Any idea what is causing this?
Update AIX online catalog fails "Error while updating metadata, Error: aix_metadata_generator script failed with exit status: 2, Error: Failed to get bff info for U856737.bff : May be another catalog process is running on same repository server. Please try running it later"
What do you have in rscd.log on repository server? Also did you try running it at different time does it work?
Also would it be possible to use different repository server?