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What Exactly PMON Process do And What will Happen if we Kill It Forcefully?

Updated May 18, 2018

Hello Experts,

May I know that what exactly pmon process do and what will happen if we kill it forcefully?

Kindly share your valuable views here, so i can proceed further.

Thanks in advance.

Comments

25 Sep 2015 11:24 am Sugandh Helpful Answer

PMON process is a background process and it's enable while instance is in mount/open mode and generally it's deallocate the resources and releases the locks while any process is disconnect from database and pmon register the service name in listener.

25 Sep 2015 11:29 am Nitesh Singh Helpful Answer

PMON (process monitor ) is a mandatory process, responsibilities are
1> pmon is responsible for user recovery.
2 > pmon release the resources.
3> pmon release the locks.
4> release the memory taken by users.
5> permanently check to the user connection.
6>restart the server process in the case of crash.
7>dynamical register to the database with the listner.
8> shutdown the database in some cases (like redo group filled no space etc cases )
9>roll back.
10> many more.
yes its a mendatory process so if you kill to pmon your instance will be aborted.

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