curator.leader — rborer/curator 0.0.11

interrupt-leadership clj

(interrupt-leadership leader-selector)

Attempt to cancel current leadership if we currently have leadership

leader clj

(leader leader-selector)

leader-selector clj

(leader-selector curator-framework
                 path
                 leaderfn
                 &
                 {:keys [participant-id losingfn]
                  :or {participant-id (str (UUID/randomUUID))
                       losingfn (constantly nil)}})

Creates a Leader Selector. path: The path in ZooKeeper for storing this leadership group leaderfn: Function that will be called when the current process becomes leader. This function should block and only return when the process wishes to release leadership to someone else. losingfn: Optional function that will be called when the connection state changes indicating we're going to lose leadership. participant-id: Uniquely identifies this participant. Defaults to UUID/randomUUID

leader? clj

(leader? leader-selector)

listener clj

(listener became-leader-fn losing-leader-fn participant-id)

participants clj

(participants leader-selector)