Return-Path: 
 <user-return-16513-apmail-hadoop-user-archive=hadoop.apache.org@hadoop.apache.org>
X-Original-To: apmail-hadoop-user-archive@minotaur.apache.org
Delivered-To: apmail-hadoop-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 C8F2E11CE0
	for <apmail-hadoop-user-archive@minotaur.apache.org>;
 Wed,  6 Aug 2014 10:57:34 +0000 (UTC)
Received: (qmail 26777 invoked by uid 500); 6 Aug 2014 10:57:30 -0000
Delivered-To: apmail-hadoop-user-archive@hadoop.apache.org
Received: (qmail 26669 invoked by uid 500); 6 Aug 2014 10:57:30 -0000
Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:user-help@hadoop.apache.org>
List-Unsubscribe: <mailto:user-unsubscribe@hadoop.apache.org>
List-Post: <mailto:user@hadoop.apache.org>
List-Id: <user.hadoop.apache.org>
Reply-To: user@hadoop.apache.org
Delivered-To: mailing list user@hadoop.apache.org
Received: (qmail 26659 invoked by uid 99); 6 Aug 2014 10:57:29 -0000
Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230)
    by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 06 Aug 2014 10:57:29 +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 ana.gillan@gmail.com designates
 209.85.219.45 as permitted sender)
Received: from [209.85.219.45] (HELO mail-oa0-f45.google.com) (209.85.219.45)
    by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 06 Aug 2014 10:57:27 +0000
Received: by mail-oa0-f45.google.com with SMTP id i7so1675247oag.32
        for <user@hadoop.apache.org>; Wed, 06 Aug 2014 03:57:02 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=mime-version:date:message-id:subject:from:to:content-type;
        bh=7oEBWuhKGOsjWwO/liZWU9Spau/S/l8+zbKa2eSgvd4=;
        b=Xb13VXaNanzMmyCHc0Qp8h2SWX8Tf/UBCw7C4j7EgiyuD7qVsSsy1ulxeBPJvoNKwv
         bXk0f617ekMIyjYmogOOzIBv3BhOq3K97JMLtc3/OXsFJ1VbChO5KWZNYyYfvd/DKDbX
         a/2oRtS8pJg3R7a30F653e7aNp+ryPEpOOZZ6rsbJAmVsxnyWfQ62r1s900XPFt82Hb+
         kWu3A7tFklKRs7AfSOMRkfFUaio/z+0qXGQ5eCtxLmrIfgFFL1iDbLAc3zJbRuXV/nQW
         oaw7udHvlSAUOPScxym4Us1FP+4wExevUW0xCbJfQ+9nF1WeIupt1QdysmF9LS7dOa19
         NwUw==
MIME-Version: 1.0
X-Received: by 10.60.15.37 with SMTP id u5mr14063054oec.12.1407322622379; Wed,
 06 Aug 2014 03:57:02 -0700 (PDT)
Received: by 10.76.109.39 with HTTP; Wed, 6 Aug 2014 03:57:02 -0700 (PDT)
Date: Wed, 6 Aug 2014 11:57:02 +0100
Message-ID: 
 <CAMXegj9VW7rMxWBiDmWN1y3TeBHnpn8gog6hCV5ZuUmdo+YrHA@mail.gmail.com>
Subject: YARN Application Master Question
From: Ana Gillan <ana.gillan@gmail.com>
To: user@hadoop.apache.org
Content-Type: multipart/alternative; boundary=089e013cbd82fdcae604fff3d456
X-Virus-Checked: Checked by ClamAV on apache.org

--089e013cbd82fdcae604fff3d456
Content-Type: text/plain; charset=UTF-8

Hi,

In the documentation and papers about Apache YARN, they say that an
Application Master is launched for every application and it is this that
manages resources and scheduling for applications on Hadoop.

For example, if you submit 3 MapReduce jobs, and 2 Giraph jobs to your
cluster, does the Resource Manager spawn 2 AMs (one to manage all MapReduce
jobs and one to manage all Giraph jobs) or does it spawn 5 AMs (one for
each job)?

Thanks!
Ana

--089e013cbd82fdcae604fff3d456
Content-Type: text/html; charset=UTF-8

<div dir="ltr">Hi,<div><br></div><div>In the documentation and papers about Apache YARN, they say that an Application Master is launched for every application and it is this that manages resources and scheduling for applications on Hadoop.</div>
<div><br></div><div>For example, if you submit 3 MapReduce jobs, and 2 Giraph jobs to your cluster, does the Resource Manager spawn 2 AMs (one to manage all MapReduce jobs and one to manage all Giraph jobs) or does it spawn 5 AMs (one for each job)?</div>
<div><br></div><div>Thanks!</div><div>Ana</div></div>

--089e013cbd82fdcae604fff3d456--