From general-return-2180-apmail-hadoop-general-archive=hadoop.apache.org@hadoop.apache.org Tue Oct 19 18:31:43 2010 Return-Path: Delivered-To: apmail-hadoop-general-archive@minotaur.apache.org Received: (qmail 72129 invoked from network); 19 Oct 2010 18:31:42 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 19 Oct 2010 18:31:42 -0000 Received: (qmail 44511 invoked by uid 500); 19 Oct 2010 18:31:41 -0000 Delivered-To: apmail-hadoop-general-archive@hadoop.apache.org Received: (qmail 44307 invoked by uid 500); 19 Oct 2010 18:31:40 -0000 Mailing-List: contact general-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: general@hadoop.apache.org Delivered-To: mailing list general@hadoop.apache.org Received: (qmail 44297 invoked by uid 99); 19 Oct 2010 18:31:40 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 19 Oct 2010 18:31:40 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of anil@kitenga.com designates 205.209.188.5 as permitted sender) Received: from [205.209.188.5] (HELO kitenga.com) (205.209.188.5) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 19 Oct 2010 18:31:32 +0000 Received: from smlucid3lt (55.tensv.org [71.6.14.55] (may be forged)) (authenticated bits=0) by kitenga.com (8.13.1/8.13.1) with ESMTP id o9JIV60I001211 for ; Tue, 19 Oct 2010 11:31:07 -0700 From: "Anil Uberoi" To: References: In-Reply-To: Subject: RE: Architecture Date: Tue, 19 Oct 2010 11:31:06 -0700 Message-ID: <001401cb6fbb$cc09e880$641db980$@com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Actq1i6+hc039LXzJkiOs5oPzinFPAE5W9Ig Content-Language: en-us Andre, Hope all is well. I 'd like to invite you to check out www.kitenga.com We'd be more than happy to help. Best regards, Anil ------------------------------------------------------------------ Anil Uberoi | CEO | Kitenga | Reinventing Information www.kitenga.com | 510.507.3399 -----Original Message----- From: a.reiter@web.de [mailto:a.reiter@web.de] Sent: Wednesday, October 13, 2010 5:57 AM To: general@hadoop.apache.org Subject: Architecture Hello everybody, i'm evaluating hadoop for a new platform. the application is a web based application, and the challange is to handle requests up to 1.000.000 times per second. this can actually be solved by load ballanced webservers. The problem now is to persist user data at real time. Let's say every request appends some data to the user record, i.e. 100 bytes are appended. The record would have an identifier placed in the cookie. The problem now is to look up the user record for every request at runtime. Is it possible to get the user record with the information about all former requests in a short time i.e. 50 ms ??? i hove no experience with hadoop yet every help would be very appreciated thanks in advance best regards andre