Forwarded from the T2K/ND280 elog:

Author              : Nick Hastings
Subject             : Many warning from ten year old variables in ODB
Logbook URL         : http://elog.nd280.org/elog/FGD/2553

Midas does period checks that the variables in the ODB are ok.
One of these is a check to see if each variable was set with +/- 10
years. Since this experiment has been running for longer than 10
years there are *many* variables that fail this check.

As a result the midas.log and messages in mhttpd are spammed
with many warnings. Eg

Mon Feb 13 14:49:18 2023 [ODBEdit,ERROR] [odb.c:548:db_validate_key,ERROR] Warning: invalid access time, key 
"/System/Prompt", time 1288763123

These can be removed by simply setting the variable again with its current value.

So I wonder if it would be best to just do a full odbdump and then load all the values
back in. Comments from MIDAS experts would be appreciated. Eg:

odbedit -c 'save fgddaq.odb'
odbedit -c 'load fgddaq.odb'

Note this problem is currently seen on both the FGD DAQ and the global slow control MIDAS instances.
It may also be a problem on the INGRID GSC and the DAQs of other ND280 systems but I did not check.