News for hackers. Stuff that matters.

A comment on Docker's Second Death. Parent comment

Re:Docker's Second Death by ga6840 on Sunday December 06, 2020 @09:41PM (#25328865)
I also want use docker swarm in production, but I keep hearing people say it has network bugs like after some time services cannot talk to each other. Have you experienced any such issue?
[ Parent | on HN ]
Re:Docker's Second Death by GordonS on Monday December 07, 2020 @08:56AM (#25332099)
I haven't experienced any networking issues in production at all.

I have experienced 1 networking issue, but only specifically when keepalives are disabled on Windows (where I use Docker for dev/test only)[0]. When using an overlay network, network connections to dockerised Postgres go "stale" after 15 minutes. I workaround it by publish the Postgres port in "host" mode instead of the default of "ingress" mode using `endpoint_mode: dnsrr`.

[0] https://success.mirantis.com/article/ipvs-connection-timeout...

[ Parent | on HN ]