Warning Another instance of Singleton Task is running during the PMImport process

Products

• Patch Management Solution for Windows

Issue/Introduction

The following warnings are seen in the Notification server logs during the PMImport process.

Source: Altiris.PatchManagementCore.Tasks.Server.SerializingBaseSingletonServerTask`2.OnExecute
Description: Another instance of Singleton Task is running

Source: PMC:SerializingBaseSingletonServerTask`2.OnExecute
Description: OnExecute()- Another instance of Import Patch Data for Windows task is running, aborting.

 

This may also be seen with other tasks like: Revise Software Update, Microsoft Patch Management Import, Check Software Update Package Integrity etc.

Source: Altiris.TaskManagement.ServerTasks.ServerTaskExecutionInstance.Sleep
Description: Task instance Re-Run Adobe Patch Management Import1 (1/1/0001 12:00:00 AM) is being put to sleep until 11/9/2009 1:41:32 PM. Instance GUID: 483d3573-5fd5-407c-9fbd-13dc31baaeb7

Source: Altiris.TaskManagement.ClientTask.*
Description: Resuming task instance Adobe Patch Management Import (1/1/0001 12:00:00 AM)(483d3573-5fd5-407c-9fbd-13dc31baaeb7)

 

 

 

 

Environment

Patch Management Solution

Cause

Currently multiple PMImports cannot be running at the same time.

Resolution

Work through the following steps on the Notification Server > Console > Manage > Jobs and Tasks > System Jobs and Tasks > Software > Patch Management > Microsoft Patch Management Import  

1. Stop all running instances of Import Patch Data
   • Highlight the attempts; right-click / Stop
   • Ensure clean up processes, like Revise Software Update Task, are also stopped: TECH45458
     • Contact support if unable to access the hidden Revise Software Update Task through the URL provided on this KM
     • Note: this hidden URL is not supported; however, this URL is a means to stopping any queued instances of this task
        
2. Run the corresponding commands to reconfigure the database to the current version of Patch Management installed.
   • These commands are outlined on KM: HOWTO9725
      
3. Run the PMImport manually or allow to run on schedule
   • Disable the 'Incremental download' setting / save changes.
   • May need to adjust the schedule to allow for the full process of .cab download and clean up to complete.