Hi,
Sometimes you can get ” ORA-00469: CKPT process terminated with error ” error.
Details of error are as follows.
ORA-00469: CKPT process terminated with error Cause: The checkpoint process died Action: Warm start instance Errors in file _pmon_16250.trc: ORA-00469: CKPT process terminated with error Mon Apr 7 07:42:48 2012 PMON: terminating instance due to error 469
Increase the fs.file-max OS kernel parameter = 6815744, in your single instance node or in all the RAC nodes.
The latest solution is startup or restart instance again.
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https://ittutorial.org/oracle-database-19c-tutorials-for-beginners/