OpenSearch/docs/reference/cluster/stats.asciidoc
Boaz Leskes 5ac7bd83ad Expose min/max open file descriptors in Cluster Stats API
Also changes the response format of that section to:

```
 "open_file_descriptors": {
      "min": 200,
      "max": 346,
       "avg": 273
 }
```

Closes #4681

Note: this is an aggregate of 3 commits in the 0.90 branch
2014-01-10 12:15:56 +01:00

171 lines
4.3 KiB
Plaintext

[[cluster-stats]]
== Cluster Stats
added[0.90.8]
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
}
]
}
}
--------------------------------------------------