[sheepdog-users] WARN wait_forward_request messages

[Maxim Terletskiy]

Hi!

I see similar messages in log:
  WARN [gway 18794] wait_forward_request(413) poll timeout 1, disks of 
some nodes or network is busy. Going to poll-wait again

Some of nodes have Infiniband for IO connection. This nodes have much 
less warnings in logs(0-10 per day with IB, 10-20 per hour without IB). 
So looks like the problem is in network. But after couple of days 
monitoring network activity with vnstat I can't see any traffic peaks 
which could be the reason of this messages.

Where can be the bottleneck?

All my nodes with data using IB, all my nodes with VMs working in GW 
mode and using object cache. Sheep version 0.8.0.