From general-return-234-apmail-hadoop-general-archive=hadoop.apache.org@hadoop.apache.org Tue May 19 22:34:57 2009 Return-Path: Delivered-To: apmail-hadoop-general-archive@minotaur.apache.org Received: (qmail 6789 invoked from network); 19 May 2009 22:34:57 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 19 May 2009 22:34:57 -0000 Received: (qmail 73681 invoked by uid 500); 19 May 2009 22:35:07 -0000 Delivered-To: apmail-hadoop-general-archive@hadoop.apache.org Received: (qmail 73589 invoked by uid 500); 19 May 2009 22:35:07 -0000 Mailing-List: contact general-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: general@hadoop.apache.org Delivered-To: mailing list general@hadoop.apache.org Received: (qmail 73569 invoked by uid 99); 19 May 2009 22:35:07 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 19 May 2009 22:35:07 +0000 X-ASF-Spam-Status: No, hits=2.2 required=10.0 tests=HTML_MESSAGE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of p0941p@gmail.com designates 74.125.44.30 as permitted sender) Received: from [74.125.44.30] (HELO yx-out-2324.google.com) (74.125.44.30) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 19 May 2009 22:34:57 +0000 Received: by yx-out-2324.google.com with SMTP id 8so55641yxm.29 for ; Tue, 19 May 2009 15:34:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=nNKtyHdHmnsmVgvHH1E0pcmUqC4StC5Emmezqo01CrQ=; b=MrD52LCwJqdIg9secwU9eltC1NpOwN1YOvcOmKNoBaq+wT/9aTVTUDxykucx7s6qU3 IaqAHTfDO3N/szmr4zvXeIhS8mACqgMv35N2bCCJ3C99cZnLIwr2O3RJIYWSh8AJjuTw j3OwoSyCEKwRXcq4Qhw822wOVUC1A1QXGwxaI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=mKFdNJarlUqMkmpHDsfOUFsj9ExLb898m3gA22TqSRUiZjtaURGib9TSQcTk+D4/Nd ljopbTQMYr9jWQku8Mvdq66Xc5+83/6Sk9rKmg7PN1bfCwyeQ0bz3sR/5muAA37MpRSJ CVEVUnwccI5eKAxBqfHGc4lz+kdaPcm/CILuA= MIME-Version: 1.0 Received: by 10.151.134.9 with SMTP id l9mr1152208ybn.240.1242772476757; Tue, 19 May 2009 15:34:36 -0700 (PDT) In-Reply-To: <9c39bdeb0905191449x256cb2f1pb6d40caee9459934@mail.gmail.com> References: <9c39bdeb0905191449x256cb2f1pb6d40caee9459934@mail.gmail.com> Date: Tue, 19 May 2009 15:34:36 -0700 Message-ID: <9c39bdeb0905191534q5e9234a0hbe388121357b2f7c@mail.gmail.com> Subject: Re: DFS Access Error From: George Pang To: general@hadoop.apache.org, core-user@hadoop.apache.org Content-Type: multipart/alternative; boundary=001e680f10e00384f2046a4b84b5 X-Virus-Checked: Checked by ClamAV on apache.org --001e680f10e00384f2046a4b84b5 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit I made a mistake on misplacing the port no. for MR master with HDFS master. After correcting that, it works. George 2009/5/19 George Pang > Dear Users, > > When I tried to access the DFS, an error message apears: > > Error: java.io.IOException: Unknown protocol to job tracker: > org.apache.hadoop.dfs.ClientProtocol > at > org.apache.hadoop.mapred.jobTracker.getProtocolVersion(JobTracker.java:163) > at sun.reflec.NativeMethodAccessorimpl.invoke0(Native Method) > at > sun.reflec.NativeMethodAccessorimpl.invoke0(NativeMethodAccessorimpl.java:39) > at > sun.reflec.NativeMethodAccessorimpl.invoke0(DelegatingMethodAccessorimpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:481) > at org.apache.hadoop.ipc.Server$Handler.run(Server:java:890) > > Hadoop version: 0.18.3 > > I'd appreciate your opinion! > > George > --001e680f10e00384f2046a4b84b5--