Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 59106 invoked from network); 10 May 2010 08:28:24 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 10 May 2010 08:28:24 -0000 Received: (qmail 10834 invoked by uid 500); 10 May 2010 08:28:23 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 10682 invoked by uid 500); 10 May 2010 08:28:23 -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 10674 invoked by uid 99); 10 May 2010 08:28:23 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 10 May 2010 08:28:23 +0000 X-ASF-Spam-Status: No, hits=2.3 required=10.0 tests=AWL,FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of vineetdaniel@gmail.com designates 209.85.210.194 as permitted sender) Received: from [209.85.210.194] (HELO mail-yx0-f194.google.com) (209.85.210.194) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 10 May 2010 08:28:17 +0000 Received: by yxe32 with SMTP id 32so2456264yxe.11 for ; Mon, 10 May 2010 01:27:57 -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=QxTWjoO1+8tPyaNqSWuacFnN091N+pnBNIMkTIzE4yY=; b=eXqJd/aLIrblSfAJ288WZkF6UcsJO5xxOACSHTzbP4lwgUm0Mtp7S4O1mDB+h+WKd7 5pwcmIM+T8vc3roj4CY4/+6pTrszr86usECk/bKfTiGm8LCVCLHo83JA69PSLC070oFP 8DyHHlLzVw5qjwMgP11T0cWf4Jbgi3GTSDIJQ= 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=SK0pdPAu8Cb7REQ9lPDDjEYi6RAt6VlxRuU2QxoiVLBHV8NhCWIHLQJJt4wa8wvx/7 RzBKGKNHBr5wPNy3qtW+wy3Tyk+tsVKy4nueIl0ZHp946bWokMCf9YU/nVIHBBhMCtcv +OYMGFhPqHosClKhvHIy640asFQKjhibQaa6Q= MIME-Version: 1.0 Received: by 10.150.60.17 with SMTP id i17mr8452395yba.94.1273480075702; Mon, 10 May 2010 01:27:55 -0700 (PDT) Received: by 10.151.107.5 with HTTP; Mon, 10 May 2010 01:27:55 -0700 (PDT) In-Reply-To: References: Date: Mon, 10 May 2010 13:57:55 +0530 Message-ID: Subject: Re: Tuning Cassandra From: vd To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary=000e0cd6ad808ade8c0486392fcd --000e0cd6ad808ade8c0486392fcd Content-Type: text/plain; charset=UTF-8 What is the complete code string you are using to connect with cassandra from Java code On Mon, May 10, 2010 at 1:49 PM, David Boxenhorn wrote: > I don't know what "TSocket or the buffered one" means. Maybe I should know? > > I'm using Hector. Does that explain anything? > > On Mon, May 10, 2010 at 11:15 AM, vd wrote: > >> >> Hi >> >> what is it that you are using to connect with cassnadra TSocket or the >> buffered one ? >> >> >> ____________________________________ >> >> _______________________________________ >> >> >> >> >> On Mon, May 10, 2010 at 1:29 PM, David Boxenhorn wrote: >> >>> I'm running Java on the client, jdbc queries on Oracle, Hector on >>> Cassandra. >>> >>> The Cassandra and Oracle database designs are radically different, as you >>> might guess. >>> >>> I have no doubt that Cassandra can be tuned, in a multiple-server >>> cluster, to have superior throughput (that's why I'm doing it!). But for >>> now, it's really frustrating my development effort that Cassandra is so >>> slow. Can't I get it up to twice as slow as Oracle in my configuration? >>> >>> On Mon, May 10, 2010 at 10:47 AM, vd wrote: >>> >>>> Hi David >>>> >>>> If I may ask...how do you plan to import data from oracle to cassandra ? >>>> As answer AFAIK cassandra's true ability comes into play when running on >>>> more than one machine...and please share how you are making comparisons like >>>> on writes or reads from cassandra. >>>> >>>> >>>> >>>> _______________________________________ >>>> _______________________________________ >>>> >>>> >>>> >>>> >>>> >>>> On Mon, May 10, 2010 at 1:04 PM, David Boxenhorn wrote: >>>> >>>>> I'm running Oracle and Cassandra on my machine, trying to import my >>>>> data to Cassandra from Oracle. >>>>> >>>>> In my configuration Oracle is about ten times faster than Cassandra. >>>>> Cassandra has out-of-the-box tuning. >>>>> >>>>> I am new to Cassandra. How do I begin trying to tune it? >>>>> >>>>> Thanks. >>>>> >>>> >>>> >>> >> > --000e0cd6ad808ade8c0486392fcd Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable What is the complete code string you are using to connect with cassandra fr= om Java code



On Mon, May 10, 2010 at 1:49 PM, David B= oxenhorn <david@l= ookin2.com> wrote:
I don't know what "TSocket or the buffered one&qu= ot; means. Maybe I should know?

I'm using Hector. Does that expl= ain anything?

On Mon, = May 10, 2010 at 11:15 AM, vd <vineetdaniel@gmail.com> w= rote:

Hi

what is it that you are using to connect with cassnadra TSocket = or the buffered one ?


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On Mon, May 10, 2010 at 1:29 PM, David B= oxenhorn <david@lookin2.com> wrote:
I'm running Java on the client, jdbc queries on Oracle= , Hector on Cassandra.

The Cassandra and Oracle database designs are= radically different, as you might guess.

I have no doubt that Cassa= ndra can be tuned, in a multiple-server cluster, to have superior throughpu= t (that's why I'm doing it!). But for now, it's really frustrat= ing my development effort that Cassandra is so slow. Can't I get it up = to twice as slow as Oracle in my configuration?

On Mon, May 10, 2010 at 10:47 AM, vd <= vineetdaniel@gmail.com> wrote:
Hi David

If I may ask...how do you plan to import data from oracle t= o cassandra ?
As answer AFAIK cassandra's true ability comes into pl= ay when running on more than one machine...and please share how you are mak= ing comparisons like on writes or reads from cassandra.



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On Mon, May 10, 2010 at 1:04 PM, David B= oxenhorn <david@lookin2.com> wrote:
I'm running Oracle and Cassandra on my machine, trying= to import my data to Cassandra from Oracle.

In my configuration Ora= cle is about ten times faster than Cassandra. Cassandra has out-of-the-box = tuning.

I am new to Cassandra. How do I begin trying to tune it?

Thanks.= =C2=A0





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