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[[cluster-stats]]
== Cluster Stats
The Cluster Stats API allows to retrieve statistics from a cluster wide perspective.
The API returns basic index metrics (shard numbers, store size, memory usage) and
information about the current nodes that form the cluster (number, roles, os, jvm
versions, memory usage, cpu and installed plugins).
[source,js]
--------------------------------------------------
curl -XGET 'http://localhost:9200/_cluster/stats?human'
--------------------------------------------------
Will return, for example:
[source,js]
--------------------------------------------------
{
"cluster_name": "elasticsearch",
"status": "green",
"indices": {
"count": 3,
"shards": {
"total": 35,
"primaries": 15,
"replication": 1.333333333333333,
"index": {
"shards": {
"min": 10,
"max": 15,
"avg": 11.66666666666666
},
"primaries": {
"min": 5,
"max": 5,
"avg": 5
},
"replication": {
"min": 1,
"max": 2,
"avg": 1.3333333333333333
}
}
},
"docs": {
"count": 2,
"deleted": 0
},
"store": {
"size": "5.6kb",
"size_in_bytes": 5770,
"throttle_time": "0s",
"throttle_time_in_millis": 0
},
"fielddata": {
"memory_size": "0b",
"memory_size_in_bytes": 0,
"evictions": 0
},
"filter_cache": {
"memory_size": "0b",
"memory_size_in_bytes": 0,
"evictions": 0
},
"id_cache": {
"memory_size": "0b",
"memory_size_in_bytes": 0
},
"completion": {
"size": "0b",
"size_in_bytes": 0
},
"segments": {
"count": 2
}
},
"nodes": {
"count": {
"total": 2,
"master_only": 0,
"data_only": 0,
"master_data": 2,
"client": 0
},
"versions": [
"0.90.8"
],
"os": {
"available_processors": 4,
"mem": {
"total": "8gb",
"total_in_bytes": 8589934592
},
"cpu": [
{
"vendor": "Intel",
"model": "MacBookAir5,2",
"mhz": 2000,
"total_cores": 4,
"total_sockets": 4,
"cores_per_socket": 16,
"cache_size": "256b",
"cache_size_in_bytes": 256,
"count": 1
}
]
},
"process": {
"cpu": {
"percent": 3
},
"open_file_descriptors": {
"min": 200,
"max": 346,
"avg": 273
}
},
"jvm": {
"max_uptime": "24s",
"max_uptime_in_millis": 24054,
"version": [
{
"version": "1.6.0_45",
"vm_name": "Java HotSpot(TM) 64-Bit Server VM",
"vm_version": "20.45-b01-451",
"vm_vendor": "Apple Inc.",
"count": 2
}
],
"mem": {
"heap_used": "38.3mb",
"heap_used_in_bytes": 40237120,
"heap_max": "1.9gb",
"heap_max_in_bytes": 2130051072
},
"threads": 89
},
"fs":
{
"total": "232.9gb",
"total_in_bytes": 250140434432,
"free": "31.3gb",
"free_in_bytes": 33705881600,
"available": "31.1gb",
"available_in_bytes": 33443737600,
"disk_reads": 21202753,
"disk_writes": 27028840,
"disk_io_op": 48231593,
"disk_read_size": "528gb",
"disk_read_size_in_bytes": 566980806656,
"disk_write_size": "617.9gb",
"disk_write_size_in_bytes": 663525366784,
"disk_io_size": "1145.9gb",
"disk_io_size_in_bytes": 1230506173440
},
"plugins": [
// all plugins installed on nodes
{
"name": "inquisitor",
"description": "",
"url": "/_plugin/inquisitor/",
"jvm": false,
"site": true
}
]
}
}
--------------------------------------------------
|
