question Re: There is no way to get ambari UI after installation in Support Questions

There is no way to get ambari UI after installation

ManoogianDavid — Sun, 18 Mar 2018 01:15:38 GMT

I installed ambari and setup it with help this man: https://docs.hortonworks.com/HDPDocuments/Ambari-2.6.1.0/bk_ambari-installation/content/log_in_to_apache_ambari.html

I user virtualbox on which installed centos7.

I installed ambari-server, after I started it. It started with message "Server started listening on 8080". But I can't get ambariUI at all. My inet address in ifconfig -a is "inet 10.0.2.15". So I try to ping 10.0.2.15:8080 and it messages that no such service or server. After I tried to connect via browser, it's the same. I can't get AmbariUI and I don't know how to fix it. It seems to be easy but something went wrong. After ambari installation and starting it I checked log file and everything is fine. So what's the problem can't got it.

Thank you.

Re: There is no way to get ambari UI after installation

bandarusridhar1 — Sun, 18 Mar 2018 01:19:43 GMT

@David Manukian

Try to see if process if running or not

ps -ef | grep ambari-server

see whether port is lessoning

lsof -nalp | grep 8080

Then if everything is working as expected, the try with full qualified domain name like FQDN:8080

Hope this helps you.

Re: There is no way to get ambari UI after installation

ManoogianDavid — Sun, 18 Mar 2018 01:29:06 GMT

[root@localhost /]# ps -ef | grep ambari-server

root 1009113210 Mar16 pts/000:00:00 tail -f -n 1000 ambari-server.out

root 1031213210 Mar16 pts/000:00:00 tail -f -n 1000 ambari-server.log

root 1032313210 Mar16 pts/000:00:00 tail -f -n 500 ambari-server.pid

root 1032713210 Mar16 pts/000:00:00 tail -f -n 500 ambari-server.out

root 1034513210 Mar16 pts/000:00:00 tail -f -n 1000 ambari-server.out

root 1034613210 Mar16 pts/000:00:00 tail -f -n 1000 ambari-server.log

root 12840 13 00:50 pts/000:00:51 /usr/jdk64/jdk1.8.0_112/bin/java -server -XX:NewRatio=3 -XX:+UseConcMarkSweepGC -XX:-UseGCOverheadLimit -XX:CMSInitiatingOccupancyFraction=60 -XX:+CMSClassUnloadingEnabled -Dsun.zip.disableMemoryMapping=true -Xms512m -Xmx2048m -XX:MaxPermSize=128m -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/mysql-connector-java.jar org.apache.ambari.server.controller.AmbariServer

root 1383913210 01:13 pts/000:00:00 grep --color=auto ambari-server

Re: There is no way to get ambari UI after installation

ahadjidj — Sun, 18 Mar 2018 01:30:58 GMT

Hi @David Manukian

This seems to be a virtualbox network configuration issue. Check your port forwarding and add a rule for 8080.

Re: There is no way to get ambari UI after installation

ManoogianDavid — Sun, 18 Mar 2018 01:37:25 GMT

I added it

Re: There is no way to get ambari UI after installation

ManoogianDavid — Sun, 18 Mar 2018 01:39:01 GMT

Thank you for your answer. It doesn't work with FQDN.

[root@localhost /]# hostname -f

localhost

[root@localhost /]# ping localhost:8080

ping: localhost:8080: Name or service not known

Re: There is no way to get ambari UI after installation

ManoogianDavid — Sun, 18 Mar 2018 01:40:24 GMT

Thank you for your answer. It doesn't help. As well as I can't even to ping it.

Re: There is no way to get ambari UI after installation

Shelton — Sun, 18 Mar 2018 01:42:15 GMT

@David Manukian

Are you accessing the Ambari from your Virtual box host? If so make sure the VirtualBox IP entry is in your local host's file in C:\Windows\System32\drivers\etc assuming you are using windows.

In the below example my VirtualBox network setting is set to Bridged adapter so it picks my LAN network a class C

192.168.0.227  sandbox.hortonworks.com sandbox

So I can access my Ambari from my laptop using http://sandbox:8080

I think 10.0.2.15:8080 is only accessible if you are running firefox from the virtual box can you verify using curl

curl -u username:password -G http://ambari_server_ip:8080/api/v1/check

The desired output should be running that will confirm ambari is indeed accepting connections

Re: There is no way to get ambari UI after installation

Shelton — Sun, 18 Mar 2018 01:50:15 GMT

@David Manukian

Check this HCC learning rope link it should help you with the port forwarding that's the problem you are encountering

Re: There is no way to get ambari UI after installation

ManoogianDavid — Sun, 18 Mar 2018 04:35:47 GMT

I can get connect to virtual host from local. My virtualhost ip address is 192.168.0.75 and when I make ping from local host it works but when I try to add port 8080 for checking ambari it doesn't work and the browser the same situation. I tried to rich via curl in virtualbox as you suggested and it works.

Re: There is no way to get ambari UI after installation

ManoogianDavid — Sun, 18 Mar 2018 04:37:27 GMT

My networks is bridge-netowork and host-only as well. Neither bridge nor host-only doesn't allow me to make request from local machine

Re: There is no way to get ambari UI after installation

Shelton — Sun, 18 Mar 2018 04:41:57 GMT

@David Manukian

Can you share your local hosts entry, make sure you commented out the below

#127.0.0.1       localhost
#::1             localhost

Please revert

Re: There is no way to get ambari UI after installation

Shelton — Sun, 18 Mar 2018 05:49:40 GMT

@David Manukian

My previous hosts file was from my windows laptop I am not conversant with Macbooks 🙂

MacOSFirewall setting

Go to System Preferences, Security & Privacy, Firewall, Firewall Options...

see attached screenshot

Your ambari UI should be accessible

http://192.168.0.75:8080 or http://ambari.training:8080

Port forwarding

Quite simple to do, Firstly you will need to enable the remote login service on your mac (System Preferences -> Sharing -> Remote Login). This starts your ssh server. Then run the following command in your OS X Terminal: The format is thus basically:

ssh -L local_addr:local_port:remote_addr:remote_port -N 127.0.0.1

example

ssh -L 200.234.XXX.XXX:10000:10.211.55.5:80 -N 127.0.0.1

You may need to accept the server fingerprint initially as well as type in your local password for ssh login. (You can also set up a local to local ssh public/private key to make it not prompt for a password, but that it a different exercise.)

Re: There is no way to get ambari UI after installation

ManoogianDavid — Sun, 18 Mar 2018 06:49:11 GMT

My ssh works fine. The trouble in another. In virtualmachine curl works fine with port 8080, I really see it works. So, from local machine I make ping to virtualmachine and it works also but when I put port with host it doesnt work. I can't understand what's wrong it really makes me stupid lol. I even add hostonly network it means that no problem in communication localmachine to virtual but anyway with port it doesnt work.

Re: There is no way to get ambari UI after installation

ManoogianDavid — Sun, 18 Mar 2018 06:50:09 GMT

Noway to connect to ambari from local browser, just noway.

Re: There is no way to get ambari UI after installation

ManoogianDavid — Sun, 18 Mar 2018 06:51:27 GMT

Firewall and other gateway is off on my mac.

Re: There is no way to get ambari UI after installation

ManoogianDavid — Sun, 18 Aug 2019 07:45:45 GMT

it's via ssh in virtualbox. See that ambari works in virtualmachine but when I try to connect from local it doesn't see

Re: There is no way to get ambari UI after installation

Shelton — Sun, 18 Mar 2018 15:44:24 GMT

@David Manukian

That's the image I forgot to attach sorry

Re: There is no way to get ambari UI after installation

ManoogianDavid — Sun, 18 Mar 2018 19:42:21 GMT

It didn't help.

Re: There is no way to get ambari UI after installation

ManoogianDavid — Mon, 19 Mar 2018 03:02:16 GMT

The problem was because of iptables. I turn off it and it works with NAT (port forwarding)