[mythtv-users] Lookup Metadata Jobs Hang

[Jay Foster]

For the past few weeks, I have been having problems where the backend 
job queue gets stuck.  It is always because of a hung Lookup Metadata 
job.  This prevents commercial flagging jobs from running.
1) Why does lookup metadata jobs hang?
2) Why do they not error or time out?  This seems like a bug to me.
3) What is the metadata used for?  I never see any of it.
4) How can I disable metadata lookups?

Jay