Core files are not output due to errors of applications, daemons, and commands.
To identify the cause when an error occurs, be sure to set core files to be output.
To output core files, take the following steps.
Change /etc/systemd/system.conf as follows.
DumpCore=yes
DefaultLimitCORE=infinity
Add following parameter in the /etc/sysctl.conf file.
fs.suid_dumpable = 2
Execute the following command to reload the sysctl configuration.
# sysctl -p
Execute the following command to reboot the system.
# /sbin/shutdown -r now
For how to set the following daemons, refer to "B.3 Settings to output core files" in "PRIMECLUSTER Web-Based Admin View Operation Guide."
/opt/FJSVwvbs/etc/bin/wvAgent
/opt/FJSVwvbs/jre/bin/java
/opt/FJSVwvcnf/bin/wvcnfd
Core files are managed by systemd-coredump service.
Core files are checked by coredumpctl command. For details, see the manual of OS.