From hdfs-dev-return-792-apmail-hadoop-hdfs-dev-archive=hadoop.apache.org@hadoop.apache.org Wed Feb 03 18:15:51 2010 Return-Path: Delivered-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Received: (qmail 48487 invoked from network); 3 Feb 2010 18:15:51 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 3 Feb 2010 18:15:51 -0000 Received: (qmail 33564 invoked by uid 500); 3 Feb 2010 18:15:50 -0000 Delivered-To: apmail-hadoop-hdfs-dev-archive@hadoop.apache.org Received: (qmail 33404 invoked by uid 500); 3 Feb 2010 18:15:49 -0000 Mailing-List: contact hdfs-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-dev@hadoop.apache.org Delivered-To: mailing list hdfs-dev@hadoop.apache.org Received: (qmail 33247 invoked by uid 99); 3 Feb 2010 18:15:49 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 03 Feb 2010 18:15:49 +0000 X-ASF-Spam-Status: No, hits=-2000.0 required=10.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.140] (HELO brutus.apache.org) (140.211.11.140) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 03 Feb 2010 18:15:48 +0000 Received: from brutus.apache.org (localhost [127.0.0.1]) by brutus.apache.org (Postfix) with ESMTP id EBDB029A0026 for ; Wed, 3 Feb 2010 10:15:27 -0800 (PST) Message-ID: <1670264646.7471265220927964.JavaMail.jira@brutus.apache.org> Date: Wed, 3 Feb 2010 18:15:27 +0000 (UTC) From: "Arun C Murthy (JIRA)" To: hdfs-dev@hadoop.apache.org Subject: [jira] Created: (HDFS-945) Make NameNode resilient to DoS attacks (malicious or otherwise) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Make NameNode resilient to DoS attacks (malicious or otherwise) --------------------------------------------------------------- Key: HDFS-945 URL: https://issues.apache.org/jira/browse/HDFS-945 Project: Hadoop HDFS Issue Type: Improvement Components: name-node Reporter: Arun C Murthy We've seen defective applications cause havoc on the NameNode, for e.g. by doing 100k+ 'listStatus' on very large directories (60k files) etc. I'd like to start a discussion around how we prevent such, and possibly malicious applications in the future, taking down the NameNode. Thoughts? -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.