Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 58160 invoked from network); 25 Apr 2010 02:29:30 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 25 Apr 2010 02:29:30 -0000 Received: (qmail 9376 invoked by uid 500); 25 Apr 2010 02:29:29 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 9352 invoked by uid 500); 25 Apr 2010 02:29:29 -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 9344 invoked by uid 99); 25 Apr 2010 02:29:29 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 25 Apr 2010 02:29:29 +0000 X-ASF-Spam-Status: No, hits=2.2 required=10.0 tests=FREEMAIL_FROM,HTML_MESSAGE,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of sikerasakti@gmail.com designates 74.125.83.172 as permitted sender) Received: from [74.125.83.172] (HELO mail-pv0-f172.google.com) (74.125.83.172) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 25 Apr 2010 02:29:22 +0000 Received: by pvg16 with SMTP id 16so365511pvg.31 for ; Sat, 24 Apr 2010 19:29:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=7beRzGVeWQx1JWNBInyygJ/p1qi1c5u+ts6B4ZPFGVE=; b=euCr9N9W0AQsB11slbk7HbNMGfncLKmfqa+umpiTxXTSb+eLCT/TKGgt4537DTzXOG jh7iIRIfhNCjSzvsVyqWkJ5s2WAo3TmmExLt+zdJFndVhIS41LbUE0DQafElUWlrgJkk 6Uz2UIHAg/qG4di6zEv3SG1se9FlZFDXyncgg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=YswHwjXL6Yebu1qcXDLnUilBvFks5NUNbNkk43PgBTNxCqtXNE9N6ic+YjmbQAGmUx wg1qnZqyPbPNWyBvDNDCtA3t71yzvHqPc62ybXN07IlBCeY5OTUZH2TrDRcJWUlaSSWA 4TkJutcG3uaCBIxexv4DDi5bHRmitr8vOoND0= MIME-Version: 1.0 Received: by 10.141.124.2 with SMTP id b2mr375225rvn.23.1272162541085; Sat, 24 Apr 2010 19:29:01 -0700 (PDT) Received: by 10.140.136.8 with HTTP; Sat, 24 Apr 2010 19:29:01 -0700 (PDT) In-Reply-To: References: Date: Sun, 25 Apr 2010 09:29:01 +0700 Message-ID: Subject: Re: The Difference Between Cassandra and HBase From: dir dir To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary=00032556144e5ba4260485066cf4 X-Virus-Checked: Checked by ClamAV on apache.org --00032556144e5ba4260485066cf4 Content-Type: text/plain; charset=ISO-8859-1 Hi Paul, I have already read Jonathan Ellis's Blog today (http://spyced.blogspot.com/2009/03/why-i-like-cassandra.html) in this blog, Jonathan tried to explain the difference between Cassandra and Hbase. But I have several questions. In this blog Jonathan said: 1. Hbase Follows the bigtable model, so it's more complicated than it needs to be. (300+kloc vs 50 for Cassandra; many more components). This means it's that much harder for me to troubleshoot. But in same blog Jonathan also said that Cassandra is a sort of hybrid between dynamo and big table. Therefore I can conclude Cassandra also follows the Big Table model. my question is: what is the difference between Cassandra and Hbase since both of them follows the Big Table model?? I also do not understand what is the meaning of "so it's more complicated than it needs to be"?? Since Cassandra also follows Big Table model, why Hbase more complicated than it needs to be?? Jonathan also said "(300+kloc vs 50 for Cassandra; many more components)". Does that statement mean Coding in Hbase more long than Cassndra?? (therefore it is much harder for him to troubleshoot) To run Cassandra, should I check out the code from (http://svn.apache.org/repos/asf/incubator/cassandra/trunk)?? or as an User, I just enough download the binary software of Cassandra 0.6.1 from http://cassandra.apache.org?? Thank You. On Sun, Apr 25, 2010 at 2:05 AM, Paul Prescod wrote: > http://ria101.wordpress.com/2010/02/24/hbase-vs-cassandra-why-we-moved/ > > http://spyced.blogspot.com/2009/03/why-i-like-cassandra.html > > On Sat, Apr 24, 2010 at 10:20 AM, dir dir wrote: > > In general what is the difference between Cassandra and HBase?? > > > > Thanks. > > > --00032556144e5ba4260485066cf4 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi Paul,

I have already read Jonathan Ellis's Blog today
(http://spyced.blogspot.com/2009/03/why-i-like-cassandra.html<= /a>)

in this blog, Jonathan tried to explain the difference between Cassandr= a and Hbase.
But I have several questions. In this blog Jonathan said:
1. Hbase Follows the bigtable model, so it's more complicated tha= n it needs to=20 be.
=A0=A0=A0 (300+kloc vs 50 for Cassandra; many more components). This means it's that
=A0=A0=A0 much harder for = me to=20 troubleshoot.

But in same blog Jonathan also said that Cassandra is a sort of hybrid = between dynamo
and big table. Therefore I can conclude Cassandra also fo= llows the Big Table model.
my question is:=A0 what is the difference be= tween Cassandra and Hbase since both of
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0 them follows the Big Table model??

I also do not unders= tand what is the meaning of=A0 "so it's more complicated than it n= eeds to=20 be"??
Since Cassandra also follows Big Table model, why Hbase more= complicated than it needs
to be??

Jonathan also said "(300= +kloc vs 50 for Cassandra; many more components)".
Does that statement mean Coding in Hbase more l= ong than Cassndra??
(therefore it is much harder for him to troubleshoot= )

To run Cassandra, should I check out the code from
(http://svn.apac= he.org/repos/asf/incubator/cassandra/trunk)?? or as an User,
I just enough download the binary software of Cassandra 0.6.1=A0 from http://cassandra.apache.org??
=A0= =A0
Thank You.



On Sun, Apr 25= , 2010 at 2:05 AM, Paul Prescod <paul@prescod.net> wrote:
http://ria101.wordpress.com/2010/02/24/hbase-vs-cassandra-why-w= e-moved/

http://spyced.blogspot.com/2009/03/why-i-like-cassandra.htm= l

On Sat, Apr 24, 2010 at 10:20 AM, dir dir <sikerasakti@gmail.com> wrote:
> In general what is the difference between Cassandra and HBase??
>
> Thanks.
>

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