Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 9C8BF200B6B for ; Thu, 25 Aug 2016 21:18:54 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 9AE07160AA5; Thu, 25 Aug 2016 19:18:54 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id E2F26160AA4 for ; Thu, 25 Aug 2016 21:18:53 +0200 (CEST) Received: (qmail 31726 invoked by uid 500); 25 Aug 2016 19:18:47 -0000 Mailing-List: contact common-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list common-dev@hadoop.apache.org Received: (qmail 31705 invoked by uid 99); 25 Aug 2016 19:18:47 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 25 Aug 2016 19:18:47 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id E44EA1A575B; Thu, 25 Aug 2016 19:18:46 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 1.179 X-Spam-Level: * X-Spam-Status: No, score=1.179 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=2, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=disabled Authentication-Results: spamd2-us-west.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id c-NiPjUv2GBh; Thu, 25 Aug 2016 19:18:46 +0000 (UTC) Received: from mail-lf0-f53.google.com (mail-lf0-f53.google.com [209.85.215.53]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTPS id AD21E5F471; Thu, 25 Aug 2016 19:18:45 +0000 (UTC) Received: by mail-lf0-f53.google.com with SMTP id b199so41677549lfe.0; Thu, 25 Aug 2016 12:18:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to; bh=E6H8uUC2HN6QGRdNul2L31AkVv02vshtSJ/vqc6xgsk=; b=CR07uOdTYWjCLEvXrrsu6xZqYhLOjl9rKOEiN/1R6qcmLywKCIAOHbkprlVmlfwDKh BCrk+EPixyUnK1w1EBqsN6Do2v2MUNL7q27DNiUItBtU3xzzNxGJCt7ij80n1vb7R/MZ ilAsiBfNPWQ3bwg+nJvqKwa69WPbVCMHgTtIP11YBLyeOUSyZZ2TcYaw+BsPuH/Mzw9O B76ft+r7EFpo7bLW48/ndCW3Y/piG6C8Kgcoi5sIMbR1/QKbPh0TGZdWLItnSC/ePm+i bs5jkDS7qL//BGic7U/Wej5JnjFKky1iFGs2N9khozrLuiQoz7UszoEzvgj5/1iAZtpR penA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=E6H8uUC2HN6QGRdNul2L31AkVv02vshtSJ/vqc6xgsk=; b=RmbVaxKyRGerHQ5tdr65AILXCl5NfDrF7EnYU+byuVfEGwdDzlaaBAHIiAnDQTP1rM W7fHIWO9cyno4emgnB04dCHql0AkdNDEKWKgiehfyG+RKoE5xM7B24wEikhvETM4ILtQ G1Hcl1WOMVQc5+ykpwwacfGn1DQZLv3veD90PuX4H0RJ6JrFDMfngG0GJSceiKbhGOlv l2Af0KedwvZZ2YjldBHQmVJ18194uCLi5NQcgTl80SSLXHGGHqcK5Yh9myME6swRWyOL e0fMXaUmubp0Q9A7xU4D5woMcq3J6xtLDUvnnfjKikdrhBgBnIE3LvFvCVMH14B8svNm 5FfQ== X-Gm-Message-State: AE9vXwPiacYW+PSgFA0HoNKF1QPu5bb83YSWfk/lLyuhYknzpIVr9hZO/u2egtnyjTVjlPuK+IQgkIzOGvra5w== X-Received: by 10.25.34.65 with SMTP id i62mr3238866lfi.7.1472152724981; Thu, 25 Aug 2016 12:18:44 -0700 (PDT) MIME-Version: 1.0 Received: by 10.25.155.142 with HTTP; Thu, 25 Aug 2016 12:18:14 -0700 (PDT) From: xeon Mailinglist Date: Thu, 25 Aug 2016 20:18:14 +0100 Message-ID: Subject: What is the class that launches the reducers? To: "user@hadoop.apache.org" , common-dev@hadoop.apache.org Content-Type: multipart/alternative; boundary=001a113aab823a4ddf053aea4487 archived-at: Thu, 25 Aug 2016 19:18:54 -0000 --001a113aab823a4ddf053aea4487 Content-Type: text/plain; charset=UTF-8 I am trying to implement a mechanism in MapReduce v2 that allows to suspend and resume a job. I must suspend a job when all the mappers finish, and resume the job from that point after some time. I do this, because I want to verify the integrity of the map output before executing the reducers. I am looking for the class that tells when the Reduce tasks should start. Does anyone know where is this? --001a113aab823a4ddf053aea4487--