Executing an External Procedure Call Hangs When A Wallet is Configured via the SQLNET.ora Configuration File
Last updated on JULY 17, 2017
Applies to:Oracle Database - Enterprise Edition - Version 126.96.36.199 and later
Information in this document applies to any platform.
Attempting to execute an external procedure with default or listener configuration hangs when wallet is configured in database sqlnet.ora file (SQLNET.WALLET_OVERRIDE = TRUE)
This can be reproduced with the sample demo program provided in $ORACLE_HOME/plsql/demo/ and using the $ORACLE_HOME/hs/admin/extproc.ora configuration.
If the extproc process is killed it will report:
ERROR at line 1:
ORA-28579: network error during callback from external procedure agent
ORA-06512: at "SCOTT.DEMOPACK", line 5
ORA-06512: at "SCOTT.DEMOPACK", line 103
ORA-06512: at line 1
Running "pstack" on the hanging extproc process will show below call stack.
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