Symptom: On the OSMU, many services on the master and slave servers are started at the same time, but some services are not restarted.
Problem analysis:
1. Check the historical tasks of user operations on the OSMU. It is found that no service is restarted.
2. Select several microservices and check the logs. It is found that the services are not stopped. Instead, they are stopped and then started 5 minutes later. Check the /export/home/osslog/U2020/CMEngine/log/cmengine-1-0_monitor.log file in the microservice log path. No memory or handle exception is found.
3. In addition, no core file exists and a large number of services are restarted. Therefore, the possibility of core dump at the same time is low.
4. Check the /var/log/loacalmessage log on the local host. The log shows that the ipmc service is executed to restart all services except the whitelist service. ipmc_adm -cmd stopapp -tenant U2020 -ignore enablelist.: It is learned that the whitelist is used for services other than the CloudSOP bus service. There are about 10 write services on the platform. Therefore, some services are not restarted.

5. Analysis shows that all services on the master and slave servers are restarted. In addition, the root or ossuser user is switched to the ossadm user by running the command. The cause may be a script operation of a service or a manual operation. However, the -ignore enablelist parameter is not added to the command. This problem may be triggered by the mediation uninstallation.
The mediation uninstallation window shows that the mediation is uninstalled at the corresponding time.

