Return-Path: Delivered-To: apmail-hadoop-mapreduce-issues-archive@minotaur.apache.org Received: (qmail 92356 invoked from network); 8 Apr 2011 04:02:46 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 8 Apr 2011 04:02:46 -0000 Received: (qmail 10225 invoked by uid 500); 8 Apr 2011 04:02:46 -0000 Delivered-To: apmail-hadoop-mapreduce-issues-archive@hadoop.apache.org Received: (qmail 10200 invoked by uid 500); 8 Apr 2011 04:02:45 -0000 Mailing-List: contact mapreduce-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: mapreduce-issues@hadoop.apache.org Delivered-To: mailing list mapreduce-issues@hadoop.apache.org Received: (qmail 10157 invoked by uid 99); 8 Apr 2011 04:02:43 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 08 Apr 2011 04:02:43 +0000 X-ASF-Spam-Status: No, hits=-2000.0 required=5.0 tests=ALL_TRUSTED,T_RP_MATCHES_RCVD X-Spam-Check-By: apache.org Received: from [140.211.11.116] (HELO hel.zones.apache.org) (140.211.11.116) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 08 Apr 2011 04:02:42 +0000 Received: from hel.zones.apache.org (hel.zones.apache.org [140.211.11.116]) by hel.zones.apache.org (Postfix) with ESMTP id B41A497517 for ; Fri, 8 Apr 2011 04:02:05 +0000 (UTC) Date: Fri, 8 Apr 2011 04:02:05 +0000 (UTC) From: "Min Zhou (JIRA)" To: mapreduce-issues@hadoop.apache.org Message-ID: <217814936.42871.1302235325734.JavaMail.tomcat@hel.zones.apache.org> Subject: [jira] [Created] (MAPREDUCE-2425) Distributed simulator for stressing JobTracker and NameNode MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Distributed simulator for stressing JobTracker and NameNode ----------------------------------------------------------- Key: MAPREDUCE-2425 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2425 Project: Hadoop Map/Reduce Issue Type: New Feature Components: benchmarks Reporter: Min Zhou Fix For: 0.22.0 Hadoop need a tool for stressing JobTracker and NameNode. Mumak introduced a simulated JobTracker, whose behavior doesn't exactly like that of the real JobTracker. Even more, mumak can't simulate a large cluster with quite a lot of jobs run on it. On the other hand, Gridmix v3 need hundreds of physical nodes to replay job stories. You can think this tool a complementation of mumak and gridmix v3. We successfully used this tool to simulate a 12000 nodes cluster through 4 real machines. I've talk to Hong Tang and Scott Chen offline, they suggested me contributing this tool to the hadoop community. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira