dailidong commented on issue #1658: Refactor WorkerServer URL: https://github.com/apache/incubator-dolphinscheduler/issues/1658#issuecomment-570057952 > > zookeeper > > I said : WorkerServer starts up listening a port and registers itself to zk. So when MasterServer schedules a task , it can get the worker list . But when MasterServer sends out a timeout with 5s task, and WorkerServer crashes after giving back acknowledge. In this case, we have to ping the workerServer after 5s, not relies on zk. > Let talk about ping : Ping is a type msg with empty body in self defined binary protocol in most Rpc framework . Not ping command in OS system. I think zk can do this better, if worker server down, zk can handle it immediately through listener/watch. I assume you want to remove dependency about zk?
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