I think this might worth a discussion here. Feng ---------- Forwarded message --------- From: Feng LI <nemoking...@gmail.com> Date: jeu. 19 juil. 2018 à 17:26 Subject: Is upgradeStrategy respected during redeployment To: <u...@mesos.apache.org>
Hello guys, We had a very similar issue as this one: https://jira.mesosphere.com/browse/MARATHON-2340 Basically the upgradeStrategy is not respected during the rollback, which results in 0 healthy instance. I'm wondering what happens if I do a deployment of the old version instead of a rollback, will it respect the upgradeStrategy in this case. More precisely: 1. Assume we have 4 healthy instances 2. A new deployment with minimumHealthyCapacity to 0.5, and the new deployment will end up with unhealthy status. So we'll end up with 2 healthy instances and 2 unhealthy instances 3. If we rollback this deployment, we'll end up with 0 healthy instances (say the old version will fail with healthy check due to startup/warmup issue) 4. The question is, what if we don't rollback, but do a deployment with the old version? Will marathon guarantee the upgradeStrategy in this case? Thanks, Feng
