Update Existing Indexes to Work with Elasticsearch 5x
You must update existing indexes to work with Elasticsearch 5x.
Update Elasticsearch mappings with the new field for each sensor:
curl -XPUT "http://${ELASTICSEARCH_HOST}:9200/${SENSOR}_index*/_mapping/${SENSOR}_doc" -d ' { "properties" : { "alert" : { "type" : "nested" } } } ' rm ${SENSOR}.template