curl -XPUT localhost:9200/_cluster/settings -d '{"transient":{"cluster.routing.allocation.enable": "none"}}'
/etc/init.d/elasticsearch restart
curl -XPUT localhost:9200/_cluster/settings -d '{"transient":{"cluster.routing.allocation.enable": "all"}}'
curl -XPUT localhost:9200/_cluster/settings -d '{"transient":{"cluster.routing.allocation.disable_allocation": true}}'
/etc/init.d/elasticsearch restart
curl -XPUT localhost:9200/_cluster/settings -d '{"transient":{"cluster.routing.allocation.disable_allocation": false}}'
分片保持未分配状态，直到“ cluster.routing.allocation.disable_allocation”：false，然后在刚刚重启的服务器上恢复分片（以关闭前的大小开始）。这非常快。
参考：http ://elasticsearch-users.115913.n3.nabble.com/quick-recovery-after-node-restart- in-elasticsearch-td4033876.html#a4034211
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清零编程群