Return-Path: Delivered-To: apmail-hadoop-core-user-archive@www.apache.org Received: (qmail 58408 invoked from network); 30 Apr 2009 14:23:59 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 30 Apr 2009 14:23:59 -0000 Received: (qmail 40233 invoked by uid 500); 30 Apr 2009 14:23:57 -0000 Delivered-To: apmail-hadoop-core-user-archive@hadoop.apache.org Received: (qmail 40138 invoked by uid 500); 30 Apr 2009 14:23:57 -0000 Mailing-List: contact core-user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: core-user@hadoop.apache.org Delivered-To: mailing list core-user@hadoop.apache.org Received: (qmail 40128 invoked by uid 99); 30 Apr 2009 14:23:57 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 30 Apr 2009 14:23:57 +0000 X-ASF-Spam-Status: No, hits=3.4 required=10.0 tests=HTML_MESSAGE,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (athena.apache.org: local policy) Received: from [74.125.46.29] (HELO yw-out-2324.google.com) (74.125.46.29) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 30 Apr 2009 14:23:49 +0000 Received: by yw-out-2324.google.com with SMTP id 9so1018425ywe.29 for ; Thu, 30 Apr 2009 07:23:26 -0700 (PDT) MIME-Version: 1.0 Received: by 10.100.12.1 with SMTP id 1mr3338505anl.107.1241101406461; Thu, 30 Apr 2009 07:23:26 -0700 (PDT) In-Reply-To: <7ef321c10904291700k73e67524jbf285bdb2f09a5d4@mail.gmail.com> References: <7ef321c10904291700k73e67524jbf285bdb2f09a5d4@mail.gmail.com> From: Aaron Kimball Date: Thu, 30 Apr 2009 23:23:06 +0900 Message-ID: Subject: Re: unable to see anything in stdout To: core-user@hadoop.apache.org Content-Type: multipart/alternative; boundary=0016e644ddea765e0c0468c6701a X-Virus-Checked: Checked by ClamAV on apache.org --0016e644ddea765e0c0468c6701a Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit First thing I would do is to run the job in the local jobrunner (as a single process on your local machine without involving the cluster): JobConf conf = ..... // set other params, mapper, etc. here conf.set("mapred.job.tracker", "local"); // use localjobrunner conf.set("fs.default.name", "file:///"); // read from local hard disk instead of hdfs JobClient.runJob(conf); This will actually print stdout, stderr, etc. to your local terminal. Try this on a single input file. This will let you confirm that it does, in fact, write to stdout. - Aaron On Thu, Apr 30, 2009 at 9:00 AM, Asim wrote: > Hi, > > I am not able to see any job output in userlogs//stdout. It > remains empty even though I have many println statements. Are there > any steps to debug this problem? > > Regards, > Asim > --0016e644ddea765e0c0468c6701a--