http://localhost:50070 does not work HADOOP

Question

I already installed Hadoop on my machine \"Ubuntu 13.05\" and now I have an error when browsing localhost:50070 the browser says that the page does not exist.

Answer 1

Enable the port in your system it is for CentOS 7 flow the commands below

1.firewall-cmd --get-active-zones

2.firewall-cmd --zone=dmz --add-port=50070/tcp --permanent

3.firewall-cmd --zone=public --add-port=50070/tcp --permanent

4.firewall-cmd --zone=dmz --add-port=9000/tcp --permanent

5.firewall-cmd --zone=public --add-port=9000/tcp --permanent 6.firewall-cmd --reload

Answer 2

First, check that java processes that are running using "jps". If you are in a pseudo-distributed mode you must have the following proccesses:

• Namenode
• Jobtracker
• Tasktracker
• Datanode
• SecondaryNamenode

If you are missing any, use the restart commands:

$HADOOP_INSTALL/bin/stop-all.sh
$HADOOP_INSTALL/bin/start-all.sh

It can also be because you haven't open that port on the machine:

iptables -A INPUT -p tcp --dport 50070 -j ACCEPT

Answer 3

First all need to do is start hadoop nodes and Trackers, simply by typing start-all.sh on ur terminal. To check all the trackers and nodes are started write 'jps' command. if everything is fine and working, go to your browser type the following url http://localhost:50070

Answer 4

For recent hadoop versions (I'm using 2.7.1)

The start\stop scripts are located in the sbin folder. The scripts are:

• ./sbin/start-dfs.sh
• ./sbin/stop-dfs.sh
• ./sbin/start-yarn.sh
• ./sbin/stop-yarn.sh

I didn't have to do anything with yarn though to get the NameNodeServer instance running.

Now my mistake was that I didn't format the NameNodeServer HDFS.

bin/hdfs namenode -format

I'm not quite sure what that does at the moment but it obviously prepares the space on which the NameNodeServer will use to operate.

Answer 5

Try

namenode -format
start-all.sh
stop-all.sh
jps

see namenode and datanode are running and browse

localhost:50070

If localhost:50070 is still not working, then you need to allows ports. So, check

netstat -anp | grep 50070

Answer 6

There is a similar question and answer at: Start Hadoop 50075 Port is not resolved

Take a look at your core-site.xml file to determine which port it is set to. If 0, it will randomly pick a port, so be sure to set one.