Troubleshooting
Problem
With ATAP activated, there are errors logged when Oracle starts, and errors accessing External Tables
Symptom
Error accessing External Tables, same Error logged when starting database.
ORA-29913: error in executing ODCIEXTTABLEFETCH callout
Cause
ATAP library missing the required dlsym symbol used for dynamic linking operations
Environment
Oracle Database
Diagnosing The Problem
Confirm error below is present is logged:
KUP-04095: preprocessor command [...] symbol lookup error: /lib/libguard-atap-oracle-any-64.so: undefined symbol: dlsym
Resolving The Problem
Stop the Oracle Database
Deactivate ATAP
Reactivate ATAP with instrumentation enabled by including the parameter below:
db_use_instrumented=yes
Start the Oracle Database
Document Location
Worldwide
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Document Information
Modified date:
25 March 2026
UID
ibm17267363