curl -XGET es1.grey:9200/_cluster/stats
so here's the output:
{"timestamp":1418913590962,"cluster_name":"gc-pb-grey","status":"green","indices":{"count":31,"shards":{"total":252,"primaries":126,"replication":1.0,"index":{"shards":{"min":4,"max":10,"avg":8.129032258064516},"primaries":{"min":2,"max":5,"avg":4.064516129032258},"replication":{"min":1.0,"max":1.0,"avg":1.0}}},"docs":{"count":162713289,"deleted":188051},"store":{"size":"44.2gb","size_in_bytes":47543046975,"throttle_time":"1.9d","throttle_time_in_millis":172301216},"fielddata":{"memory_size":"2.6gb","memory_size_in_bytes":2858909795,"evictions":0},"filter_cache":{"memory_size":"4.8gb","memory_size_in_bytes":5161692177,"evictions":504563},"id_cache":{"memory_size":"0b","memory_size_in_bytes":0},"completion":{"size":"0b","size_in_bytes":0},"segments":{"count":2000,"memory":"2.9gb","memory_in_bytes":3169080575}},"nodes":{"count":{"total":8,"master_only":0,"data_only":0,"master_data":8,"client":0},"versions":["0.90.12"],"os":{"available_processors":32,"mem":{"total":"188.7gb","total_in_bytes":202616012800},"cpu":[{"vendor":"AMD","model":"Opteron","mhz":2599,"total_cores":4,"total_sockets":4,"cores_per_socket":1,"cache_size":"512b","cache_size_in_bytes":512,"count":8}]},"process":{"cpu":{"percent":115},"open_file_descriptors":{"min":1356,"max":1537,"avg":1429}},"jvm":{"max_uptime":"8d","max_uptime_in_millis":693602733,"versions":[{"version":"1.6.0_30","vm_name":"OpenJDK 64-Bit Server VM","vm_version":"23.25-b01","vm_vendor":"Sun Microsystems Inc.","count":8}],"mem":{"heap_used":"59.5gb","heap_used_in_bytes":63949850024,"heap_max":"127.7gb","heap_max_in_bytes":137160032256},"threads":621},"fs":{"total":"94.4gb","total_in_bytes":101461655552,"free":"48.9gb","free_in_bytes":52530081792,"available":"44.1gb","available_in_bytes":47376134144,"disk_reads":570224,"disk_writes":164405664,"disk_io_op":164975888,"disk_read_size":"16.1gb","disk_read_size_in_bytes":17347735552,"disk_write_size":"612.6gb","disk_write_size_in_bytes":657792794624,"disk_io_size":"628.7gb","disk_io_size_in_bytes":675140530176,"disk_queue":"0","disk_service_time":"0.9"},"plugins":[{"name":"bigdesk","description":"No description found for bigdesk.","url":"/_plugin/bigdesk/","jvm":false,"site":true},{"name":"hq","description":"No description found for hq.","url":"/_plugin/hq/","jvm":false,"site":true},{"name":"head","description":"No description found for head.","url":"/_plugin/head/","jvm":false,"site":true}]}}
Quite human unreadable. Let's try now with jq:curl -XGET es1.grey:9200/_cluster/stats | jq "."
Seems more elegant now:
{
"nodes": {
"plugins": [
{
"site": true,
"jvm": false,
"url": "/_plugin/bigdesk/",
"description": "No description found for bigdesk.",
"name": "bigdesk"
},
{
"site": true,
"jvm": false,
"url": "/_plugin/hq/",
"description": "No description found for hq.",
"name": "hq"
},
{
"site": true,
"jvm": false,
"url": "/_plugin/head/",
"description": "No description found for head.",
"name": "head"
}
],
"fs": {
"disk_service_time": "0.3",
"disk_writes": 164465520,
"disk_reads": 570266,
"available_in_bytes": 47369240576,
"available": "44.1gb",
"free_in_bytes": 52523188224,
"free": "48.9gb",
"total_in_bytes": 101461655552,
"total": "94.4gb",
"disk_io_op": 165035786,
"disk_read_size": "16.1gb",
"disk_read_size_in_bytes": 17348456448,
"disk_write_size": "612.8gb",
"disk_write_size_in_bytes": 658024804352,
"disk_io_size": "628.9gb",
"disk_io_size_in_bytes": 675373260800,
"disk_queue": "8.3E-5"
},
"jvm": {
"threads": 621,
"mem": {
"heap_max_in_bytes": 137160032256,
"heap_max": "127.7gb",
"heap_used_in_bytes": 53713885664,
"heap_used": "50gb"
},
"versions": [
{
"count": 8,
"vm_vendor": "Sun Microsystems Inc.",
"vm_version": "23.25-b01",
"vm_name": "OpenJDK 64-Bit Server VM",
"version": "1.6.0_30"
}
],
"max_uptime_in_millis": 694176092,
"max_uptime": "8d"
},
"process": {
"open_file_descriptors": {
"avg": 1432,
"max": 1546,
"min": 1355
},
"cpu": {
"percent": 134
}
},
"os": {
"cpu": [
{
"count": 8,
"vendor": "AMD",
"model": "Opteron",
"mhz": 2599,
"total_cores": 4,
"total_sockets": 4,
"cores_per_socket": 1,
"cache_size": "512b",
"cache_size_in_bytes": 512
}
],
"mem": {
"total_in_bytes": 202616012800,
"total": "188.7gb"
},
"available_processors": 32
},
"versions": [
"0.90.12"
],
"count": {
"client": 0,
"master_data": 8,
"data_only": 0,
"master_only": 0,
"total": 8
}
},
"indices": {
"segments": {
"memory_in_bytes": 3169089995,
"memory": "2.9gb",
"count": 2023
},
"count": 31,
"shards": {
"index": {
"replication": {
"avg": 1,
"max": 1,
"min": 1
},
"primaries": {
"avg": 4.064516129032258,
"max": 5,
"min": 2
},
"shards": {
"avg": 8.129032258064516,
"max": 10,
"min": 4
}
},
"replication": 1,
"primaries": 126,
"total": 252
},
"docs": {
"deleted": 188053,
"count": 162713334
},
"store": {
"throttle_time_in_millis": 172306131,
"throttle_time": "1.9d",
"size_in_bytes": 47552519067,
"size": "44.2gb"
},
"fielddata": {
"evictions": 0,
"memory_size_in_bytes": 2858939869,
"memory_size": "2.6gb"
},
"filter_cache": {
"evictions": 504563,
"memory_size_in_bytes": 5181806342,
"memory_size": "4.8gb"
},
"id_cache": {
"memory_size_in_bytes": 0,
"memory_size": "0b"
},
"completion": {
"size_in_bytes": 0,
"size": "0b"
}
},
"status": "green",
"cluster_name": "gc-pb-grey",
"timestamp": 1418914164326
}
Ok, this does not changes much however, it's easy to get json formatted. But try this:
curl -XGET es1.grey:9200/_cluster/stats | jq ".nodes.jvm"
and we get:
{
"threads": 619,
"mem": {
"heap_max_in_bytes": 137160032256,
"heap_max": "127.7gb",
"heap_used_in_bytes": 54125025648,
"heap_used": "50.4gb"
},
"versions": [
{
"count": 8,
"vm_vendor": "Sun Microsystems Inc.",
"vm_version": "23.25-b01",
"vm_name": "OpenJDK 64-Bit Server VM",
"version": "1.6.0_30"
}
],
"max_uptime_in_millis": 694408309,
"max_uptime": "8d"
}
I took the outer object by first dot, 'nodes' property, and from inside it 'jvm' property.
It is now trivial to get actual jvm version:
curl -XGET es1.grey:9200/_cluster/stats | jq ".nodes.jvm.versions[0].version"
Tadam:
"1.6.0_30"
