Whenever possible, MFX will automatically retry a sort that fails because of an MFX internal error or certain system abends. The retry facility requires no JCL specifications or other intervention.
When an error occurs in an execution of MFX, the retry facility automatically sends messages to the console and to the unsuccessful sort’s SYSOUT listing. These are messages WER426I and WER427I, and they say that an exception has occurred and that a recovery attempt is in progress. For more specific information, see the MFX message dialog (SS31MSG) or the message section of the Syncsort™ MFX Programmers Guide.