Elasticsearch Cluster - No known master node, scheduling a retry

Question

I have a server running elasticsearch and kibana. I have added a second node to form a cluster but only want that second node to replicate data from the master node.

Answer 1

If you are trying to connect additional node to already existed ES cluster, make sure that this node also have all the same ES plugins as another nodes. If not - node cant be fully connected (other nodes can show it as connected but http-commands cant be launched on it) to ES cluster with error like:

[2016-07-21 11:56:59,564][DEBUG][action.admin.cluster.health] [dev-marvel1] no known master node, scheduling a retry
[2016-07-21 11:57:05,313][INFO ][rest.suppressed          ] /_cluster/health Params: {pretty=true}
MasterNotDiscoveredException[waited for [30s]]
        at org.elasticsearch.action.support.master.TransportMasterNodeAction$4.onTimeout(TransportMasterNodeAction.java:154)
        at org.elasticsearch.cluster.ClusterStateObserver$ObserverClusterStateListener.onTimeout(ClusterStateObserver.java:239)
        at org.elasticsearch.cluster.service.InternalClusterService$NotifyTimeout.run(InternalClusterService.java:574)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

In my case problem was with license plugin. After removing it everything became fine.