I tried some zypper ref and it never finished and it claimed even errors and
cancled itself.

zypper -vv ref

shows a few bytes/sec only (instead of kilobytes/sec or rather megabytes/sec)
when fetching those repodata/xml.... and tgz files in there

and right now the mirrorbrain also shows that hardly any file of the leap
repodata folder is distributed at all, or those metafiles at least are not.

only the topmost filename is distributed and present on remote servers
according to:

http://download.opensuse.org/update/leap/42.1/oss/repodata/5afc6cb78c11733eb7ae0cd9dfefc5a37fba3d6530ec285484cf419be9bc7e84-suseinfo.xml.gz.mirrorlist


this smallest few bytes file is present on mirrorbrain infrastructure, the rest
seems to be served only directly from the master server of opensuse at the
moment, e.g. zypper ref

fetching that

Retrieving:
http://download.opensuse.org/update/leap/42.1/oss/repodata/8039f03905ec7eed3280f7122fb9002c1bb5740c00edd5d1081[done
(2.2 KiB/s)]

and right now completely stalling:

Retrieving:
http://download.opensuse.org/update/leap/42.1/oss/repodata/a5c2ffb1a8acfe52a34d58a230008e28d185eb3b61b256a5aa1e958fa55f7dc1-u[\



e.g.
http://download.opensuse.org/update/leap/42.1/oss/repodata/a5c2ffb1a8acfe52a34d58a230008e28d185eb3b61b256a5aa1e958fa55f7dc1-updateinfo.xml.gz.mirrorlist


says only being served directly :(
something wrong with mirrorbrain?