Docker swarm overlay and end of swarm :(?

Question

Docker

Hello!
In general, the entire project (web site) was moved to swarm and the last service left is memcached. Most of my load goes to Apache and nginx, they are running in mode: host. Everything is working! But I wanted to run memcash in the docker overlay network, so that when one of the nodes fell, it would quietly migrate to another and the admin could sleep peacefully... when a highly loaded service is in an overlay network, the access speed to it decreases with increasing traffic. And here it happened. Compilation of 1 page with such mode 3 seconds. Or set mode: host for the meme cache, then 0.2 seconds...
In general, why do we need a swarm then? For convenient spreading of containers across nodes and a weak network load? :(

Answer 1

I'll also add consul + nomad. Also good