Not to divert the question here. I would like to know how we should manage the cluster users (I am a newbie)? insead of having one user(hadoop) creds shared?
Thanks Mitra. On Thu, Jun 30, 2011 at 4:23 PM, Paul Rimba <[email protected]> wrote: > sudo chown -R hadoop:hadoop /usr/local/hadoop. > That will give the directory ownership over to your hadoop account. > > On Fri, Jul 1, 2011 at 5:07 AM, Dhruv Kumar <[email protected]> wrote: > > > It is a permission issue. Are you sure that the account "hadoop" has read > > and write access to /usr/local/* directories? > > > > The installation of Hadoop has always been effortless for me. Just follow > > the instructions step by step given on: > > http://hadoop.apache.org/common/docs/stable/single_node_setup.html > > > > > > > > > > On Thu, Jun 30, 2011 at 11:08 AM, Ashish Tamrakar > > <[email protected]>wrote: > > > > > I am having a problem starting my hadoop. i setup my for my single-node > > > cluster. please help me to solve this out!!!! > > > > > > hadoop@ashishpc:~$ /usr/local/hadoop/bin/start-all.sh > > > starting namenode, logging to > > > /usr/local/hadoop/bin/../logs/hadoop-hadoop-namenode-ashishpc.out > > > /usr/local/hadoop/bin/hadoop-daemon.sh: line 117: > > > /usr/local/hadoop/bin/../logs/hadoop-hadoop-namenode-ashishpc.out: > > > Permission denied > > > head: cannot open > > > `/usr/local/hadoop/bin/../logs/hadoop-hadoop-namenode-ashishpc.out' for > > > reading: No such file or directory > > > localhost: starting datanode, logging to > > > /usr/local/hadoop/bin/../logs/hadoop-hadoop-datanode-ashishpc.out > > > localhost: /usr/local/hadoop/bin/hadoop-daemon.sh: line 117: > > > /usr/local/hadoop/bin/../logs/hadoop-hadoop-datanode-ashishpc.out: > > > Permission denied > > > localhost: head: cannot open > > > `/usr/local/hadoop/bin/../logs/hadoop-hadoop-datanode-ashishpc.out' for > > > reading: No such file or directory > > > localhost: starting secondarynamenode, logging to > > > > > > /usr/local/hadoop/bin/../logs/hadoop-hadoop-secondarynamenode-ashishpc.out > > > localhost: /usr/local/hadoop/bin/hadoop-daemon.sh: line 117: > > > > > > /usr/local/hadoop/bin/../logs/hadoop-hadoop-secondarynamenode-ashishpc.out: > > > Permission denied > > > localhost: head: cannot open > > > > > > > > > `/usr/local/hadoop/bin/../logs/hadoop-hadoop-secondarynamenode-ashishpc.out' > > > for reading: No such file or directory > > > starting jobtracker, logging to > > > /usr/local/hadoop/bin/../logs/hadoop-hadoop-jobtracker-ashishpc.out > > > /usr/local/hadoop/bin/hadoop-daemon.sh: line 117: > > > /usr/local/hadoop/bin/../logs/hadoop-hadoop-jobtracker-ashishpc.out: > > > Permission denied > > > head: cannot open > > > `/usr/local/hadoop/bin/../logs/hadoop-hadoop-jobtracker-ashishpc.out' > for > > > reading: No such file or directory > > > localhost: starting tasktracker, logging to > > > /usr/local/hadoop/bin/../logs/hadoop-hadoop-tasktracker-ashishpc.out > > > localhost: /usr/local/hadoop/bin/hadoop-daemon.sh: line 117: > > > /usr/local/hadoop/bin/../logs/hadoop-hadoop-tasktracker-ashishpc.out: > > > Permission denied > > > localhost: head: cannot open > > > `/usr/local/hadoop/bin/../logs/hadoop-hadoop-tasktracker-ashishpc.out' > > for > > > reading: No such file or directory > > > > > > -- ________________________________________ To Understand Recursion, You must first Understand Recursion ________________________________________
