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FSA Rescans Unmodified Items After Upgrade

The current CA DataMinder release includes a timestamp conversion fix for the File Scanning Agent (FSA). However, this fix may cause the FSA to rescan all previously scanned items, even if they are unmodified, when you upgrade the FSA.  This issue affects all existing scanning jobs that use the ‘Only rescan items if they have been modified since the last scan’  job option.

What causes this problem? The scanned files database contains details of files already scanned, including each file's Last Modified timestamp. However, the method used previously to convert local timestamps to UTC timestamps was incorrect. The timestamp conversion is now fixed.  Therefore when you upgrade the FSA, it recalculates all UTC timestamps in the scanned files database. When a scanning job next runs, the FSA detects that all timestamps have changed and infers that all items have been modified since the last scan. Consequently, the FSA rescans all items, including files that have not been modified or updated.