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In order to use the Elasticsearch API, it is necessary to access the Elasticsearch API from a server from the application network (eg web roles).

Cluster Health

Information about the health of the entire cluster.

Command (1):

curl -XGET 'https://ENDPOINT/_cat/health?v'

epoch          timestamp   cluster  status  node.total node.data shards pri  relo init unassign pending_tasks max_task_wait_time active_shards_percent
1491573911     14:05:11    graylog  green   4          2         362    182  0    0    0            0         -                  100.0%

Node information

Information about the utilization, roles and master assignments of the individual nodes.

Command (2):

curl -XGET 'https://ENDPOINT/_cat/nodes?v'
host              ip                        heap.percent ram.percent     load       node.role  master    name                                        
10.69.57.100      10.69.57.100              76           90              0.04       c          -         graylog-827fd376-d1b5-49f7-8600-dba8338140ae
10.69.57.143      10.69.57.143              65           95              0.72       d          *         root360-logmonitoring-es02-i-e240205f        
10.69.58.21       10.69.58.21               46           96              0.01       c          -         graylog-5bd0bac2-d712-4038-a682-089810196c11
10.69.57.70       10.69.57.70               58           96              0.13       d          m         root360-logmonitoring-es01-i-e4402059

Index Informationen

Informationen about status, replication, document cound (existing and deleted) und storage size.

Command (3):

curl -XGET 'https://ENDPOINT/_cat/indices?v'
health status index    pri rep docs.count docs.deleted store.size pri.store.size 
green  open   index_1  1   1          0            0       260b           130b 
green  open   index_2  1   1         70            3    572.4kb        286.2kb

allocation

Information about Data Nodes and their HDD utilization, as well as Shard number.

Command (4):

shards

Information about all the shards in the cluster.

Command (5):

(1) https://www.elastic.co/guide/en/elasticsearch/reference/2.3/cat-health.html

(2) https://www.elastic.co/guide/en/elasticsearch/reference/2.3/cat-nodes.html

(3) https://www.elastic.co/guide/en/elasticsearch/reference/2.3/cat-indices.html

(4) https://www.elastic.co/guide/en/elasticsearch/reference/2.3/cat-allocation.html

(5) https://www.elastic.co/guide/en/elasticsearch/reference/2.3/cat-shards.html

Knowledge Base

(Archived) Elasticsearch API

Cluster Health

Index Informationen

shards