Agent unable to connect to the leader

[anshulpundir]

In this instance seen recently, the manager is aware of the cluster leader:

Mar 05 10:28:43 dockerd[1109]: time="2018-03-05T10:28:43.905167275-05:00" level=info msg="raft.node: 39500a8b3abac75d elected leader 713d480a713f8585 at term 3600" module=raft node.id=pvp0h3p6cwy157do6ajbfbhuu

But the agent session rpc is still delivered to the dispatcher on the local node:

Mar 05 10:29:14 dockerd[1109]: time="2018-03-05T10:29:14.408645452-05:00" level=error msg="agent: session failed" error="rpc error: code = 10 desc = dispatcher is stopped" module="node/agent" node.id=pvp0h3p6cwy157do6ajbfbhuu

[cyli]

moby/moby#36326 (comment) seemed to be this issue as well.

[anshulpundir]

But the agent session rpc is still delivered to the dispatcher on the local node:

Actually I don't know this for certain. Its not clear which manager these rpcs are being routed to.