Thanks for the tip , I'll try it right away. But a quick clarification, what I did is remotely connect to one node and mark it as a master and slave. Then, before starting Hadoop, 'jps' will show only 'jps' but after starting hadoop 'jps' will show all the hadoop deamons. Isn't this a clean start??
Maha On Dec 28, 2010, at 6:02 PM, Sudhir Vallamkondu wrote: > I recently had this issue. UI links were working for some nodes meaning when > I go to dfsHealth.jsp page and following some cluster data node links some > would work and some would show a 404 error. > > I started tracing them all the way from the listening ports. Data nodes port > is 50010 so do a netsat on that port to find what process is listening in. > Then check that process to see if its the data node. The issue I had was > somehow when I did the hadoop upgrade I had a older instance and a new > instance of data node running and it was all messed up so I had to kill all > hadoop processes and do a clean start. > > > On 12/27/10 9:22 PM, "common-user-digest-h...@hadoop.apache.org" > <common-user-digest-h...@hadoop.apache.org> wrote: > >> From: Harsh J <qwertyman...@gmail.com> >> Date: Tue, 28 Dec 2010 09:51:11 +0530 >> To: <common-user@hadoop.apache.org> >> Subject: Re: UI doesn't work >> >> I remember facing such an issue with the JT (50030) once. None of the >> jsp pages would load, 'cept the index. It was some odd issue with the >> webapps not getting loaded right while startup. Don't quite remember >> how it got solved. >> >> Did you do any ant operation on your release copy of Hadoop prior to >> starting it, by the way? >> >> On Tue, Dec 28, 2010 at 5:15 AM, maha <m...@umail.ucsb.edu> wrote: >>> Hi, >>> >>> I get Error 404 when I try to use hadoop UI to monitor my job execution. >>> I'm >>> using Hadoop-0.20.2 and the following are parts of my configuration files. >>> >>> in Core-site.xml: >>> <name>fs.default.name</name> >>> <value>hdfs://speed.cs.ucsb.edu:9000</value> >>> >>> in mapred-site.xml: >>> <name>mapred.job.tracker</name> >>> <value>speed.cs.ucsb.edu:9001</value> >>> >>> >>> when I try to open: http://speed.cs.ucsb.edu:50070/ I get the 404 Error. >>> >>> >>> Any ideas? >>> >>> Thank you, >>> Maha >>> >>> >> >> >> >> -- >> Harsh J >> www.harshj.com > > > iCrossing Privileged and Confidential Information > This email message is for the sole use of the intended recipient(s) and may > contain confidential and privileged information of iCrossing. Any > unauthorized review, use, disclosure or distribution is prohibited. If you > are not the intended recipient, please contact the sender by reply email and > destroy all copies of the original message. > >
