IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Cluster Stats
editCluster Stats
editThe 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).
curl -XGET 'http://localhost:9200/_cluster/stats?human&pretty'
Will return, for example:
{
"timestamp": 1459427693515,
"cluster_name": "elasticsearch",
"status": "green",
"indices": {
"count": 2,
"shards": {
"total": 10,
"primaries": 10,
"replication": 0,
"index": {
"shards": {
"min": 5,
"max": 5,
"avg": 5
},
"primaries": {
"min": 5,
"max": 5,
"avg": 5
},
"replication": {
"min": 0,
"max": 0,
"avg": 0
}
}
},
"docs": {
"count": 10,
"deleted": 0
},
"store": {
"size": "16.2kb",
"size_in_bytes": 16684,
"throttle_time": "0s",
"throttle_time_in_millis": 0
},
"fielddata": {
"memory_size": "0b",
"memory_size_in_bytes": 0,
"evictions": 0
},
"query_cache": {
"memory_size": "0b",
"memory_size_in_bytes": 0,
"total_count": 0,
"hit_count": 0,
"miss_count": 0,
"cache_size": 0,
"cache_count": 0,
"evictions": 0
},
"completion": {
"size": "0b",
"size_in_bytes": 0
},
"segments": {
"count": 4,
"memory": "8.6kb",
"memory_in_bytes": 8898,
"terms_memory": "6.3kb",
"terms_memory_in_bytes": 6522,
"stored_fields_memory": "1.2kb",
"stored_fields_memory_in_bytes": 1248,
"term_vectors_memory": "0b",
"term_vectors_memory_in_bytes": 0,
"norms_memory": "384b",
"norms_memory_in_bytes": 384,
"doc_values_memory": "744b",
"doc_values_memory_in_bytes": 744,
"index_writer_memory": "0b",
"index_writer_memory_in_bytes": 0,
"version_map_memory": "0b",
"version_map_memory_in_bytes": 0,
"fixed_bit_set": "0b",
"fixed_bit_set_memory_in_bytes": 0,
"file_sizes": {}
},
"percolator": {
"num_queries": 0
}
},
"nodes": {
"count": {
"total": 1,
"data": 1,
"coordinating_only": 0,
"master": 1,
"ingest": 1
},
"versions": [
"5.3.3"
],
"os": {
"available_processors": 8,
"allocated_processors": 8,
"names": [
{
"name": "Mac OS X",
"count": 1
}
],
"mem" : {
"total" : "16gb",
"total_in_bytes" : 17179869184,
"free" : "78.1mb",
"free_in_bytes" : 81960960,
"used" : "15.9gb",
"used_in_bytes" : 17097908224,
"free_percent" : 0,
"used_percent" : 100
}
},
"process": {
"cpu": {
"percent": 9
},
"open_file_descriptors": {
"min": 268,
"max": 268,
"avg": 268
}
},
"jvm": {
"max_uptime": "13.7s",
"max_uptime_in_millis": 13737,
"versions": [
{
"version": "1.8.0_74",
"vm_name": "Java HotSpot(TM) 64-Bit Server VM",
"vm_version": "25.74-b02",
"vm_vendor": "Oracle Corporation",
"count": 1
}
],
"mem": {
"heap_used": "57.5mb",
"heap_used_in_bytes": 60312664,
"heap_max": "989.8mb",
"heap_max_in_bytes": 1037959168
},
"threads": 90
},
"fs": {
"total": "200.6gb",
"total_in_bytes": 215429193728,
"free": "32.6gb",
"free_in_bytes": 35064553472,
"available": "32.4gb",
"available_in_bytes": 34802409472
},
"plugins": [
// all plugins installed on nodes
{
"name": "analysis-stempel",
"version": "5.3.3",
"description": "The Stempel (Polish) Analysis plugin integrates Lucene stempel (polish) analysis module into elasticsearch.",
"classname": "org.elasticsearch.plugin.analysis.stempel.AnalysisStempelPlugin"
}
]
}
}