Very slow sync

[rex4539]

Steps:
Start sync from scratch.

What happened:
At some point, sync started to go painfully slow.

debug.log

Expected result:
Sync is fast.

[teor2345]

Duplicate of #1435

The logs show the same symptoms: many peer connections have failed, so Zebra only has 2 peers left. If you leave it running long enough, it should permanently fail.

Dec 14 09:21:51.916  INFO {zebrad="e537926e"}:sync:obtain_tips: zebra_network::peer_set::set: network request with no ready peers: finding more peers, waiting for 2 peers to answer requests

[teor2345]

(There isn't much extra info here, and I can't seem to get GitHub's duplicate issues to work, so I'm just going to close this issue.)

[teor2345]

Please re-test with the latest Zebra main branch, we've merged the #1468 peer diagnostics and #1511 panic fix since then.