Exception condition diagnostic procedures

Several exception condition diagnostic procedures are available.

DRDA exception condition diagnostic procedures
Db2 defines a DRDA exception condition as an event that represents one of several conditions.
DRDA exception event notification
When DDF resource managers identify DRDA exception conditions, event notification is sent to several destinations.
DRDA summary
Before you use the Statistics Class 4 trace records, be familiar with the distributed relational database architecture.
DDIS IFCID 0191 trace record structure
The IFCID 0191 record always consists of a header, QW0191HD, and one or more other sections. The exact structure of the 0191 record is dependent upon the Db2 parse state, DDM command and command/reply data object, and nature of the DRDA exception condition.
DDIS IFCID 0191 common diagnostic procedures
The diagnosis of DRDA exception conditions that are detected by DDIS always begins with the 32-bit Db2 reason code.
IFCID 0191 trace record common diagnostic procedures
The diagnosis of a DRDA exception condition that is identified by DDIS begins with one or more IFCID 0191 trace records and the Db2 reason code that is recorded within the QW0191RS field of the QW0191HD section.
Distributed two-phase commit error conditions
Db2 support of distributed two-phase commit provides the detection of a number of events that can have a negative impact on data availability or that indicate or can lead to data inconsistency.

Parent topic: Diagnostic aids for distributed data