SharePoint SPTimerV4 stops automatically

My farm SharePoint 2010 Products and Configuration Wizard fails with the log err message "The exclusive inplace upgrader timer job failed" SPTimerV4 is running as farm administrator with necess开发者_如何学Cary sql permissions. When this error happens SPTimerV4 stops automatically.

Event log message is as follows

Failed to upgrade SharePoint Products. An exception of type Microsoft.SharePoint.PostSetupConfiguration.PostSetupConfigurationTaskException was thrown. Additional exception information: Failed to upgrade SharePoint Products. Microsoft.SharePoint.PostSetupConfiguration.PostSetupConfigurationTaskException: Exception of type 'Microsoft.SharePoint.PostSetupConfiguration.PostSetupConfigurationTaskException' was thrown. at Microsoft.SharePoint.PostSetupConfiguration.UpgradeTask.Run() at Microsoft.SharePoint.PostSetupConfiguration.TaskThread.ExecuteTask()

Also I notice when deploying .wsp solutions with STSADM status is stuck with "deploying" and never finishes. Why the timer job stops frequently?

Check if "domain user has 'log on as service' permissions"?

When ever 'Recycle Timer Service' restarts (on a scheduled basis), it restarts "SPTomerV4" service also which with the above permission disabled fails to restart.

Ref: http://social.technet.microsoft.com/Forums/en-US/sharepoint2010setup/thread/1cf30506-4cf6-4d6c-a56d-565a83668c1e

http://technet.microsoft.com/en-us/library/cc739424%28WS.10%29.aspx?ppud=4