Return-Path: Delivered-To: apmail-hadoop-common-user-archive@www.apache.org Received: (qmail 1856 invoked from network); 8 Mar 2011 22:04:52 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 8 Mar 2011 22:04:52 -0000 Received: (qmail 19151 invoked by uid 500); 8 Mar 2011 22:04:49 -0000 Delivered-To: apmail-hadoop-common-user-archive@hadoop.apache.org Received: (qmail 19116 invoked by uid 500); 8 Mar 2011 22:04:49 -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 19108 invoked by uid 99); 8 Mar 2011 22:04:49 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 08 Mar 2011 22:04:49 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=5.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: local policy) Received: from [128.135.249.245] (HELO authsmtp00.uchicago.edu) (128.135.249.245) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 08 Mar 2011 22:04:40 +0000 Received: from [165.68.219.77] ([165.68.219.77]) (authenticated bits=0) by authsmtp00.uchicago.edu (8.13.8/8.13.8) with ESMTP id p28M4IKg031117 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 8 Mar 2011 16:04:18 -0600 Message-ID: <4D76A7E5.1050709@uchicago.edu> Date: Tue, 08 Mar 2011 16:04:21 -0600 From: Shi Yu User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9 MIME-Version: 1.0 To: hadoop user Subject: java.io.IOException: Task process exit with nonzero status of 134 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org What is the true reason of causing this? I realized there are many reports on web, but couldn't find the exact solution? I have this problem when using compressed sequence file output. SequenceFileOutputFormat.setCompressOutput(conf, true); SequenceFileOutputFormat.setOutputCompressorClass(conf, GzipCodec.class); SequenceFileOutputFormat.setOutputCompressionType(conf, CompressionType.BLOCK); If I remove that 3 lines, everything is fine. I am using hadoop 0.19.2, is there any way to avoid the problem without upgrading hadoop? Thanks! Shi