Performance Monitoring

• A variety of APIs let you manage and monitor the cluster
• Can access a large number of statistics through the API
• In the terminal run:

  curl localhost:9200/_cat
  

• Expected response:

  =^.^=
  /_cat/allocation
  /_cat/shards
  /_cat/shards/{index}
  /_cat/master
  /_cat/nodes
  /_cat/indices
  /_cat/indices/{index}
  /_cat/segments
  /_cat/segments/{index}
  /_cat/count
  /_cat/count/{index}
  /_cat/recovery
  /_cat/recovery/{index}
  /_cat/health
  /_cat/pending_tasks
  /_cat/aliases
  /_cat/aliases/{alias}
  /_cat/thread_pool
  /_cat/plugins
  /_cat/fielddata
  /_cat/fielddata/{fields}
  /_cat/nodeattrs
  /_cat/repositories
  /_cat/snapshots/{repository}