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Why can't I start the Events Service after an abrupt shutdown?

Symptoms

If the Events Service is not stopped gracefully before restarting the system or if the Events Service process is killed abruptly, the Events Service start will fail. The Events Service log will have the below entry:

 

ERROR] [main] [c.a.common.framework.AbstractApp] Severe error occurred while starting 
application [events-service-api-store]. Shutdown procedure will commence soon
java.lang.RuntimeException: Unable to create file
[/opt/AppDynamics/Controller/events_service/bin/../events-service-api-store.id] to store the process id
because it already exists. Please stop any currently running process and delete the process id file

 

Diagnosis

A graceful shutdown of the Events Service results in clearing the events-service-api-store.id. At the next startup, this file is created again by the Events Service. In case of abrupt shutdown of the Events Service, this file is not removed and during the next startup the Events Service will not be able to create this file. This cause the start-up failure for the Events Service.

 

Solution

Remove the events-service-api-store.id file located in <EventsServiceHome> directory and then start the Events Service process. To avoid this scenario, always perform a graceful shutdown of the Events Service.

Version history
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2 of 2
Last update:
‎11-28-2018 04:38 PM
Updated by:
 
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Comments

After our system had an outtage the described issue occured, thanks for the public solution.

 

Thanks for the feedback @Christopher.Berger. Any additional tips or comments you could add here?