demo
GET twitter/_stats
GET twitter/_stats/merge
# Get back stats for merge and refresh only for all indices
GET /_stats/merge,refresh
# Get back stats for type1 and type2 documents for the my_index index
GET /twitter/_stats/indexing?types=type1,type2
# Get back just search stats for group1 and group2
GET /_stats/search?groups=group1,group2
# Lucene index (shard level)
GET /kibana_sample_data_ecommerce/_segments
GET /kibana_sample_data_ecommerce/_segments?verbose=true
GET /kibana_sample_data_ecommerce,kibana_sample_data_flights/_segments
GET /_segments
