Apache Ambari not starting in hortonworks sandbox

Question

I am playing with hortonworks sandbox, but I am not able to get Apache Ambari to work.

As you can see, when accessing the welcome page of the Hortonworks sandbox, I get a message saying:

Service disabled by default. To enable the service you need to log in as an ambari admin. The ambari admin password can be set by ssh'ing into the vm as root as mentioned in the section "Secure Shell (SSH) Client". Once logged in as root user, execute ambari-admin-password-reset and follow the prompt

I did that but still, when I access the link: 127.0.0.1:8080 it's not working. I checked that the ambari-server is running:

[root@sandbox ~]# service ambari-server status
Using python  /usr/bin/python2
Ambari-server status
Ambari Server running
Found Ambari Server PID: 1497 at: /var/run/ambari-server/ambari-server.pid

I checked within the Hortonworks sandbox to confirm that Ambari Server is listening to port number 8080

[root@sandbox ~]# netstat -anop | grep 8080 
tcp        0      0 0.0.0.0:8080                0.0.0.0:*                   LISTEN      6320/java           off (0.00/0/0)
[root@sandbox ~]# 
[root@sandbox ~]# 
[root@sandbox ~]# ps aux | grep 6320
root      6320  9.0  4.9 4596612 398396 pts/0  Sl   05:28   3:43 /usr/lib/jvm/java/bin/java -server -XX:NewRatio=3 -XX:+UseConcMarkSweepGC -XX:-UseGCOverheadLimit -XX:CMSInitiatingOccupancyFraction=60 -Dsun.zip.disableMemoryMapping=true -Xms512m -Xmx2048m -Djava.security.auth.login.config=/etc/ambari-server/conf/krb5JAASLogin.conf -Djava.security.krb5.conf=/etc/krb5.conf -Djavax.security.auth.useSubjectCredsOnly=false -Xms512m -Xmx2048m -Djava.security.auth.login.config=/etc/ambari-server/conf/krb5JAASLogin.conf -Djava.security.krb5.conf=/etc/krb5.conf -Djavax.security.auth.useSubjectCredsOnly=false -cp /etc/ambari-server/conf:/usr/lib/ambari-server/*:/usr/share/java/postgresql-jdbc.jar org.apache.ambari.server.controller.AmbariServer
root      8750  0.0  0.0   8452   908 pts/0    S+   06:09   0:00 grep 6320
[root@sandbox ~]#

The iptables firewall is not running:

#service iptables status 
iptables: Firewall is not running.

The port forwarding from Guest to Host is set right

How to resolve this?

Rajendra Patil Rajendra Patil · Accepted Answer · 2016-04-07T07:24:56

Check if the firewall in your sandbox is preventing it.

[..]# service iptables status

And then try accessing it after stopping iptables.

[..]# service iptables stop

If that too doesn't help, do check the port-forwarding settings of your Virtual Box (I assume you using Virtual Box).

Apache Ambari not starting in hortonworks sandbox

4 Answers