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Tuxedo 11gR1PS1 ( tpbeing() May Receive An XAER_PROTO Error After Abend In CICS Call Through Tuxedo Mainframe Adapter (TMA) For SNA. (Doc ID 1589323.1)

Last updated on SEPTEMBER 06, 2022

Applies to:

Oracle Tuxedo - Version and later
Information in this document applies to any platform.


From times to times a DB2 transaction generated a "TPEPROTO" error after a "TMA" autotran service (DPL program) call failed with a TPESVCFAIL.

This mis-behavior would be link to IBM DB2's interpretation of the XA standard which implies an XAER_PROTO on xa_rollback() because DB2 has interpreted the XA standard to say that rollback is not allowed if a participant is currently registered (checked by ax_reg()) with a suspended association.

Here after an Ulog sample with ax_reg returns -1:


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