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could not mount in exclusive mode
I have 2 problems with my database.
1. When i try to connect to my database using sql*plus some time it hangs.
2. When i logged in to my (running) database, I got database could not mount in exclusive mode.Then i killed all the oracle backgroung processes and i started up the database.I got " Connected to Idle instance". Now it is working fine.
Could you tell me what was the problem ?
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In alert log file ,
sculkget: failed to lock /databases/ora10g//dbs/lkORCL exclusive
sculkget: lock held by PID: 6159
ORCL is my database instance name.
ORA-09968: unable to lock file
Linux Error: 11: Resource temporarily unavailable
Additional information: 6159
Then it starts stopping CJQ,MMNL and MMON background processes.
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I think you need to shut everything down, make sure no processes are running / shared memory is cleaned up, then restart as you are in an unknown state
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