10.4.2. Capturing the Core When the Daemon Crashes
/etc/init.d/functionsscript blocks core files from daemons called by
/etc/init.d/rgmanager. For the daemon to create application cores, you must enable that option. This procedure must be done on all cluster nodes that need an application core caught.
DAEMONCOREFILELIMITparameter allows the daemon to create core files if the process crashes. There is a
-woption that prevents the watchdog process from running. The watchdog daemon is responsible for rebooting the cluster node if
rgmanagercrashes and, in some cases, if the watchdog daemon is running then the core file will not be generated, so it must be disabled to capture core files.
service rgmanager restart
rgmanagerto capture the application core. The cluster node that experienced the
rgmanagercrash should be rebooted or fenced after the core is captured to ensure that the watchdog process was not running.