I am setting up an Elasticsearch cluster with ES version 2.0.0. I have set up cluster with two nodes in EC2.
I have found following issues:
Auto discovery not working: With setup of two nodes having cluster.name same on both nodes. These nodes failed to discover each other. After changing config to described in this post I got the basic cluster working with master and slave.
Automatic failover: The cluster failed to elect slave as master when node 1 was stopped which made the cluster inoperable.
What may be the reason that the ES cluster not doing failover?
I see nothin extra in logs except
[discovery.zen] [stag-elastic-node-2] master left (reason = shut_down),.....
No logs related to election appears in log file of any node.
Config file node 1:
cluster.name: stag-elastic-cluster
node.name: stag-elastic-node-1
index.number_of_shards: 2
index.number_of_replicas: 1
network.host: 0.0.0.0
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: ["10.x.x.x","10.x.x.x"]
Config file node 2:
cluster.name: stag-elastic-cluster
node.name: stag-elastic-node-2
index.number_of_shards: 2
index.number_of_replicas: 1
network.host: 0.0.0.0
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: ["10.x.x.x","10.x.x.x"]
Ports 9200 and 9300 are open in both directions. Any help will be appreciated.
