D42AutoDisc Client: Windows or Hyper V auto-discovery error messages

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    Rytis L

    D42AutoDisc Client v3.1.2 failing to get information about Windows Server 2012 VMs with error:

    Failed to get Vm details for host: ip = x.x.x.x Exception = Object reference not set to an instance of an object.

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    Raj Jalan

    Rytis,

    What is your license count? You can check from Tools > License. One reason might be the VM can't be added as you might have increased your license count.

    Please let us know.

    Thanks.

  • Avatar
    Rytis L

    This is trial license and I am trying to discover only 1 VM. On Windows 2008 R2 Hyper-V host it works without problems.

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    Raj Jalan

    Rytis,

    When trying to add an IP address for a VM, the auto-discovery client makes a GET API call to device42 instance to get the vm name in device42. This message means that the GET call didn't return any object which means either the VM was not added or auto-discovery client has trouble communicating with device42 instance. Also, in trial license you are limited to 50 devices only. How many devices you have added to your device42 instance?

    Thanks.

     

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    Rytis L

    1 VM host (WS 2008 R2) + 1 VM 2008 R2. And I am trying to add 1 VM host + VM (WS 2012). So total 4 devices.

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    Raj Jalan

    Lets do a webex to take a look. I will send a direct email to you in few minutes.

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    Matt Clark

    I am having the same problem that Rytis had when trying to discover a Windows 2012 server. I have tried both the D42 Autodiscovery tool and the Open discovery one that just saves a file of the results.

    I get the following message in the error log "Object reference not set to an instance of an object".

    Thanks.

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    Raj Jalan

    Matt,

    Sorry about that. One quick clarification - is the issue with discovering VMs on the 2012 Hyper V or discovering windows 2012 server without Hyper V?

    Thanks.

  • Avatar
    Matt Clark

    Raj,

    I am receiving this message whenever trying to discovery two Windows 2012 servers. One has the Hyper-V role and the other does not. I believe the opendiscover tool doesn't communicate back to the D42 appliance so I don't understand how not being able to communicate it would cause this error.

    Looking forward to your reply.

    Thanks,

    Matt

  • Avatar
    Raj Jalan

    Matt,

    OpenDiscovery Tool hasn't been updated in a while, and there is no support for 2012. However, Auto-discovery Tool should work with standalone 2012 server. There is a known bug with 2012 Hyper-V, which will be addressed in next release of the auto-discovery tool due soon.

    Thanks,

    Raj

     

  • Avatar
    Raj Jalan

    Hi,

    We have released the new version of the auto-discovery tool with much improved functionality: http://blog.device42.com/2014/09/a-ground-up-rewrite-of-the-net-tool-for-better-auto-discovery-with-v5-0-0/

    Please give it a try when you get chance and let us know.

    Thanks.

     

  • Avatar
    Eric Rosenberg

    Hello, please help with the following errors when we try to populate device42 with services via the auto-discovery tool:

    2016-01-07 10:34:58 [255WXT] [BaseWorker::Process] Exception: Posting Servcies to Device42 ==> Object reference not set to an instance of an object.

    2016-01-07 10:34:59 [255WXT] [WindowsWorker::RunRemoteCommand] Error connecting share connection object for mydomain.com\AdminUser@\mydomain.com\IPC$ code 2250

    2016-01-07 10:34:59 [255WXT] [WindowsWorker::RunRemoteCommand] Error connecting share connection object for mydomain.com\AdminUser@\mydomain.com\ADMIN$ code 2250

    2016-01-07 10:35:03 [255WXT] [BaseWorker::Process] Exception: Could not get Computer System info for mydomain.com ==> Could not find file 'C:\d42_netstat.txt'.

    Could not get Computer System info for mydomain.com Exception:Could not find file 'C:\d42_netstat.txt'.

    2016-01-07 10:35:03 [255WXT] [EventBase::InternalPublish] Could not get Computer System info for mydomain.com Exception:Could not find file 'C:\d42_netstat.txt'.

    2016-01-07 10:35:03 [255WXT] [EventBase::InternalPublish] Could not get Computer System info for mydomain.com Exception:Could not find file 'C:\d42_netstat.txt'.

    2016-01-07 10:35:03 [255WXT] [DiscoveryJob::ProcessJob] All tasks are completed

     

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