I cant connect to ambari dashboard

[#1]

Hi all,

i am new, and i have problems to log with ambari dashboard.

I am using VM of sandboox 2.2.4.2 and i have asigned 4 gb of RAM to VM. My friend used this ram and he doesnt problems.

I used puTTy for connect to my VM, with root 127.0.0.1 and port 2222.

I installed all, and when i try to connect to ambari dashboard i have "Loading" in the page (several hours) and i am not able to connect.

I prove the next:

i) ambari-server status-----> Running

ii) ambari-agent status------> Running

iii) service postgresql status---> Running

iv) Service iptables status------> Firewall not running

v) sestatus ---------------------> Disable

vi) netstat -pan | grep 8080 ---------------------> Listen port 8080

vii) ifconfig --------------> eth (10.0.2.15)--lo(127.0.01)----Running

viii) Prove in others navigators too (Mozilla, Internet Explorer, Chrome)

But my picture during hours is:

Can be the memory ram? or the navigator that block the ip? I dont know why this problem exist!

Thank you very much

[#2]

@Juan Gonzalez

This might happen mostly due to memory constraints.

I will suggest , stopping / killing some of the components running on the Sandbox (kill -9 $HIVE_SERVER2_PID) or some other service components like HBase and then restart the ambari server again to see if it works. You can access the browser console to access the terminal http://localhost:4200 or use the SSH (ssh -p 2222 root@localhost). Once you are able to access the ambari UI then you can either put those unwanted components in Maintenance Mode or increase the RAM.

Also please try using "Incognito Mode" of browser to avoid any browser caching issue.

If you notice any WARNING / ERROR in "/var/log/ambari-server/ambari-server.log" then please share.

[#3]

Thank you very much for your response,

when i try to access to http://127.0.0.1:4200 , i guess this is http://localhost:4200, i have message of You can not access this website , connection refused.

Sorry , because i have very little knowledge in networks!!

Thank you very much again!!

[#4]

@Juan Gonzalez

I just noticed that your Sandbox version is bit old "sandbox 2.2.4.2" so it might not have the 4200 (Web Terminal functionality).

In that case you will have to try killing those processes using terminal:

# ssh root@localhost -p 2222
Enter Password: hadoop

.

[#5]

I tried your command "ssh root@127.0.0.1 -p 2222" but i obtain message:

ssh: connect to host 127.0.0.1 port 2222: Connection refused

It is rare!

Thank you very much and sorry for the time!

[#6]

Sorry again,

i think that maybe i have problem in connection, because i cant enter to ambari dashboard and i cant conect with code because the error is "Connection refused",

I tried see log, but when i use "/var/log/ambari-server/ambari-server.log, i have message "Permission denied".

I dont understand!!

Thank you very much!!

[#7]

Hi, can someone help me please?

i cant enter to dashboard of ambari.

Thank you very much!!

[#8]

@Juan Gonzalez

Did you run the below command at any stage ?

# ambari-admin-password-reset

If not please do it and retry usual default is admin/admin

[#9]

Thank you very much,

i am going to apply your command. I am repeat all the steps again!

[#10]

@Juan Gonzalez

Here is a link to solutions with issue pertaining to sandboxes

Keep me posted