9.2.0 Performance slowdown with ORA-6512 SYS.DBMS_ALERT ORA-12152 ORA-20000 ORU-10015 and multiple trace files

(Doc ID 1063366.1)

Last updated on SEPTEMBER 02, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.1 to 9.2.0.7 [Release 9.2]
Information in this document applies to any platform.

Symptoms


Multiple Errors seen including several trace files generated consecutively and persistently as referenced in the ALERT.LOG.

Reviewing the ALERT.LOG and trace files you fill find references similar or identical to the following:

ORA-20000: ORU-10015: error:3 waiting for pipe message.
ORA-06512: at "SYS.DBMS_ALERT", line 148
ORA-06512: at "SYS.DBMS_ALERT", line 281
ORA-06512: at line ...

Changes

It is difficult to tell if the connection problems are the source or the symptom of the problem:
That stated the multiple trace files and connection issues are seen together leading to not only the obvious connection problems, but the less understandable performance problems.

Cause

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