EBS R12 - OPMN worker process exited with status 9. Restarting
During system use，suddenly，EBS R12 home page can not visit，and SOA webservice can not be found (ERROR 404)
when check the opmn.log，there are some logs show the opmn server restart failed
there is no operations in the system,why the opmn server restart? and restart failed?
from 2022/01/06 10:05:33 to 2022/01/06 10:20:00,system can not login
from 2022/01/06 10:05:33 to 2022/01/06 12:00:00,plsql websevice can not visit
at last , we execute adstpall.pl and adstrtall.pl to restart application,make the system restored.
some logs blow:
access_log.1641427200:
from:
172.17.89.120 - - [06/Jan/2022:10:05:36 +0800] "POST /forms/lservlet;jsessionid=f6933f905ee39359a14180b0ffe8b01d447de1bcc5600d97c6f99d546ee80105.e38Qa38Tbx8Mai0LchuSbN4KaN0Le0 HTTP/1.1" 404 327 0 "-" "Mozilla/4.0 (Windows NT (unknown) 6.2) Java/1.6.0_27"