Getting errors in the logs:
Feb  2 09:46:03 primary smbd[8024]: [2006/02/02 09:46:03, 0] smbd/connection.c:register_message_flags(220)
Feb  2 09:46:03 primary smbd[8024]:   register_message_flags: tdb_fetch failed
Feb  2 09:47:03 primary smbd[8024]: [2006/02/02 09:47:03, 0] smbd/connection.c:register_message_flags(220)
Feb  2 09:47:03 primary smbd[8024]:   register_message_flags: tdb_fetch failed

Along with sporadic printing errors and failure to print to networked printers.  Jobs are submitted yet never print - queue gets backed up.  Previously was having these errors in the logs:
Jan 30 14:20:01 primary smbd[2577]:   tdb(/var/cache/samba/printing/claser_3.tdb): rec_read bad magic 0x0 at offset=21904
Jan 30 14:20:01 primary smbd[2577]:   tdb(/var/cache/samba/printing/copier_2.tdb): rec_read bad magic 0x0 at offset=1

But haven't seen any since that date.  (I removed the printer tdbs and commented out the specific printer shares in samba since we're pritning via cupsaddsmb driverless printing.