Ok, this is the first script I've ever attempted to write so go easy on me. I'm just trying to simple copy a tar.gz file from the directory the script is located to /usr/local/filename.tar.gz The script is run as root so it shouldn't be a permissions issue.
Despite an error specified on Error of start of the demon of Namenode with a log of errors me it was succeeded to execute a command
./hadoop fs - mkdir/user/hadoop
and to create the appropriate folder (that the command confirmed ./hadoop fs - lsr/).
IBM Developerworks: "This article�the first in a series on Hadoop�explores the Hadoop framework, including its fundamental elements, such as the Hadoop file system (HDFS), and node types that are commonly used."
I am following this tutorial.
http://hadoop.apache.org/docs/mapreduce/current/mapred_tutorial.html
javac -classpath ${HADOOP_HOME}/hadoop-core- ${HADOOP_VERSION}.jar:${HADOOP_HOME}/hadoop-mapred-${HADOOP_VERSION}.jar:${HADOOP_HOME}/hadoop-hdfs-${HADOOP_VERSION}.jar -d wordcount_classes
The hadoop version is 0.22.0 and this does not have a hadoop-core-0.22.0.jar though I find hadoop-hdfs-0.22.
I've setup Hadoop to use Kerberos (following the Cloudera security guide),
but it is unclear how I connect to hadoop with regular users (e.g.
username=myuser).
Currently I have myself authenticated with Kerberos with my Keberos
admin user (via kinit kerbadmin/admin), but that doesn't seem to
help. Do I need to tell Hadoop that kerberos user "kerbadmin" is
allowed to use Hadoop?
Hey guys Montana here,
I have configured Hadoop for single node cluster, when I run my URLS, the .jsp's they work which means Hadoop is working but upon booting Hadoop by formatting a new distributed filesystem
Code:
bin/hadoop namenode -format
I get an SSH error, but then when I actually start Hadoop
Code:
bin/start-dfs.sh
Which should also handle the "${HADOOP_CONF_DIR}&q
I am required to hack a single node hadoop "cluster" (cloudera psuedo-distributed) to be able to access it remotely. I have successfully installed hadoop and I have updated the localhost identifiers in the configs to the IP address of the machine. I can run hadoop fs -ls / and all is good. I have created a passphraseless key and I can ssh to the hadoop machine.
I am a newbie to the ubuntu OS. I am trying to install hadoop on an ubuntu 12.04LTS vm (on virtual box).
I created a group hadoop for the hadoop home directory - then I created a new user hduser and added it to that grp. I then changed my mind and gave my root user "aniruddha" privileges with "chown" to the hadoop folder.
here is a commercial open source company, Cloudera, that supports and evangelizes Hadoop, and mainstream organizations and businesses ranging from the New York Times to IBM are using it...