[mythtv-users] "Filesystem Info cache is empty"

[Bob Long]

MythTV 0.25

The mythbackend.log reports numerous messages like these:

-----
Oct 16 21:03:08 mythbox2 mythbackend[323]: N Expire autoexpire.cpp:263
(CalcParams) AutoExpire: CalcParams(): Max required Free Space: 3.0 GB
w/freq: 14 min
Oct 16 21:03:16 mythbox2 mythbackend[6680]: I HouseKeeping
housekeeper.cpp:225 (RunHouseKeeping) Running housekeeping thread
Oct 16 21:04:36 mythbox2 mythbackend[323]: I ProcessRequest
mainserver.cpp:1360 (HandleAnnounce) MainServer::ANN Monitor
Oct 16 21:04:36 mythbox2 mythbackend[323]: I ProcessRequest
mainserver.cpp:1362 (HandleAnnounce) adding: mythbox2 as a client
(events: 2)
Oct 16 21:04:36 mythbox2 mythbackend[323]: I ProcessRequest
mainserver.cpp:1360 (HandleAnnounce) MainServer::ANN Monitor
Oct 16 21:04:36 mythbox2 mythbackend[323]: I ProcessRequest
mainserver.cpp:1362 (HandleAnnounce) adding: mythbox2 as a client
(events: 2)
Oct 16 21:04:58 mythbox2 mythbackend[323]: I HouseKeeping
housekeeper.cpp:225 (RunHouseKeeping) Running housekeeping thread
Oct 16 21:06:08 mythbox2 mythbackend[6680]: E Expire autoexpire.cpp:161
(CalcParams) AutoExpire: Filesystem Info cache is empty, unable to
calculate necessary parameters.
Oct 16 21:06:08 mythbox2 mythbackend[6680]: E Expire autoexpire.cpp:421
(ExpireRecordings) AutoExpire: Filesystem Info cache is empty, unable to
determine what Recordings to expire
-----

What does "AutoExpire: Filesystem Info cache is empty, unable to
calculate necessary parameters." actually mean?

It looks like it's marked as an error, but what effect does the error
have? Is it something that I should try to fix? If so, how?

Presumably it's not good to have "unable to determine what Recordings to
expire".

I've searched and found others ask about this error, but I've not found
an answer.

-- 
Thanks,

Bob Long.