From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Kirkwood Subject: Re: problems creating new ceph cluster when using journal on block device Date: Thu, 08 Nov 2012 21:24:14 +1300 Message-ID: <509B6C2E.2050708@catalyst.net.nz> References: <509B6883.4010406@widodh.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from bertrand.catalyst.net.nz ([202.78.240.40]:37578 "EHLO mail.catalyst.net.nz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751337Ab2KHIYQ (ORCPT ); Thu, 8 Nov 2012 03:24:16 -0500 In-Reply-To: <509B6883.4010406@widodh.nl> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Wido den Hollander Cc: Travis Rhoden , ceph-devel On 08/11/12 21:08, Wido den Hollander wrote: > > > On 08-11-12 08:29, Travis Rhoden wrote: >> Hey folks, >> >> I'm trying to set up a brand new Ceph cluster, based on v0.53. My >> hardware has SSDs for journals, and I'm trying to get mkcephfs to >> intialize everything for me. However, the command hangs forever and I >> eventually have to kill it. >> >> After poking around a bit, it's clear that the problem has something >> to do with the journal. If I comment out the journal in ceph.conf, >> the commands proceed just find. This is the first time I've tried to >> throw a journal on a block device rather than a file, so maybe I've >> done something wrong with that. >> >> Here is the info from ceph.conf: >> >> >> [osd] >> osd journal size = 4000 > > Not sure if this is the problem, but when using a block device you don't > have to specify the size for the journal. Also might be useful to know make/model of ssd, plus motherboard make/model (in case commenting out size does not fix)! Regards Mark