Why does Elasticsearch kill index after restart?

Question

elasticsearch

I have already seen such a problem several times, after the restart, the index flies.
IndexMissingException

$ curl 'localhost:9200/_cat/indices?v'
health status index pri rep docs.count docs.deleted store.size pri.store.size

The config looks like this:

cluster.name: mycluster
node.name: node-1

node.master: true
node.data: true

network.publish_host: 192.168.5.18
transport.tcp.port: 9300
http.port: 9200

discovery.zen.ping.multicast.enabled: false

Why can this happen?