amazon web services - Unreliable discovery for elasticsearch nodes on ec2 -

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i'm using elasticsearch (0.90.x) cloud-aws plugin. nodes running on different machines aren't able discover each other ("waited 30s , no initial state set discovery"). i've set "discovery.ec2.ping_timeout" "15s", doesn't seem help. there other settings might make difference?

discovery:     type: ec2     ec2:         ping_timeout: 15s

not sure if aware of blog post: http://www.elasticsearch.org/tutorials/elasticsearch-on-ec2/. explains plugin settings in depth.

adding cluster name, 

cluster.name: your_cluster_name  discovery:     type: ec2 ...

might help.


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