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divya_thaore
divya_thaore
Silver ⭐️⭐️⭐️
January 10, 2019
Solved

I am getting 502 Bad Gateway while loading the localhost:8080 ambari UI. Please suggest what could be the issue ?

I am getting a 502 Bad Gateway error when I try to load the Apache Ambari UI at localhost:8080.

Scharan
ScharanAnswer
Gold ⭐️
January 10, 2019

@Divya Thaore 502 Bad Gateway error is usually indicating a networking error, Try restart of the browser or try accessing from Incognito mode

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8 replies

divya_thaore
divya_thaoreAuthor
Silver ⭐️⭐️⭐️
January 10, 2019

@Jay Kumar SenSharma

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Scharan
Gold ⭐️
ScharanAnswer
Gold ⭐️
January 10, 2019

@Divya Thaore 502 Bad Gateway error is usually indicating a networking error, Try restart of the browser or try accessing from Incognito mode

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    divya_thaore
    divya_thaoreAuthor
    Silver ⭐️⭐️⭐️
    January 11, 2019

    @scharan : tried incognito too. not working.. i dont think it's browser issue

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    Scharan
    Gold ⭐️
    Scharan
    Gold ⭐️
    January 11, 2019

    @Divya Thaore Are you see any errors in Browser Inspect element , Also check ambari-server logs

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      Shelton
      Shelton
      Gold ⭐️⭐️⭐️
      January 14, 2019

      @Divya Thaore

      You are trying to access the sandbox:8080 from your laptop because localhost:8080 translates to your local windows machine. To be able to access sandbox ambari from your Windows machine, you should have an entry in your hosts file in C:\Windows\System32\drivers\etc with the format IP:FQDN:ALIAS for example


      # localhost name resolution is handled within DNS itself.
      #127.0.0.1 localhost
      #::1 localhost
      127.0.0.1 sandbox.hortonworks.com sandbox

      With the above entry assuming you sandbox IP is correctly you can access your cluster through

      http://sandbox:8080

      HTH

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      axie
      axie
      Silver ⭐️⭐️⭐️
      September 4, 2019

      Hi @Shelton 

       

      I followed your suggestion and modified HOSTS file in the C:\Windows\System32\drivers\etc on my Windows 7 machine where the VirtualBox/Sandbox is installed, it still prompts me the 502 error.

       

      Here are the hosts file:


      127.0.0.1 localhost
      ::1 localhost
      127.0.0.1 sandbox.hortonworks.com sandbox

       

      I used the Windows7 built-in Resource Monitor to inspect which application is using 8080, and it shows VirtualBox:

      port 8080 used by VirtualBox already

      Since VirtualBox is where the sandbox resides, there is no way for me to terminate it. How do I then access Ambari from localhost?

       

      Thank you very much if you can kindly help me to sort it out at your earliest convenience.

       

       

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      hiveravids2
      hiveravids2
      Silver ⭐️⭐️
      September 4, 2019

      instead of localhost try using the IP address of the server.  That should help

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