16.3.17 ORA-12549 and TNS-00519

Indicate that a quota or hard limit imposed by the operating system has been exceeded.

Message

ORA-12549: TNS:Operating system resource quota exceeded
TNS-00519: Operating system resource quota exceeded

Cause

Possible limits include:

  • The maximum number of processes allowed for a single user

  • The operating system is running low on paging space

Action

  • Increase the number of processes by setting the PROCESSES parameter in the database initialization file to a larger value.

  • Check the sqlnet.log or listener.log file for the detailed error stack information, such as an operating system error code to help identify which quota has been exceeded.

Parent topic: Resolving the Most Common Error Messages for Oracle Net Services