From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wido den Hollander Subject: Re: Performance test on Ceph cluster Date: Wed, 07 Mar 2012 12:31:09 +0100 Message-ID: <4F5746FD.6090508@widodh.nl> References: <4352803.opIYE8Xzll@pc10> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from smtp01.mail.pcextreme.nl ([109.72.87.137]:49704 "EHLO smtp01.mail.pcextreme.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752408Ab2CGLbM (ORCPT ); Wed, 7 Mar 2012 06:31:12 -0500 In-Reply-To: <4352803.opIYE8Xzll@pc10> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Guido Winkelmann Cc: ceph-devel@vger.kernel.org Hi, On 03/07/2012 12:23 PM, Guido Winkelmann wrote: > Am Freitag, 24. Februar 2012, 10:51:10 schrieb Tommi Virtanen: >> On Fri, Feb 24, 2012 at 00:58, madhusudhana >> wrote: >>> 4. If you don't mind, can you please give me a bit of insight on cluster >>> network, what it is and how i can configure one for my ceph cluster ? >>> Will there be a significant performance improvement with this ? >> >> When a client submits a write to Ceph, it needs to be replicated >> (usually to two replicas). If all the ceph servers have two network >> interfaces, and you have two separate networks you connect the servers >> to, you can make the replication traffic go over the second interface, >> and thus you'll have more available bandwidth between the cluster and >> the clients in the first one. > > That sounds really interesting, any pointers on how that can be configured? You should take a look at: * public_addr * cluster_addr * public_network * cluster_network (From: src/common/config_opts.h) [osd] cluster network = 192.168.0.0/16 public network = 172.16.0.0/16 [osd.1] cluster addr = 192.168.0.1 public addr = 172.16.0.1 I haven't played with those options, but that should do it (I think) Wido > > As far as I can see, this is going to me I will have to assign to IP addresses > to each node, one for internal traffic, one for external... > > Regards, > Guido > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html