elasticsearch.tip.md

http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/cat.html

http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/cluster-nodes-shutdown.html

---

Take one elasticsearch box (in AWS cloud) of the cluster (for example, maintenance jobs such as upgrade and reboot the box): http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-cluster.html

curl -XPUT localhost:9200/_cluster/settings -d '{
    "transient" : {
        "cluster.routing.allocation.exclude._ip" : "10.0.0.1"
    }
}'

Another way

curl -XPUT localhost:9200/_cluster/settings -d '{ 
     "transient" :{ 
          "cluster.routing.allocation.exclude.name" : "ip-10-01-1-23_i-416a2d7e"
          }
}'

Notes:

1. You need AWS plug-in for elasticsearch.
2. when do the maintenance, you need take one box off the cluster, this curl command will be useful.
3. replace "localhost" to your logstash load banancer dns name,  "10.0.0.1" to the real ip address, or "ip-10-01-1-23_i-416a2d7e" to real aws instance id.