Comment 1 for bug 1408557

Only librarian6 has hit EMFILE so far, but librarian3 is well on the way.

Total open FDs over the hours after the librarian6 restart:

10:50:25 < foli> wgrant: librarian1: 114, librarian2: 184, librarian3: 707, librarian4: 155, librarian5: 261, librarian6: 58
13:44:19 < foli> wgrant: librarian1: 175, librarian2: 175, librarian3: 852, librarian4: 246, librarian5: 259, librarian6: 165

The number of Swift connections varies significantly:

librarian1 FD: 229, librarian2 FD: 250, librarian3 FD: 893, librarian4 FD: 299, librarian5 FD: 62, librarian6 FD: 40,
librarian1 swift: 185, librarian2 swift: 202, librarian3 swift: 845, librarian4 swift: 252, librarian5 swift: 16, librarian6 swift: 15,

It's not clear whether the 1/2/4 behaviour is normal, but I suspect they're in some trouble.