Return-Path: X-Original-To: apmail-mahout-user-archive@www.apache.org Delivered-To: apmail-mahout-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 ABA9D971C for ; Mon, 19 Sep 2011 05:18:34 +0000 (UTC) Received: (qmail 12640 invoked by uid 500); 19 Sep 2011 05:18:33 -0000 Delivered-To: apmail-mahout-user-archive@mahout.apache.org Received: (qmail 12562 invoked by uid 500); 19 Sep 2011 05:18:33 -0000 Mailing-List: contact user-help@mahout.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@mahout.apache.org Delivered-To: mailing list user@mahout.apache.org Received: (qmail 12547 invoked by uid 99); 19 Sep 2011 05:18:33 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 19 Sep 2011 05:18:33 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of ted.dunning@gmail.com designates 209.85.216.177 as permitted sender) Received: from [209.85.216.177] (HELO mail-qy0-f177.google.com) (209.85.216.177) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 19 Sep 2011 05:18:28 +0000 Received: by qyk31 with SMTP id 31so8603563qyk.1 for ; Sun, 18 Sep 2011 22:18:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=K7/55NBW0riSdNwABLRdchwg5/U/FVUwHx3Rlx1FgWw=; b=Iz2BWyc8rUDe/nfhEjnewy6QnUzXR9yMKyxQvAQdA8t0eYVY1fBOUvtX+ZmX/SUq/U U5oVg7DQRia2soaglOZkR9sH1FLOcbdvvBccZ0DIjrHgD7jA4x+luZReVZGbEEHsYotQ IBCGlVCdenYXclNxFGPeaSeAeukVDYddRVKMw= Received: by 10.224.212.1 with SMTP id gq1mr1425049qab.277.1316409487279; Sun, 18 Sep 2011 22:18:07 -0700 (PDT) MIME-Version: 1.0 Received: by 10.224.89.13 with HTTP; Sun, 18 Sep 2011 22:17:47 -0700 (PDT) In-Reply-To: <4E76CCFA.9070702@xebia.com> References: <4E762F5C.5060305@xebia.com> <4E76CCFA.9070702@xebia.com> From: Ted Dunning Date: Sun, 18 Sep 2011 23:17:47 -0600 Message-ID: Subject: Re: Clustering : Number of Reducers To: user@mahout.apache.org Content-Type: multipart/alternative; boundary=20cf300fb0ffde47e404ad44779f --20cf300fb0ffde47e404ad44779f Content-Type: text/plain; charset=UTF-8 On Sun, Sep 18, 2011 at 11:02 PM, Paritosh Ranjan wrote: > So, does this mean that Mahout can not support clustering for large data? > No. It means that in most clustering algorithms the combiners do enough work that the reducers have relatively little to do. --20cf300fb0ffde47e404ad44779f--