Database Backup and Recovery (MOSC)

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Rman backup process hang and keeps initiating new sessions

in Database Backup and Recovery (MOSC) 4 commentsAnswered

we have oracle 12c installed on windows server 2012 operating system. we have our backups configured via commvault. recently we faced an issue that commvault backup job is running for more than 12 hours , upon investigation we found that there are multiple sessions opened with "0000001 STARTED1" status and they are waiting at stage " Backup: MML initialization" I have killed the sessions with command

Alter system kill session '487,29899' immediate;

After a few mins , new session will open with different SID and they will keep waiting for backup to be initiated.

I have tried initiating a fresh backup via rman that new backup will also be same state and there will no progress at all. we had to reboot the server to resolve this problem, can some one help me to restart the rman process with out rebooting the server / restarting the oracle services?

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