Error:
kernel:watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [sh:57366]
Solution:
server1:~ # echo 20 > /proc/sys/kernel/watchdog_thresh
or
server1:~ # echo "kernel.watchdog_thresh=20" > /etc/sysctl.d/99-watchdog_thresh.conf
server1:~ # sysctl -p /etc/sysctl.d/99-watchdog_thresh.conf
If the error below occurs while executing the AUXILIARY RMAN command
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 11/27/2025 14:09:10
RMAN-05501: aborting duplication of target database
RMAN-03015: error occurred in stored script Memory Script
RMAN-06026: some targets not found - aborting restore
RMAN-06729: no backup of the SPFILE found to restore
Solution: To resolve this error, execute the RMAN connect command from the Standby Database
[oracle@dg-node02 DB19c]$ rman TARGET sys/*******@db19c_stby AUXILIARY sys/*****@db19c
