ORA-09844

Error: ORA-09844: soacon: Archmon unable to open named pipe.

Causa: OPEN() failed to open named pipe ?/dbs/mon2arch_@.

Acción: Only the Oracle DBA can run ARCHMON. Make sure that your current operating system login has owner or group search permission for the ORACLE_HOME/dbs directory. The maximum number of open files may have been exceeded.