Hi all, I wanted to discuss if it makes sense to remove support for Mesos in Flink. It seems that nobody is actively maintaining that component (except for necessary refactorings because of interfaces we are changing), and there are almost no users reporting issues or asking for features.
The Apache Mesos project itself seems very inactive: There has been only one message on the dev@ list in the last 3 months. In 2020, I found only 3 users mentioning that they are using Mesos on the user@ list. Maybe it makes sense to add a prominent log warning into the Mesos code in the Flink 1.12 release, that we are planning to remove Mesos support. Users will then have enough opportunity to raise concerns or discuss with us. Best, Robert