This article provides instructions to start or stop the Serial Async Task Executor Service (background task EPOCore.SerialAsyncTaskExecutorService).

The 'Serial Async Task Executor Service' is created after you upgrade to ePO 5.9, to manage, and execute the post-upgrade Async Task command queue.
The 'Serial Async Task Executor Service' executes the Async Tasks, pushed to it via com.mcafee.epo.core.command.PostUpgradeAsyncCommand.

You can view the status of the Serial Async Task Executor Service in the Server Task Log as shown below.

Example showing Status: Completed for the Serial Async Task Executor Service in the Server Task Log:



Example showing a successful start for the Serial Async Task Executor Service on the Server Task Log Details page:



Example showing a successful stop for the Serial Async Task Executor service on the Server Task Log Details page:

• To start the Serial Async Task Executor Service, run the following Remote Command in a browser:
   
  https://<ePO_system_IP_address>:8443/remote/ EPOCore.SerialAsyncTaskExecutorCommand?mode=1
   
• To stop the Serial Async Task Executor Service, run the following Remote Command in a browser:
   
  https://<ePO_system_IP_address>:8443/remote/ EPOCore.SerialAsyncTaskExecutorCommand?mode=0
  
  NOTE: The task EPOCore.SerialAsyncTaskExecutorService stops gracefully when you execute the stop command via EPOCore.SerialAsyncTaskExecutorCommand. For a Tomcat shutdown and restart, the task EPOCore.SerialAsyncTaskExecutorService is forcefully stopped. But, on restart of Tomcat, it reinitializes itself from the database and restart all pending PostUpgradeAsyncCommand tasks.