docker - Manager Leader 和 Manager 有什么区别

Question

上 Docker正在编写的网站:

The MANAGER STATUS column shows node participation in the Raft consensus:

• No value indicates a worker node that does not participate in swarm management.
• Leader means the node is the primary manager node that makes all swarm management and orchestration decisions for the swarm.
• Reachable means the node is a manager node participating in the Raft consensus quorum. If the leader node becomes unavailable, the node is eligible for election as the new leader.
• Unavailable means the node is a manager that can’t communicate with other managers. If a manager node becomes unavailable, you should either join a new manager node to the swarm or promote a worker node to be a manager.

所以经理领导 制定所有群管理和编排决策 .
但那些是什么 决定 ?

我可以从任何经理那里创建新服务，我不需要从经理领导那里做。

更新:
在 this article中提到了，就像@Yunakun 提到的，一切都在经历:

Among the managers, the leader node is the one that logs all the actions that are done in the cluster (node added/removed, creation of a service, …). Swarm then ensures that the leader’s logs are replicated within each manager so one of them can take the leader role in case the current one becomes unavailable.

Answer 1

Swarm 管理器节点使用 Raft Consensus Algorithm 来管理 swarm 状态。

Raft 是基于领导者的，这意味着只有领导者节点才有能力改变 swarm 的状态。如果您向跟随者节点发送需要更改状态的请求，则该请求将被转发到领导者节点。

那些决定是可以改变 swarm 状态的决策，例如在哪个节点上部署新服务或者是否应该扩展正在运行的服务。

决策由 Raft 内部处理。它们应该对用户透明。