集群管理
查看节点信息 root@netkiller /var/log/elasticsearch % curl -XGET localhost:9200/ { "name" : "node-1", "cluster_name" : "elasticsearch", "cluster_uuid" : "I7jirJ2yTr-f2qrBNorQYA", "version" : { "number" : "5.6.0", "build_hash" : "781a835", "build_date" : "2017-09-07T03:09:58.087Z", "build_snapshot" : false, "lucene_version" : "6.6.0" }, "tagline" : "You Know, for Search" } 8.5.1.节点健康状态 root@netkiller ~ % curl 'http://localhost:9200/_cat/health?v' epoch timestamp cluster status node.total node.data shards pri relo init unassign pending_tasks max_task_wait_time active_shards_percent 1502445967 18:06:07 my-application yellow 2 2 17 11 0 0 5 0 - 77.3% root@netkiller ~ % curl 'http://localhost:9200/_cluster/health' {"cluster_name":"my-application","status":"yellow","timed_out":false,"number_of_nodes":2,"number_of_data_nodes":2,"active_primary_shards":11,"active_shards":17,"relocating_shards":0,"initializing_shards":0,"unassigned_shards":5,"delayed_unassigned_shards":0,"number_of_pending_tasks":0,"number_of_in_flight_fetch":0,"task_max_waiting_in_queue_millis":0,"active_shards_percent_as_number":77.27272727272727} 8.5.2.节点http状态 root@netkiller ~ % curl 'localhost:9200/_nodes/stats/http?pretty' { "_nodes" : { "total" : 2, "successful" : 2, "failed" : 0 }, "cluster_name" : "my-application", "nodes" : { "-lnKCmBXRpiwExLns0jc9g" : { "timestamp" : 1502446878773, "name" : "node-1", "transport_address" : "10.104.3.2:9300", "host" : "10.104.3.2", "ip" : "10.104.3.2:9300", "roles" : [ "master", "data", "ingest" ], "http" : { "current_open" : 4, "total_opened" : 29 } }, "WVsgYi2HT8GWnZU1kUwFwA" : { "timestamp" : 1502446878782, "name" : "node-2", "transport_address" : "10.186.7.221:9300", "host" : "10.186.7.221", "ip" : "10.186.7.221:9300", "roles" : [ "master", "data", "ingest" ], "http" : { "current_open" : 0, "total_opened" : 2 } } } } 8.5.3.查看master节点 root@netkiller ~ % curl 'http://localhost:9200/_cat/nodes?v' ip heap.percent ram.percent cpu load_1m load_5m load_15m node.role master name 10.104.3.2 31 98 50 0.20 0.55 0.61 mdi - node-1 10.186.7.221 25 99 0 0.00 0.01 0.05 mdi * node-2 8.5.4.查看索引的节点分布 root@netkiller ~ % curl 'http://localhost:9200/_cat/shards?v' index shard prirep state docs store ip node logstash-api 1 p STARTED 103 342kb 10.186.7.221 node-2 logstash-api 1 r STARTED 103 342kb 10.104.3.2 node-1 logstash-api 3 p STARTED 104 404.1kb 10.186.7.221 node-2 logstash-api 3 r STARTED 104 404.1kb 10.104.3.2 node-1 logstash-api 4 p STARTED 117 349.2kb 10.186.7.221 node-2 logstash-api 4 r STARTED 117 349.2kb 10.104.3.2 node-1 logstash-api 2 p STARTED 113 405.8kb 10.186.7.221 node-2 logstash-api 2 r STARTED 113 405.8kb 10.104.3.2 node-1 logstash-api 0 p STARTED 128 488.4kb 10.186.7.221 node-2 logstash-api 0 r STARTED 128 488.4kb 10.104.3.2 node-1 .kibana 0 p STARTED 5 31.2kb 10.186.7.221 node-2 .kibana 0 r STARTED 5 31.2kb 10.104.3.2 node-1 information 1 p STARTED 10 122.3kb 10.104.3.2 node-1 information 1 r UNASSIGNED information 3 p STARTED 7 159.6kb 10.104.3.2 node-1 information 3 r UNASSIGNED information 4 p STARTED 8 86.1kb 10.104.3.2 node-1 information 4 r UNASSIGNED information 2 p STARTED 11 160kb 10.104.3.2 node-1 information 2 r UNASSIGNED information 0 p STARTED 9 202.8kb 10.104.3.2 node-1 information 0 r UNASSIGNED 8.5.5.索引的开启与关闭 POST /{index}/_close 关闭索引 POST /{index}/_open 打开索引 8.5.5.1._open root@netkiller /var/log/elasticsearch % curl 'http://localhost:9200/_cat/indices?v' health status index uuid pri rep docs.count docs.deleted store.size pri.store.size close information oygxIi-dR1eB9NoIZtJrxQ green open logstash-spring 9xXtt_L0QvKHibXFH5gjJQ 5 1 4622 0 62.9mb 31.4mb green open .kibana 9jBBaOomTO2EakZlZqnE-g 1 1 10 0 36.6kb 18.3kb root@netkiller /var/log/elasticsearch % curl -XPOST 'http://localhost:9200/information/_open' {"acknowledged":true}# root@netkiller /var/log/elasticsearch % curl 'http://localhost:9200/_cat/indices?v' health status index uuid pri rep docs.count docs.deleted store.size pri.store.size green open information oygxIi-dR1eB9NoIZtJrxQ 5 1 2417 5 34.5mb 17.3mb green open logstash-spring 9xXtt_L0QvKHibXFH5gjJQ 5 1 4622 0 62.9mb 31.4mb green open .kibana 9jBBaOomTO2EakZlZqnE-g 1 1 10 0 36.6kb 18.3kb 8.5.5.2._close root@netkiller /var/log/elasticsearch % curl -XPOST 'http://localhost:9200/information/_close' {"acknowledged":true}# 原文出处：Netkiller 系列 手札 本文作者：陈景峯 转载请与作者联系，同时请务必标明文章原始出处和作者信息及本声明。
