From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wido den Hollander Subject: Re: questions about radosgw Date: Thu, 05 Jan 2012 15:06:27 +0100 Message-ID: <4F05AE63.8080302@widodh.nl> References: 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]:48555 "EHLO smtp01.mail.pcextreme.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753099Ab2AEOG3 (ORCPT ); Thu, 5 Jan 2012 09:06:29 -0500 In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: huang jun Cc: ceph-devel@vger.kernel.org Hi, On 01/05/2012 12:48 PM, huang jun wrote: > hi,all > I'am using the s3+radosgw, there are some questions confused me very much: > first) An object's size is 400MB, then the whole object will stored > in OSDs as one big single object, but not striped into 4MB objects. so > how can we got workload banlance if we want to store big objects and > small ones? That is correct, RADOS nor the RADOS gateway stripes objects. You will get workload balance if you have a (almost) even spread of workload over your different objects. The dev's might shed some more light on this. > second) Can we change the number of pgs in a pool that created by S3 > clients or just using rados commands? As far as I know you can't do this through the S3 clients but only with the rados commands. I also would find it rather weird if you could do this as a client. Wido > > thanks >