From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wido den Hollander Subject: Re: Request for ceph.conf environment extension Date: Mon, 06 May 2013 14:46:44 +0200 Message-ID: <5187A634.7010804@42on.com> References: <20130506091822.GA26022@upset.ux.pdb.fsc.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from websrv.42on.com ([31.25.102.167]:51176 "EHLO websrv.42on.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752938Ab3EFMqq (ORCPT ); Mon, 6 May 2013 08:46:46 -0400 In-Reply-To: <20130506091822.GA26022@upset.ux.pdb.fsc.net> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Andreas Friedrich Cc: Ceph Development On 05/06/2013 11:18 AM, Andreas Friedrich wrote: > Hello, > > we are using Infiniband instead of Ethernet for cluster interconnection. > Instead of IPoIB (IP-over-InfiniBand Protocol) we want to use SDP > (Sockets Direct Protocol) as a mid layer protocol. > > To connect the Ceph daemons to SDP without changing the Ceph code, the > LD_PRELOAD mechanism can be used. > > To enable the LD_PRELOAD mechanism for the Ceph daemons only, a little > generic extension in the global section of /etc/ceph/ceph.conf would > be helpful, e.g.: > > [global] > environment = LD_PRELOAD=/usr/lib64/libsdp.so.1 > > The appending patch adds 5 lines in the Bobtail (0.56.6) init script. > The init script will then read the environment setting and - if present - > call the Ceph daemons with the preceding environment string. > You can also submit this via a Pull request on Github. That way the author stays preserved and you get all the credits for this patch :) > With best regards > Andreas Friedrich > ---------------------------------------------------------------------- > FUJITSU > Fujitsu Technology Solutions GmbH > Heinz-Nixdorf-Ring 1, 33106 Paderborn, Germany > Tel: +49 (5251) 525-1512 > Fax: +49 (5251) 525-321512 > Email: andreas.friedrich@ts.fujitsu.com > Web: ts.fujitsu.com > Company details: de.ts.fujitsu.com/imprint > ---------------------------------------------------------------------- > -- Wido den Hollander 42on B.V. Phone: +31 (0)20 700 9902 Skype: contact42on