Ora-27103 Internal Error Svr4 Error 11 Resource Temporarily [work]

The application used persistent connections without proper release, plus a monitoring tool spawned hundreds of background processes.

In this article, we’ll break down what this error means, why it occurs, and how to resolve it systematically.

In plain terms: An Oracle background process (e.g., PMON, SMON, or a server process) requested a system resource — typically or a semaphore — and the OS denied the request due to a temporary shortage. Ora-27103 Internal Error Svr4 Error 11 Resource Temporarily

: Check the OS system logs ( /var/adm/messages or dmesg ) and the Oracle alert log for more specific details on which resource was exhausted.

kernel.sem = 256 32768 100 1024

Edit /etc/sysctl.conf :

Check shared memory limits:

Then reboot or restart systemd-logind.

The message "Svr4 error 11" refers to an underlying UNIX/Linux system error code: (Resource temporarily unavailable). This article will dissect the root causes, provide step-by-step diagnostic procedures, and offer long-term solutions to prevent recurrence. : Check the OS system logs ( /var/adm/messages

ORA-27103: internal error SVR4 Error: 11: Resource temporarily unavailable Additional information: 1 Additional information: 786432

Pay special attention to: