What is process monitor (PMON)?
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What is process monitor (PMON)?
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The process monitor (PMON) is an Oracle background process that is responsible for performing the cleaning of failed user database connections. This process involves the releasing of blocks that were involved in the failed connection, from the database buffer cache. It also involves the releasing of the resources used by a user process at the time of connection failure. The resource releasing includes removing the locks from database objects that were involved in the failed connection, and removing process id's of the failed processes from the list of active processes.
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