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"
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