Docker container in swarm seems to use more ip addresses than 'em should

General
1

Hi,

I’m looking for a strange behaviour of docker swarm.

I’ve created an overlay network /24 and adding about 50 services on it, using --endpoint-mode dnsrr, so no VIP in use.

In docker log daemon I see an unexpected over usage of ip addresses:

msg=“NetworkDB stats node1(7df0217b8a9f) - netID:jgad4pc6p3ciozymplw573vf9 leaving:false netPeers:3 entries:115 Queue qLen:0 netMsg/s:0”

I would expect to see abount 50 or so entries, not absolutly the double.

Someone may explain why?

Thank and best regards.

2

Did you check the Docker network for the current attached clients?

3

with docker network inspect and count real used ip by containers and are exactly the number I expect but the dockerd log says almost doubles