Placing TLEs in named groups

To avoid having ACIF terminate with errors, IBM® recommends that you place page-level TLEs inside named groups, using one named group per page.

You should be aware that if you specify INDEXOBJ=ALL and the input data contains composed (AFP data stream) pages, page-level TLEs (TLE records after the AEG), and no named groups (BNG/ENG), ACIF might end with error message 410 or 408. The reason for this action is that no named groups are present, and the page-level TLE records must be collected in memory until the end of the input document or file. MO:DCA index structures contain the extent (size) of the object being indexed. Indexed objects are delimited by a named group (or end document-EDT). If no named groups are present, ACIF will continue to build the index in memory. If the input file is large enough, there will not be enough memory, and ACIF will terminate. The ACIF memory manager currently limits the number (but not the size) of memory blocks that can be allocated; therefore, increasing the memory available to the indexing process might not alleviate the problem.