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 30BB510B87 for ; Wed, 11 Sep 2013 23:41:15 +0000 (UTC) Received: (qmail 78109 invoked by uid 500); 11 Sep 2013 23:41:12 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 78041 invoked by uid 500); 11 Sep 2013 23:41:12 -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 78033 invoked by uid 99); 11 Sep 2013 23:41:12 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 11 Sep 2013 23:41:12 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of shahab.yunus@gmail.com designates 209.85.214.49 as permitted sender) Received: from [209.85.214.49] (HELO mail-bk0-f49.google.com) (209.85.214.49) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 11 Sep 2013 23:41:05 +0000 Received: by mail-bk0-f49.google.com with SMTP id r7so3824013bkg.36 for ; Wed, 11 Sep 2013 16:40:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=knLXfaDeejbWWIZk5cUQPgIzRHPZNfe47MRdF2rtZUM=; b=uq7XBqXmt+MW9KYOSsE+HKO0gh6KcQRxgPZ8KHZOootDyGZXL1PJgLNPYmj3OuNygc prx+9P3/G4kiKuUCtRN6Aka+qHMd7ZQ1muHSYpDfVWH9O14nLC6Wpc0lr9GhHkFtKcau 9g5wN/e4TxWNeFnGAAHM6V8MkKdlfK5QsVDNR/hMDHvOWI+6US9ormm1wn6lx7LxQdse +EL1UYjD+sT/HoOZwVtz4rYIJ/eKf9/mjENfLjr8AIgwnbC3q1uHmNT5xgxd089LH5Vi 9v2Irp27qG240CMUMSZh5jBJz6i9rbtAxVr4/G2eIRCLYooq4yee2H4jQ+cT3kh3I1Ni CYLQ== MIME-Version: 1.0 X-Received: by 10.204.63.7 with SMTP id z7mr3852916bkh.23.1378942845408; Wed, 11 Sep 2013 16:40:45 -0700 (PDT) Received: by 10.204.231.76 with HTTP; Wed, 11 Sep 2013 16:40:45 -0700 (PDT) In-Reply-To: References: Date: Wed, 11 Sep 2013 19:40:45 -0400 Message-ID: Subject: Re: VMs versus Physical machines From: Shahab Yunus To: "user@cassandra.apache.org" Content-Type: multipart/alternative; boundary=001a11c3782877881904e624261e X-Virus-Checked: Checked by ClamAV on apache.org --001a11c3782877881904e624261e Content-Type: text/plain; charset=ISO-8859-1 Thanks Aaron for the reply. Yes, VMs or the nodes will be in cloud if we don't go the physical route. " Look how Cassandra scales and provides redundancy. " But how does it differ for physical machines or VMs (in cloud.) Or after your first comment, are you saying that there is no difference whether we use physical or VMs (in cloud)? Regards, Shahab On Wed, Sep 11, 2013 at 7:34 PM, Aaron Turner wrote: > Physical machines unless you're running your cluster in the cloud > (AWS/etc). > > Reason is simple: Look how Cassandra scales and provides redundancy. > > Aaron Turner > http://synfin.net/ Twitter: @synfinatic > https://github.com/synfinatic/tcpreplay - Pcap editing and replay tools > for Unix & Windows > Those who would give up essential Liberty, to purchase a little temporary > Safety, deserve neither Liberty nor Safety. > -- Benjamin Franklin > > > > On Wed, Sep 11, 2013 at 4:21 PM, Shahab Yunus wrote: > >> Hello, >> >> We are deciding whether to get VMs or physical machines for a Cassandra >> cluster. I know this is a very high-level question depending on lots of >> factors and in fact I want to know that how to tackle this is and what >> factors should we take into consideration while trying to find the answer. >> >> Data size? Writing speed (whether write heavy usecases or not)? Random >> ead use-cases? column family design/how we store data? >> >> Any pointers, documents, guidance, advise would be appreciated. >> >> Thanks a lot. >> >> Regards, >> Shahab >> > > --001a11c3782877881904e624261e Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Thanks Aaron for the reply. Yes, VMs or the nodes will be = in cloud if we don't go the physical route.

"=A0Look how Cassa= ndra scales and provides redundancy. =A0"
But how does it differ for physical m= achines or VMs (in cloud.) Or after your first comment, are you saying that= there is no difference whether we use physical or VMs (in cloud)?

Regards,
Shahab


On Wed, Sep 11, 2013= at 7:34 PM, Aaron Turner <synfinatic@gmail.com> wrote:
Physical machines unless yo= u're running your cluster in the cloud (AWS/etc).

Re= ason is simple: Look how Cassandra scales and provides redundancy. =A0

Aaron Turner
http://synfin.net/=A0 =A0 =A0 =A0=A0 Twit= ter: @synfinatic
https://github.com/synfinatic/tcpreplay=A0- Pcap editing= and replay tools for Unix & Windows
Those who would give up essential Liberty, to purchase a little temporary <= br>Safety, deserve neither Liberty nor Safety.=A0
=A0 =A0 -- Benjamin F= ranklin



On Wed, Sep 11, 2013 at 4:21 PM, Shahab = Yunus <shahab.yunus@gmail.com> wrote:
Hello,

We are deciding whether to get V= Ms or physical machines for a Cassandra cluster. I know this is a very high= -level question depending on lots of factors and in fact I want to know tha= t how to tackle this is and what factors should we take into consideration = while trying to find the answer.

Data size? Writing speed (whether write heavy usecases = or not)? Random ead use-cases? column family design/how we store data?=A0

Any pointers, documents, guidance, advise would be = appreciated.

Thanks a lot.

Regards,
Shahab


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