Return-Path: X-Original-To: apmail-hadoop-common-user-archive@www.apache.org Delivered-To: apmail-hadoop-common-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id D17AF9245 for ; Thu, 19 Apr 2012 17:29:34 +0000 (UTC) Received: (qmail 90760 invoked by uid 500); 19 Apr 2012 17:29:31 -0000 Delivered-To: apmail-hadoop-common-user-archive@hadoop.apache.org Received: (qmail 90708 invoked by uid 500); 19 Apr 2012 17:29:31 -0000 Mailing-List: contact common-user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: common-user@hadoop.apache.org Delivered-To: mailing list common-user@hadoop.apache.org Received: (qmail 90698 invoked by uid 99); 19 Apr 2012 17:29:31 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 19 Apr 2012 17:29:31 +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 (athena.apache.org: domain of filippo@ntoklo.com designates 74.125.82.48 as permitted sender) Received: from [74.125.82.48] (HELO mail-wg0-f48.google.com) (74.125.82.48) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 19 Apr 2012 17:29:23 +0000 Received: by wgbdq10 with SMTP id dq10so8045073wgb.29 for ; Thu, 19 Apr 2012 10:29:01 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=date:from:to:message-id:subject:x-mailer:mime-version:content-type :x-gm-message-state; bh=bh4aezkr6CECT0hFpDt5BVDoRXyVuxQZblwLWL9JNFg=; b=eSYGMxtfL5RGNxCVIxB/LQ0rRrW+saepfOXUcFYRtzteUVKgqUax4rBj89sM2fsH1B Sx420iUVSooVR/4SwHyPAbvmqyCiIw1PQ82dJhHFSPxW3cFhKfofTaP+Ah6YJOpvyMH6 bhG1g1mdC7CI5dEpw52x7itO0ZntZEGD/3/dceiMi3vmbxKAOKxlrRn1mEe/MiUbWzzp 3yAZN4F5JxSRZxiu2xESe+GhaMKArDzChQABmNNYlWJbHmLEZRnAe8tl6vG0MnMZ+y0f 6As2oGowO3/WhucJwOR3Eiw441Da3ssudPbLs9epxJWwAw7lxzQ6LYyI6Jyr3rJKQ6Xx X0ew== Received: by 10.180.79.72 with SMTP id h8mr351521wix.1.1334856541645; Thu, 19 Apr 2012 10:29:01 -0700 (PDT) Received: from Filippos-MacBook.local ([80.71.29.65]) by mx.google.com with ESMTPS id n8sm10390694wix.10.2012.04.19.10.29.00 (version=SSLv3 cipher=OTHER); Thu, 19 Apr 2012 10:29:00 -0700 (PDT) Date: Thu, 19 Apr 2012 18:28:58 +0100 From: Filippo Diotalevi To: common-user@hadoop.apache.org Message-ID: Subject: Troubleshoot job failures after upgrade to 1.0.2 X-Mailer: sparrow 1.5 (build 1043.1) MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="4f904b5a_475b8d69_15002" X-Gm-Message-State: ALoCoQnus6n3cQuRSv1EXJwXZ3/mTKWZyFKCNI6xIDoejNj+WF3rGHE3TY/ga9AAFCO0JRvXJNrm X-Virus-Checked: Checked by ClamAV on apache.org --4f904b5a_475b8d69_15002 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi, I have an application on Cassandra 1.0.8 + Hadoop. Previously running on the cloudera distribution hadoop-0.20.2-cdh3u1, I tried today to upgrade to Hadoop 1.0.2 but stumbled in issues with consistent job failures The hadoop userlogs seem quite clear: 2012-04-19 18:21:09.837 java[57837:1903] Unable to load realm info from SCDynamicStore Apr 19, 2012 6:21:10 PM org.apache.hadoop.util.NativeCodeLoader WARNING: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable Apr 19, 2012 6:21:10 PM org.apache.hadoop.mapred.Child main SEVERE: Error running child : java.lang.NoClassDefFoundError: Could not initialize class org.apache.log4j.LogManager at org.apache.hadoop.mapred.TaskLog.syncLogs(TaskLog.java:334) at org.apache.hadoop.mapred.Child.main(Child.java:229) In particular, the SEVERE: Error running child : java.lang.NoClassDefFoundError: Could not initialize class org.apache.log4j.LogManager seem to be the most reasonable cause. Can you help me troubleshoot the cause of the failure? Thanks, -- Filippo Diotalevi --4f904b5a_475b8d69_15002--