Return-Path: Delivered-To: apmail-lucene-hadoop-user-archive@locus.apache.org Received: (qmail 73259 invoked from network); 17 Oct 2007 19:55:06 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 17 Oct 2007 19:55:06 -0000 Received: (qmail 6796 invoked by uid 500); 17 Oct 2007 19:54:48 -0000 Delivered-To: apmail-lucene-hadoop-user-archive@lucene.apache.org Received: (qmail 6760 invoked by uid 500); 17 Oct 2007 19:54:48 -0000 Mailing-List: contact hadoop-user-help@lucene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hadoop-user@lucene.apache.org Delivered-To: mailing list hadoop-user@lucene.apache.org Received: (qmail 6751 invoked by uid 99); 17 Oct 2007 19:54:48 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 17 Oct 2007 12:54:48 -0700 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of get2thachopper@gmail.com designates 66.249.92.174 as permitted sender) Received: from [66.249.92.174] (HELO ug-out-1314.google.com) (66.249.92.174) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 17 Oct 2007 19:54:49 +0000 Received: by ug-out-1314.google.com with SMTP id h3so365589ugf for ; Wed, 17 Oct 2007 12:54:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; bh=6Y5ijmkurdBpHGB/bOQ3jL0VaO9JiUsrK3KR7HRXB2g=; b=b6vWqM+jJeKgKK21TaRdDhs2exMB4OaOR1sm+uzGRcLDnovI90QUX+lf82S6JcAC0ETwbACCD3lcrffURzr2lwXMUgmDXxu32paryY/MaNQVtI1ll5Ur6Un5xyIqlqCgm8j2ndfH/8spqPpbU174VHyeN8Btb4LC/DsAv3AU2BE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=nD6yfVS3+6BHzyVmA/Fu/6ynB7cH7AIcf7YOCW5pwrt3aCIa/ClTckH2072fZBW5zn9duC7K9QZ2DP7DPr42uiH8zUu+eIMJl/V+NP5osC0a3louJMcSoPfSLMtP9k1ylYaZxwShVow1H2KwRytwDKLvBYakqqXs7NczRRGC9zw= Received: by 10.67.25.6 with SMTP id c6mr962730ugj.1192650867795; Wed, 17 Oct 2007 12:54:27 -0700 (PDT) Received: by 10.67.91.6 with HTTP; Wed, 17 Oct 2007 12:54:27 -0700 (PDT) Message-ID: <1813a0570710171254i11b80be8q90123a084ecc4503@mail.gmail.com> Date: Wed, 17 Oct 2007 12:54:27 -0700 From: "Tiger Uppercut" To: hadoop-user@lucene.apache.org Subject: hadoop ec2 tutorial, cluster has no datanodes MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Virus-Checked: Checked by ClamAV on apache.org Hi, I'm using the Hadoop 0.14.1 AMI as my master node [ami-64f6130d], and I've followed up to "test your cluster" bit of the tutorial listed here: http://wiki.apache.org/lucene-hadoop/AmazonEC2 However, when I try to run the following command, $ bin/hadoop jar hadoop-*-examples.jar pi 10 10000000 I get an error "Failed to create file /user/root/test-mini-mr/in/part0 on client 127.0.0.1 because this cluster has no datanodes." Specifically: org.apache.hadoop.ipc.RemoteException: java.io.IOException: Failed to create file /user/root/test-mini-mr/in/part0 on client 127.0.0.1 because this cluster has no datanodes. at org.apache.hadoop.dfs.FSNamesystem.startFile(FSNamesystem.java:739) According to the following thread [ http://mail-archives.apache.org/mod_mbox/lucene-hadoop-user/200706.mbox/%3C466DA5DB.9070808@yahoo-inc.com%3E ], I need to check my ip-addresses. My dynDNS settings are as follows. hostname: something.webhop.org wildcard: true service type: host with IP address ip address: xx.yy.zz.aa webhop: http://ec2-xx-yy-zz-aa.z-1.compute-1.amazonaws.com/ For reference, my hadoop-site.xml file is: hadoop.tmp.dir /mnt/hadoop fs.default.name localhost:50001 mapred.job.tracker localhost:50002 Any tips would be very welcome...! Thanks! [I've also posted this to Amazon's EC2 forum.]