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Davidsfs's avatar
Davidsfs
Level 4
8 years ago

GENERAL ERROR: "Unable to obtain display for device monitor, Error:java.lang.nullpointer.exception"

Hi, how are you.

I have a problem opening the netbackup console I get this

GENERAL ERROR: "Unable to obtain display for device monitor, Error:java.lang.nullpointer.exception" is displayed when clicking on Device Monitor in the Windows Netbackup Java GUI.

I already did the article steps.

 Update the java version on the server master.         Java version "1.8.0_131"

I can see the menus but on media I can not make a Inventory Robot

The server master is Linux Red hat. 6.1

Version de netbackup is 7.7.1

Linux
  • Marianne's avatar
    Marianne
    8 years ago

    Has this worked fine before? 
    If so, when did it stop working?

    If it was working fine before and nothing was changed in NBU, then it remains a valid question - what has changed in the environment?

    Can you confirm that port 1556 is open in both directions between the master and Windows desktops?
    Is Windows firewall disabled on the desktops?
    Is iptables stopped and disabled on the master?

    Is there a chance you can upgrade to 7.7.3 or 8.0?

     

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  • Thiago_Ribeiro's avatar
    Thiago_Ribeiro
    Moderator
    8 years ago

    Hi,

    Take a look this TNs.

    From NetBackup 7.7.1 Late Breaking News - Did you already apply this EEB??

    Fixed in 7.7.2: (ET 3853951) Downloadable Fix: An Emergency Engineering Binary (EEB) is available for NetBackup 7.7.1 which resolves nbsl communication issues in the Java GUI. - https://www.veritas.com/docs/000099899


    From NetBackup 7.7.1 Release Notes - Could be apply to your environment?

    Using X forwarding to launch the NetBackup Administration Console can fail on certain Linux platforms Using X forwarding to launch the NetBackup Administration Console can fail on certain Linux platforms, particularly Red Hat Enterprise Linux 6.0 (RHEL 6.0) on
    VMware. The issue is a result of incompatibilities between the default GNU C Library (glibc) and Advanced Vector Extensions (AVX) on newer hardware. The issue should be fixed in a future release of glibc. NetBackup administration and general operational notes
    Workaround: Run the export LD_BIND_NOW=1 command before you execute runInstaller

    https://www.veritas.com/support/en_US/article.DOC8511

    Regards,

    Thiago Ribeiro

    • Davidsfs's avatar
      Davidsfs
      Level 4
      8 years ago

      Ok thanks  Thiago  .i'll do the steps, i hope it solves the problem