Optionally permits automatic CLNIDXX() during file open when a transaction high water mark, hghtrn, is found at file open to exceed the current transaction number.
The disadvantage of this approach is that it is necessary to traverse all the index leaf nodes, writing those to disk that have been cleaned. For a very large index, this could be time consuming. Only customers that have experienced problems with HTRN_ERR (520) are candidates to use this configuration option. Also, internal, administrative requests to open the file read only (say as part of a dynamic dump or ctFILBLK() processing) are denied if the file is in the middle of an on the fly CLNIDXX().
CTSTATUS.FCS receives messages concerning on the fly CLNIDXX(). Both success and failure are noted.