ORA-09850: soacon: Archmon unable to lock named pipe.
Cause: fcntl() failed to set write lock on named pipe ?/dbs/arch2mon_@.
Action: Make sure that archmon is not already active on another terminal for this ORACLE_SID. Only one archmon session is allowed at a time for a given instance.
ORA-09851
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ORA-09850soacon: Archmon unable to lock named pipe.