Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 9C08D1023B for ; Wed, 5 Mar 2014 17:02:35 +0000 (UTC) Received: (qmail 75261 invoked by uid 500); 5 Mar 2014 17:02:32 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 75233 invoked by uid 500); 5 Mar 2014 17:02:32 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 75223 invoked by uid 99); 5 Mar 2014 17:02:31 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 05 Mar 2014 17:02:31 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=5.0 tests=RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of chris.burroughs@gmail.com designates 209.85.216.182 as permitted sender) Received: from [209.85.216.182] (HELO mail-qc0-f182.google.com) (209.85.216.182) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 05 Mar 2014 17:02:24 +0000 Received: by mail-qc0-f182.google.com with SMTP id e16so1464717qcx.27 for ; Wed, 05 Mar 2014 09:02:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=aYHuD1mnU00mBVp23GLJQeDXhVdS7S/hOyitQxWOSBg=; b=IpI6IIroec0btN77jAJEf3P49mozwk635+5Xy77b/whP0qYOhAgm8N3fEZ+l12QLEA pXbGCKq0ocgFB159KeQjxXQT6mRYXT/ulPEWgHzDxsu4WZD5hz9wPgBKeMRxHe9ldbgV byMkyNeSTgb0G3AZeyrdVsKZh1eKPGcvtiGbanONgVFEP6rW7Fcr0JQldIwwG8hF/tqS 1+osWo6fOIKQ8WhjVfpZA0zCJJzNc210We5vCeK08vDziETHFB80kzWAzGcNWCaoZqx2 gvw6aZpS9FT+ZLvvjQwDbLV3E/gU5Ni7IkvKA81XTVnN4Spj+jelNgTmNSUDvFgICf9g bdSA== X-Received: by 10.229.118.4 with SMTP id t4mr1775034qcq.9.1394038923390; Wed, 05 Mar 2014 09:02:03 -0800 (PST) Received: from [192.168.1.142] (208-58-66-240.c3-0.161-ubr1.lnh-161.md.cable.rcn.com. [208.58.66.240]) by mx.google.com with ESMTPSA id c60sm3806765qge.11.2014.03.05.09.02.02 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 05 Mar 2014 09:02:02 -0800 (PST) Message-ID: <53175903.9050600@gmail.com> Date: Wed, 05 Mar 2014 12:04:03 -0500 From: Chris Burroughs User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.0 MIME-Version: 1.0 To: user@cassandra.apache.org Subject: Re: mixed nodes, some SSD some HD References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org No. If you have a heterogeneous clusters you should consider adjusting the number of vnodes per physical node. On 03/04/2014 10:47 PM, Elliot Finley wrote: > Using Cassandra 2.0.x > > If I have a 3 node cluster and 2 of the nodes use spinning drives and 1 of > them uses SSD, will the majority of the reads be routed to the SSD node > automatically because it has faster responses? > > TIA, > Elliot >