By any chance, are you running as root? If so, try running as a different user.
-Joey On Wed, Jun 15, 2011 at 12:53 PM, rutesh <rutesh.cha...@gmail.com> wrote: > Hi, > > I am new to hadoop (Just 1 month old). These are the steps I followed to > install and run hadoop-0.20.203.0: > > 1) Downloaded tar file from > http://mirrors.axint.net/apache/hadoop/common/hadoop-0.20.203.0/hadoop-0.20.203.0rc1.tar.gz. > 2) Untarred it in /usr/local/ . > 3) Set JAVA_HOME=/usr/lib/jvm/java-6-sun (which has already been installed) > 4) Modified the config files viz. core-site.xml , hdfs-site.xml and > mapred-site.xml as provided on the single node installation page [ > http://hadoop.apache.org/common/docs/r0.20.203.0/single_node_setup.html#PseudoDistributed]. > 5) Formatted the new distributed-filesystem using bin/hadoop namenode > -format > 6) Started the hdfs daemon using bin/start-dfs.sh > > Now, here is the error... > > # start-dfs.sh > starting namenode, logging to > /usr/local/hadoop/bin/../logs/hadoop-root-namenode-ip-10-98-94-62.out > localhost: starting datanode, logging to > /usr/local/hadoop/bin/../logs/hadoop-root-datanode-ip-10-98-94-62.out > localhost: starting secondarynamenode, logging to > /usr/local/hadoop/bin/../logs/hadoop-root-secondarynamenode-ip-10-98-94-62.out > > The terminal says that datanode has been started, but when I run jps > command, its shows different. > > # jps > 395 Jps > 32612 SecondaryNameNode > 32442 NameNode > > And in the /usr/local/hadoop/logs/hadoop-root-datanode-ip-10-98-94-62.out > this is the log: > > Unrecognized option: -jvm > Could not create the Java virtual machine. > > My question is, can anybody tell me what is the error or what am I doing > wrong, or in general, how I can make my datanode run? > > Thanks. > > With regards, > Rutesh Chavda > -- Joseph Echeverria Cloudera, Inc. 443.305.9434
