The group source record is too long to fit into the buffer for processing data. The message provides the following information:
The data map type, such as IDMS or DL1. For certain data map types this field provides additional information. For example, SEQ VSTREAM indicates an SEQ data map that processes a variable-length stream data file.
Length of the group source record.
The maximum internal buffer size, as specified by the GSBUFSIZE statement in the DBMOVER configuration file. This value must be at least as great as the length of the group source record.
The CDC session ends.
To increase the size of the buffer, increase the value of GSBUFSIZE in the DBMOVER configuration file.