Hi Charles, map/reduce(jobtracker/tasktrackers, localhost:50030) is based on hdfs(namenode/datanodes, localhost:50070) or local file system. It seems there is something wrong with the hdfs, so the map/reduce is blocked and shows INITIALIZING, please check the log of namenode( /usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-namenode-west-desktop.out ).
On Mon, Aug 27, 2012 at 5:03 PM, Charles AI <hadoo...@gmail.com> wrote: > Hi All, > I was running a cluster of one master and 4 slaves. I copied the > hadoop_install folder from the master to all 4 slaves, and configured them > well. > How ever when i sh start-all.sh from the master machine. It shows below: > > starting namenode, logging to > /usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-namenode-west-desktop.out > slave2: ssh: connect to host slave2 port 22: Connection refused > master: starting datanode, logging to > /usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-datanode-west-desktop.out > slave4: starting datanode, logging to > /usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-datanode-hadoop12.out > slave3: starting datanode, logging to > /usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-datanode-hadoop-desktop.out > slave1: starting datanode, logging to > /usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-datanode-kong-desktop.out > master: starting secondarynamenode, logging to > /usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-secondarynamenode-west-desktop.out > starting jobtracker, logging to > /usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-jobtracker-west-desktop.out > slave2: ssh: connect to host slave2 port 22: Connection refused > slave4: starting tasktracker, logging to > /usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-tasktracker-hadoop12.out > master: starting tasktracker, logging to > /usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-tasktracker-west-desktop.out > slave3: starting tasktracker, logging to > /usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-tasktracker-hadoop-desktop.out > slave1: starting tasktracker, logging to > /usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-tasktracker-kong-desktop.out > > I know that slave2 is not on. But that should not be the problem. After > this , I typed 'jps' in the master's shell, and it shows: > 6907 Jps > 6306 DataNode > 6838 TaskTracker > 6612 JobTracker > 6533 SecondaryNameNode > > And when I opened this link "localhost:50030",the page said : > master Hadoop Map/Reduce Administration > Quick Links <http://master:50030/jobtracker.jsp#quicklinks> > *State:* INITIALIZING > *Started:* Mon Aug 27 14:54:46 CST 2012 > *Version:* 0.20.2, r911707 > *Compiled:* Fri Feb 19 08:07:34 UTC 2010 by chrisdo > *Identifier:* 201208271454 > > I don't quite get what the "State : INITIALIZING" means. Additionally, i > cannot open "localhost:50070". > > So, Any suggestions ? > > Thanks in advance. > CH > -- > in a hadoop learning cycle >
