Has anyone had this happen to them after upgrading to version 10? My detailed statistics retention had been set to 31 days when I was running v9.5 SP4. After upgrading Orion to v10 and NTA to v3.6 I noticed my database shrunk almost in half after the database maintenance ran. At first I thought I might have had the top talker optimization implemented incorrectly in the previous version of NTA and the upgrade fixed it, but I checked my detailed statistics retention time and noticed it had been changed from 31 days back to the default of 14 days.
I'm just curious if this is something that's happening across the board or if I was the only 'lucky' one to run into this.
I noticed the same statistics retention setting reset problem. Beware it also seems to have happened to me when I applied SP1 to v10. You might want to double check the retention settings before you re-apply them.