Ok. Many thanks shall try Sent from my iPhone
> On 02-Apr-2015, at 7:48 am, Kumar Jayapal <[email protected]> wrote: > > $which java > > make sure the paths are valid for your installation (change if using 32bit > version): > /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java > > /usr/lib/jvm/java-6-openjdk-amd64/bin/javac > Setup update-alternatives: > > sudo update-alternatives --install "/usr/bin/java" "java" > "/usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java" 1 > sudo update-alternatives --install "/usr/bin/javac" "javac" > "/usr/lib/jvm/java-6-openjdk-amd64/bin/javac" 1 > > sudo update-alternatives --set java > /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java > sudo update-alternatives --set javac > /usr/lib/jvm/java-6-openjdk-amd64/bin/javac > Alternatively, make sure the correct version is checked for both Java and > compiler: > > sudo update-alternatives --config java > sudo update-alternatives --config javac > List the installed Java alternatives with: > > sudo update-alternatives --list java > sudo update-alternatives --list javac > >> On Wed, Apr 1, 2015 at 10:35 AM, Ravindra Kumar Naik <[email protected]> >> wrote: >> Hi, >> >> Creating batch program will not have the same effect. If you put the >> variables in /etc/environment then it will be available to all users on the >> operating system. HDFS doesn't run with root privileges. >> You need to open the application with sudo or with root privileges to modify >> it. >> e.g. If you are using vi editor then its just sudo vim /etc/environment >> (similar, if you are using other editors) and add environment variables >> there. >> >> >>> On Wed, Apr 1, 2015 at 7:38 PM, Anand Murali <[email protected]> wrote: >>> Mr. Ravindra: >>> >>> This is visible, however I am unable to modify it, eventhough I have admin >>> priveleges. I am new to the Linux environment. Shall be glad if you did >>> advise. However, as I told you earlier, I have created a batch program >>> which contains, JAVA_HOME setting, HADOOP_INSTALL setting and PATH setting. >>> I have rfun this file but I am still unable to start the daemons. I am >>> following Tom Whyte's -Hadoop definitive Guide book instructions on how to >>> install Hadoop. >>> >>> at $hadoop version works. I am able to format namenode, but fail to start >>> daemons. >>> >>> Reply most welcome. >>> >>> Thanks >>> >>> Anand Murali >>> 11/7, 'Anand Vihar', Kandasamy St, Mylapore >>> Chennai - 600 004, India >>> Ph: (044)- 28474593/ 43526162 (voicemail) >>> >>> >>> >>> On Wednesday, April 1, 2015 7:04 PM, Ravindra Kumar Naik >>> <[email protected]> wrote: >>> >>> >>> Are you sure that its not there, could you please check the output of this >>> command >>> >>> ls /etc/env* >>> >>> >>> >>> On Wed, Apr 1, 2015 at 6:55 PM, Anand Murali <[email protected]> wrote: >>> Mr. Ravindra: >>> >>> I am using Ubuntu 14. Can you please provide the full path. I am logged in >>> as root and it is not found in /etc. In any case what you have suggested I >>> have tried creating a batch file and it does not work in my installation. >>> >>> Thanks >>> >>> >>> >>> Anand Murali >>> 11/7, 'Anand Vihar', Kandasamy St, Mylapore >>> Chennai - 600 004, India >>> Ph: (044)- 28474593/ 43526162 (voicemail) >>> >>> >>> >>> On Wednesday, April 1, 2015 6:50 PM, Ravindra Kumar Naik >>> <[email protected]> wrote: >>> >>> >>> I meant /etc/environment. It should be present if you are using Ubuntu. >>> >>> Regards, >>> Ravindra >>> >>> On Wed, Apr 1, 2015 at 6:39 PM, Anand Murali <[email protected]> wrote: >>> Mr. Ravindra >>> >>> I dont find any etc/environment. Can you be more specific please. I have >>> done whatever you are saying in a user created batch program and run it, >>> followed by running hadoop-env.sh and it still does not work. >>> >>> Thanks >>> >>> Anand Murali >>> 11/7, 'Anand Vihar', Kandasamy St, Mylapore >>> Chennai - 600 004, India >>> Ph: (044)- 28474593/ 43526162 (voicemail) >>> >>> >>> >>> On Wednesday, April 1, 2015 6:10 PM, Ravindra Kumar Naik >>> <[email protected]> wrote: >>> >>> >>> Hi, >>> >>> If you are using Ubuntu then add these lines to /etc/environment >>> JAVA_HOME=<actual path to jdk> >>> PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:$JAVA_HOME/bin" >>> >>> Please put the actual path to JDK in the first line. >>> >>> Regards, >>> Ravindra >>> >>> >>> On Wed, Apr 1, 2015 at 5:50 PM, roland.depratti <[email protected]> >>> wrote: >>> Anand, >>> >>> Sorry about that, I was assuming Redhat/Centos. >>> >>> For Ubuntu, try sudo update-alternatives --config java. >>> >>> >>> >>> Sent from my Verizon Wireless 4G LTE smartphone >>> >>> >>> -------- Original message -------- >>> From: Anand Murali <[email protected]> >>> Date: 04/01/2015 7:22 AM (GMT-05:00) >>> To: [email protected] >>> Subject: Re: Hadoop 2.6 issue >>> >>> Dear Mr.Roland: >>> >>> The alternatives command errors out. I have the extracted version of the >>> Oracle JDK7. However I am ignorant regarding its installation on Ubuntu. >>> Can you point me to installation material so that I can look up and try. >>> >>> Thanks >>> >>> Regards, >>> >>> Anand Murali >>> 11/7, 'Anand Vihar', Kandasamy St, Mylapore >>> Chennai - 600 004, India >>> Ph: (044)- 28474593/ 43526162 (voicemail) >>> >>> >>> >>> On Wednesday, April 1, 2015 4:33 PM, Roland DePratti >>> <[email protected]> wrote: >>> >>> >>> Anand, >>> >>> My guess is that your alternatives setup isn’t complete. >>> >>> At a prompt, as su, run the command ‘alternatives - - config java’. Make >>> sure that the oracle version is listed and is marked as the active one. >>> >>> If it is not, go through the steps to make sure it is. >>> >>> - rd >>> >>> From: Anand Murali [mailto:[email protected]] >>> Sent: Wednesday, April 01, 2015 5:42 AM >>> To: [email protected] >>> Subject: Re: Hadoop 2.6 issue >>> >>> I continue to get the samede error.I >>> >>> export JAVA_HOME=/home/anand_vihar/jdk1.0.7_u75 (in hadoop-env.sh) >>> >>> >>> when I echo $JAVA_HOME it shows me the above path but when I $java >>> -version, it gives me openjdk version >>> >>> start-dfs.sh ....... errors out saying JAVA_HOME not set., but echo shows >>> JAVA_HOME. Strange !! >>> >>> >>> Regards, >>> >>> Anand Murali >>> 11/7, 'Anand Vihar', Kandasamy St, Mylapore >>> Chennai - 600 004, India >>> Ph: (044)- 28474593/ 43526162 (voicemail) >
