.110.27]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 3A2CD6091D for ; Thu, 17 May 2018 00:08:33 +0000 (UTC) Received: from mail-it0-f49.google.com (mail-it0-f49.google.com [209.85.214.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 48EC735C83B for ; Thu, 17 May 2018 00:08:22 +0000 (UTC) Received: by mail-it0-f49.google.com with SMTP id j186-v6so6665068ita.5 for ; Wed, 16 May 2018 17:08:22 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: From: Patrick Mitchell Date: Wed, 16 May 2018 20:08:20 -0400 Message-ID: Subject: Re: [linux-lvm] pvscan takes 45-90 minutes booting off ISO with thin pools 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: linux-lvm@redhat.com On Wed, May 16, 2018 at 8:03 PM, Patrick Mitchell wrote: > Changing the ISO's lvm.conf, setting "activation = 0" in global makes > it boot very quickly. I can then manually run a single "pvscan > --cache --activate ay" to activat everything, and it just takes a few > seconds. So, I'm thinking this has to be a locking problem with > trying to activate so many logical volumes and thin pools > simultaneously. (Manually running pvscan after modifying lvm.conf to set activation back to 1.)