Return-Path: X-Original-To: apmail-hadoop-hdfs-user-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-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 DF4B410081 for ; Thu, 21 Nov 2013 15:52:46 +0000 (UTC) Received: (qmail 69388 invoked by uid 500); 21 Nov 2013 15:52:37 -0000 Delivered-To: apmail-hadoop-hdfs-user-archive@hadoop.apache.org Received: (qmail 68978 invoked by uid 500); 21 Nov 2013 15:52:29 -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 68970 invoked by uid 99); 21 Nov 2013 15:52:28 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 21 Nov 2013 15:52:28 +0000 X-ASF-Spam-Status: No, hits=1.7 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of rickylee0815@gmail.com designates 209.85.212.176 as permitted sender) Received: from [209.85.212.176] (HELO mail-wi0-f176.google.com) (209.85.212.176) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 21 Nov 2013 15:52:22 +0000 Received: by mail-wi0-f176.google.com with SMTP id f4so8841981wiw.9 for ; Thu, 21 Nov 2013 07:52:02 -0800 (PST) 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=NRrNASCyvU++UKATO4tKgJR8JYWWAh1aj2kEd+5TwlI=; b=qF77Lk+wBHAGiwbu1nEW84xB3ZhK5kZTW0sZQKusrq1qpZL22ZL3Q179VAHhUyfX7t QDp2HeoMUVpEBBNkz4phzEvj5d5+HhD+QAAkxDpDH8VPM4+UtHPG7G3F37Fzzt0DCMoI VD1SS5hn1mIm1acGdd5o7jjypXfDj/LSgpbsKF3PdD10ANsG7dM5RC60kaXJzkdbJMPQ A6cLBNkoAy32alTV/6Sx857HRN6+1bCQC54Jgvp2n9t4m2j9A82ASrSQSSSKKvUT9iMX HNTTqNFPZv2PAq7LvrDkMoYzBlxZWQLB5zGirHCnMFTsRe20tHKENCgIGLhQzRldeQtH 8PDw== MIME-Version: 1.0 X-Received: by 10.180.208.4 with SMTP id ma4mr6281674wic.43.1385049121696; Thu, 21 Nov 2013 07:52:01 -0800 (PST) Received: by 10.216.236.65 with HTTP; Thu, 21 Nov 2013 07:52:01 -0800 (PST) Date: Thu, 21 Nov 2013 10:52:01 -0500 Message-ID: Subject: In YARN, how does a task tracker knows the address of a job tracker? From: ricky l To: user@hadoop.apache.org Content-Type: multipart/alternative; boundary=001a11c387e0e52f2704ebb1e052 X-Virus-Checked: Checked by ClamAV on apache.org --001a11c387e0e52f2704ebb1e052 Content-Type: text/plain; charset=ISO-8859-1 Hi all, I have a question of how a task tracker identifies job tracker address when I submit MR job through YARN. As far as I know, both job tracker and task trackers are launched through application master and I am curious about the details about job and task tracker launch sequence. thanks. --001a11c387e0e52f2704ebb1e052 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Hi all,

I have a question of how a task= tracker identifies job tracker address when I submit MR job through YARN. = As far as I know, both job tracker and task trackers are launched through a= pplication master and I am curious about the details about job and task tra= cker launch sequence.

thanks.=A0
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