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Error 2056 Trapped In 2PC On Transaction / ORA-600 [18201]/ORA-600 [18203] (Doc ID 2073878.1)

Last updated on FEBRUARY 19, 2019

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


1. Alert log file shows the following error messages:

Error 2056 trapped in 2PC on transaction 68.2.98031. Cleaning up.
Error stack returned to user:
ORA-02056: 2PC: k2lcom: bad two-phase command number rdonly from coord
ORA-00600: internal error code, arguments: [18203], [], [], [], [], [], [], [], [], [], [], []

2. Incident trace file shows no failing sql (no cursor) as well as failing function stack information, similar to the below

----- SQL Statement (None) -----
Current SQL information unavailable - no cursor.

ktc_die  k2send kpotxcap kpotxen opiodr





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