ORA-09851: soacon: Archmon unable to lock named pipe.



ORA-09851: soacon: Archmon unable to lock named pipe...

Answer / guest

Cause: fcntl() failed to set read lock on named pipe
?/dbs/mon2arch_@.

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.

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