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Cluster State
editCluster State
editThe cluster state API allows to get a comprehensive state information of the whole cluster.
$ curl -XGET 'http://localhost:9200/_cluster/state'
By default, the cluster state request is routed to the master node, to
ensure that the latest cluster state is returned.
For debugging purposes, you can retrieve the cluster state local to a
particular node by adding local=true
to the query string.
Response Filters
editAs the cluster state can grow (depending on the number of shards and indices, your mapping, templates), it is possible to filter the cluster state response specifying the parts in the URL.
$ curl -XGET 'http://localhost:9200/_cluster/state/{metrics}/{indices}'
metrics
can be a comma-separated list of
-
version
- Shows the cluster state version.
-
master_node
-
Shows the elected
master_node
part of the response -
nodes
-
Shows the
nodes
part of the response -
routing_table
-
Shows the
routing_table
part of the response. If you supply a comma separated list of indices, the returned output will only contain the indices listed. -
metadata
-
Shows the
metadata
part of the response. If you supply a comma separated list of indices, the returned output will only contain the indices listed. -
blocks
-
Shows the
blocks
part of the response
A couple of example calls:
# return only metadata and routing_table data for specified indices $ curl -XGET 'http://localhost:9200/_cluster/state/metadata,routing_table/foo,bar' # return everything for these two indices $ curl -XGET 'http://localhost:9200/_cluster/state/_all/foo,bar' # Return only blocks data $ curl -XGET 'http://localhost:9200/_cluster/state/blocks'