Logo Questions Linux Laravel Mysql Ubuntu Git Menu
 

Elasticsearch Cluster - No known master node, scheduling a retry

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.

Based on limited documentation on how to do this, I am running into issue on second with following error

[DEBUG][action.admin.indices.get ] [Match] no known master node, scheduling a retry

I am unable to determine the best configuration for both servers to achieve this but this is what I have done so far:

Master Node Config:

cluster.name: elasticsearch
node.master: true
path.data: /local00/elasticsearch/
path.work: /local00/el_temp/
network.host: 0.0.0.0
http.port: 9200
script.disable_dynamic: true

Node 2

cluster.name: elasticsearch
node.master: false
node.data: true
index.number_of_shards: 5
index.number_of_replicas: 1
path.data: /local00/elasticsearch/
path.work: /local00/el_temp/
network.host: 0.0.0.0
http.port: 9200
script.disable_dynamic: true

I am assuming I am missing additional config somewhere. Any help will be much appreciated.

like image 322
Sysads Gazette Avatar asked Feb 12 '15 09:02

Sysads Gazette


2 Answers

Got it working with following changes answered here How to set up ES cluster?:

Node 1:

cluster.name: mycluster
node.name: "node1"
node.master: true
node.data: true
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: ["node1.example.com"]

Node 2:

cluster.name: mycluster
node.name: "node2"
node.master: false
node.data: true
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: ["node1.example.com"]
like image 132
Sysads Gazette Avatar answered Sep 29 '22 07:09

Sysads Gazette


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.

like image 42
ipeacocks Avatar answered Sep 29 '22 07:09

ipeacocks