QDS Distribution Failed

[#1]

Upgraded the Server last night to 11.2 SR6 from 11.2 SR4 .

All the reload tasks are recreated and the automated tasks are not reloading at the specified trigger and if reloaded i am getting the below error message any help is really appretiated.

Thanks

(2014-12-11 21:12:21) Information: Document distribution done.

(2014-12-11 21:12:21) Error: The task "XX" failed. Exception:

(2014-12-11 21:12:21) Error: QDSMain.Exceptions.DistributionFailedException: Distribute failed with errors to follow. ---> QDSMain.Exceptions.DistributeToResourcesFailedException: Distribute to resource failed. ---> System.NullReferenceException: Object reference not set to an instance of an object.

(2014-12-11 21:12:21) Error: at QDSMain.QlikViewServerDistributionResource.Distribute(ILogBucket i_LogBucket, DistributionRequest i_DistributionRequest)

(2014-12-11 21:12:21) Error: at QDSMain.DistributeTask.DistributeStreamToResources(Int32 round, Distribution distribution, IEnumerable`1 distributionResources)

(2014-12-11 21:12:21) Error: --- End of inner exception stack trace ---

(2014-12-11 21:12:21) Error: at QDSMain.DistributeTask.DistributeStreamToResources(Int32 round, Distribution distribution, IEnumerable`1 distributionResources)

(2014-12-11 21:12:21) Error: at QDSMain.DistributeTask.DistributionExecution(String fileName, Document qvbDocument, DistributionRequest distributionRequest, TaskResult taskResult, String repeatVariableName, String currentRepeatVariableValue)

(2014-12-11 21:12:21) Error: at QDSMain.DistributeTask.Distribution(String fileName, DistributionRequest distributionRequest, TaskResult taskResult, String repeatVariableName, String currentRepeatVariableValue)

(2014-12-11 21:12:21) Error: at QDSMain.DistributeTask.Execute(TaskResult currentTaskResult)

(2014-12-11 21:12:21) Error: --- End of inner exception stack trace ---

(2014-12-11 21:12:21) Error: at QDSMain.DistributeTask.Execute(TaskResult currentTaskResult)

(2014-12-11 21:12:21) Error: at QDSMain.Task.AbstractTask.TaskExecution(ILogBucket logBucket, TaskResult taskResult)

(2014-12-11 21:12:21) Information: Task Execute Duration=00:12:20.7008874

[gksmithlcw]

All,

I'm running QV 12 SR4 and having the exact same problem... Tasks are just failing at random. Here's a log from one such task which looks much like the OP.

2016-07-27 11:05:18) Error: The task "Staging EZView_XXX Acronym Staging Reduction" failed. Exception: || QDSMain.Exceptions.TaskFailedException: Task execution failed with errors to follow. ---> QDSMain.Exceptions.DistributeToResourcesFailedException: Distribute to resource failed. ---> System.Exception: GetRandomizedList exception  ---> System.NullReferenceException: Object reference not set to an instance of an object. ||    at QDSMain.QlikViewServerDistributionResource.Distribute(ILogBucket i_LogBucket, DistributionRequest i_DistributionRequest) ||    --- End of inner exception stack trace --- ||    at QDSMain.QlikViewServerDistributionResource.Distribute(ILogBucket i_LogBucket, DistributionRequest i_DistributionRequest) ||    at QDSMain.DistributeTask.DistributeStreamToResources(Int32 round, Distribution distribution, Dictionary`2 offeredDistributionList, String fullNtfsPathToFile, UnifiedHubSettings unifiedHubSettings) ||    --- End of inner exception stack trace --- ||    at QDSMain.DistributeTask.DistributeStreamToResources(Int32 round, Distribution distribution, Dictionary`2 offeredDistributionList, String fullNtfsPathToFile, UnifiedHubSettings unifiedHubSettings) ||    at QDSMain.DistributeTask.DistributionExecution(String fileName, Document qvbDocument, DistributionRequest distributionRequest, TaskResult taskResult, String repeatVariableName, String currentRepeatVariableValue) ||    at QDSMain.DistributeTask.Distribution(String fileName, DistributionRequest distributionRequest, TaskResult taskResult, String repeatVariableName, String currentRepeatVariableValue) ||    at QDSMain.DistributeTask.Execute(TaskResult currentTaskResult) ||    --- End of inner exception stack trace --- ||    at QDSMain.DistributeTask.Execute(TaskResult currentTaskResult) ||    at QDSMain.Task.AbstractTask.TaskExecution(ILogBucket logBucket, TaskResult taskResult)

I tried Rob's suggestion and it worked (maybe) on one task but not another.

Thoughts?

[#3]

We solved this problem selecting again name users and applying it.

We migrated to a new domain (DC) and some accounts were lost.