I got ” ORA-24550: unhandled signal received ” error in Oracle database.
ORA-24550: unhandled signal received
Details of error are as follows.
ORA-24550: unhandled signal #number received. string Cause: Serious error: signal received Action: Refer to the platform-specific signal code, and see if the application code caused the error. Otherwise, record all error state and notify Oracle Support Services."
unhandled signal received
This ORA-24550 errors are related with the Oracle 11g ( bug 7308054 )
Refer to the platform-specific signal code, and see if the application code caused the error. Otherwise, record all error state and notify Oracle Support Services.”
Try to set DIAG_SIGHANDLER_ENABLED=FALSE in sqlnet.ora file and restart the listener.
Or apply Oracle patch 8670579 to solve this error.
Other case is as follows.
The issue is caused by a memory corruption in an Oracle library. This is addressed in:
Bug 9161173 – PRO*C/C++ APPLICATION DUMPED CORE IN SQLCLN
which is closed as a duplicate of:
Bug 7365514 – EXISTING PRO*C APPLICATION OVERWRITES MEMORY AFTER UPGRADE TO 11G.
To solve this case, Try the workaround of precompiling with the Precompiler Option HOLD_CURSOR=YES
or
Install a fix for this issue. This issue is/will be fixed in the following versions:
Oracle release: 12.1.
Oracle patchset; 11.2.0.3 [Patch:10404530]
Oracle one-off patches: Please search MOS by selecting patch number 7365514 and your platform.
Do you want to learn Oracle Database for Beginners, then read the following articles.
Oracle Tutorial | Oracle Database Tutorials for Beginners ( Junior Oracle DBA )
This post clearly explains the ORA-24550 error and provides helpful troubleshooting steps! I especially appreciated the tips on checking system resource limits. It’s always frustrating running into such errors, but this guide makes it easier to diagnose the issue. Thanks for sharing!
Great post! I encountered the ORA-24550 error recently, and your detailed explanation really helped me understand the underlying causes and how to troubleshoot it effectively. Thanks for sharing those valuable tips!