git fetch/push slowliness and/or errors

[Yevgeny Zaspitsky]

Recently (today) I started having problems with pushing and fetching staff
from oVirt git server.
Bellow is what I get on my attempt of pushing the rebase topic:

[yzaspits at yz-dell2 ovirt-engine]$ git push gerrit.ovirt.org:ovirt-engine
HEAD:refs/for/master/ipv6
Counting objects: 1275, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (515/515), done.
Writing objects: 100% (1275/1275), 164.53 KiB | 0 bytes/s, done.
Total 1275 (delta 540), reused 1060 (delta 341)
remote: Resolving deltas: 100% (540/540)
remote: Processing changes: updated: 15, refs: 16, done
remote: error: internal error while processing changes
To gerrit.ovirt.org:ovirt-engine
 ! [remote rejected] HEAD -> refs/for/master/ipv6 (internal error)
error: failed to push some refs to 'gerrit.ovirt.org:ovirt-engine'

The command run took about 5-10 minutes, during which was very slow
progress in the "updated" count. Fetching takes very long time too.
I tried pinging gerrit.ovirt.org but didn't find a problem in the network.
Also ssh -T works relatively fast.

Is anyone experiences anything similar?
How can this be troubleshoot?
What "internal error" does mean? Is that on the git server side or on the
on the client one?

Regards,
Yevgeny
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