SP metadata cache keeps growing

[Peter Schober]

* Cantor, Scott <cantor.2 at osu.edu> [2020-02-27 20:49]:
> I have not seen anything resembling that bad a result, so that means
> something's probably really wrong. Maybe the signature step is that
> bad now, but I didn't think so. I know the parsing isn't.

With signature valdidation:

# time systemctl start shibd
real    76m27.798s

2020-02-27 19:39:10 INFO OpenSAML.MetadataProvider : applying metadata filter (Signature)
2020-02-27 20:55:30 INFO OpenSAML.MetadataProvider : applying metadata filter (EntityRoleWhiteList)

Without:

# time systemctl start shibd                                                                            
real    0m6.974s

2020-02-27 21:29:33 INFO OpenSAML.MetadataProvider : applying metadata filter (RequireValidUntil)
2020-02-27 21:29:33 INFO OpenSAML.MetadataProvider : applying metadata filter (EntityRoleWhiteList)

> If it's the signature, then it's first time mostly. If not, it's every time.

So I guess this is good, as it at least doesn't happen on restarts
when verifyBackup="false" is set.

Still requires setting a rather large timeout for the software to
start the very first time.

-peter