Return-Path: X-Original-To: apmail-hadoop-mapreduce-user-archive@minotaur.apache.org Delivered-To: apmail-hadoop-mapreduce-user-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id E77BAC4CA for ; Wed, 17 Dec 2014 15:32:57 +0000 (UTC) Received: (qmail 26557 invoked by uid 500); 17 Dec 2014 15:32:52 -0000 Delivered-To: apmail-hadoop-mapreduce-user-archive@hadoop.apache.org Received: (qmail 26453 invoked by uid 500); 17 Dec 2014 15:32:52 -0000 Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hadoop.apache.org Delivered-To: mailing list user@hadoop.apache.org Received: (qmail 26441 invoked by uid 99); 17 Dec 2014 15:32:52 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 17 Dec 2014 15:32:52 +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 drdwitte@gmail.com designates 209.85.215.43 as permitted sender) Received: from [209.85.215.43] (HELO mail-la0-f43.google.com) (209.85.215.43) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 17 Dec 2014 15:32:26 +0000 Received: by mail-la0-f43.google.com with SMTP id s18so13483252lam.16 for ; Wed, 17 Dec 2014 07:30:11 -0800 (PST) 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=JF1Lt9xZ8eHsZdr9CJPtZTsYcwY4kBG+yL2utahaQ48=; b=C5lkKBMoyvhXon8rF2UoBumheZ6IDFcHNHPJAO3GI7z+uu7iiVRYaLGhGg22YvdfeU nqKH4Y5XFc3UpvuDtgxMEv09DZE0oO5SocHcL+p1V7Bf3OPkF2qVzdBnw+xpFoyI1Jxb f4vTVStW5BVYn1bziEY5lFWrCAx5cYVtcZFSOdHkUMi+fIeoaioIQzZJKGLuhKOVGvLW Y2HaE24AdIprJmQ2QmYdys01Z8mU02ohQEVoOkk8TzlrrqPvEvJpfFgU5N4QjC4Wjfvw SKzrmqnLT02ykNeWZDAJJlaLwbAXkglxTVidfB2cyNxa4Gp5OLapXCe9dsk4kGYr8Pd3 MNJQ== MIME-Version: 1.0 X-Received: by 10.112.167.228 with SMTP id zr4mr4005368lbb.20.1418830211047; Wed, 17 Dec 2014 07:30:11 -0800 (PST) Received: by 10.112.168.97 with HTTP; Wed, 17 Dec 2014 07:30:10 -0800 (PST) In-Reply-To: <984bd20.c1d0.14a589be21b.Coremail.bit1129@163.com> References: <984bd20.c1d0.14a589be21b.Coremail.bit1129@163.com> Date: Wed, 17 Dec 2014 16:30:10 +0100 Message-ID: Subject: Re: How many blocks does one input split have? From: Dieter De Witte To: user@hadoop.apache.org Content-Type: multipart/alternative; boundary=001a11c2432ab9e91c050a6b260a X-Virus-Checked: Checked by ClamAV on apache.org --001a11c2432ab9e91c050a6b260a Content-Type: text/plain; charset=UTF-8 Hi, Check this post: http://stackoverflow.com/questions/17727468/hadoop-input-split-size-vs-block-size Regards, D 2014-12-17 15:16 GMT+01:00 Todd : > > Hi Hadoopers, > > I got a question about how many blocks does one input split have? It is > random or the number can be configured or fixed(can't be changed)? > Thanks! > --001a11c2432ab9e91c050a6b260a Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

2014-12-17 15:16 GMT+01:00 = Todd <bit1129@163.com>:
= Hi Hadoopers,

I got a question about how many blocks does one input = split have? It is random or the number can be configured or fixed(can't= be changed)?
Thanks!
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