Join this group to access featured content and participate in discussions related to all Syncsort Mainframe Products.
For a JOIN operation with control statements specified in JNFnCNTL for pre-processing an input file, there are no messages written to JNFnJMSG (as documented for IBM's DFSORT, see below), regardless of whether a JNFnJMSG DD statement was pre-allocated or not. A need is felt for reviewing the actions taken during pre-sorting of the JOIN input files.
Extract from DFSORT documentation:
Messages from subtask1. This message data set will be dynamically allocated with SYSOUT=*, RECFM=FBA, LRECL=121 and BLKSIZE=121 if a JNF1JMSG DD statement is not supplied. If a JNF1JMSG DD statement is supplied, this message data set will be given the same attributes as a //SYSOUT message data set. An alternate ddname of idF1JMSG can be supplied with TASKID=id on the JOINKEYS statement for F1.