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  1. Jira Service Management Data Center
  2. JSDSERVER-13651

IP range and IP subnet scan fails on Assets Discovery 3.1.9

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      Issue Summary

      Assets Discovery scan fails with "Object reference not set to an instance of an object" error.

      This is reproducible on Data Center: (yes)

      Steps to Reproduce

       
      Whenever a scan is executed with an IP range or an IP subnet, the scan fails in the host, the log shows:

      27/06/2023 16:29:03: [Normal] Object reference not set to an instance of an object.
   at Insight.Discovery.ProviderClasses.AssetProvider.GetHostInfoResultByKnownCredentials(List`1 knownCredentials, Int32 ttl, HostInfoDto additionalData, String ip) in C:\build\DISCOVERY-DISCOVERYCLOUDRELEASE127-BUILD\ProviderClasses\AssetProvider.cs:line 221
   at Insight.Discovery.ProviderClasses.AssetProvider.GetHostInfo(String ip, Int32 port, Boolean usePowerShell, Int32 ttl, Boolean autoAddSudo, List`1 enabledPatternFiles, List`1 disabledPatternFiles, String scanSettingsEntryId, Boolean basicHostInfo) in C:\build\DISCOVERY-DISCOVERYCLOUDRELEASE127-BUILD\ProviderClasses\AssetProvider.cs:line 136
      • The mentioned path, C:\build\DISCOVERY-DISCOVERYCLOUDRELEASE127-BUILD\ProviderClasses\AssetProvider.cs doesn't exist in the machine running Discovery
      • The credentials test ok.
      • If the scan is done with a single IP, or placing the IPs separated by a semicolon the scan works properly.
      • Same scan settings on 3.1.8 work fine.

      Expected Results

      Scan to complete properly.

      Actual Results

      The below exception is thrown in the discovery log file:

      27/06/2023 16:29:03: [Error] Error scanning host
27/06/2023 16:29:03: [Normal] Exceptions:
27/06/2023 16:29:03: [Normal] Object reference not set to an instance of an object.
   at Insight.Discovery.ProviderClasses.AssetProvider.GetHostInfoResultByKnownCredentials(List`1 knownCredentials, Int32 ttl, HostInfoDto additionalData, String ip) in C:\build\DISCOVERY-DISCOVERYCLOUDRELEASE127-BUILD\ProviderClasses\AssetProvider.cs:line 221
   at Insight.Discovery.ProviderClasses.AssetProvider.GetHostInfo(String ip, Int32 port, Boolean usePowerShell, Int32 ttl, Boolean autoAddSudo, List`1 enabledPatternFiles, List`1 disabledPatternFiles, String scanSettingsEntryId, Boolean basicHostInfo) in C:\build\DISCOVERY-DISCOVERYCLOUDRELEASE127-BUILD\ProviderClasses\AssetProvider.cs:line 136
27/06/2023 16:29:03: [Normal] Finish scan for 192.168.1.9

      Workaround

      Use Assets Discovery 3.1.8.

              11507b174037 Zakhar Listiev (Inactive)
              09affdc70f32 Sergio Soto Lopez (Inactive)
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                Created:
                Updated:
                Resolved: