elasticsearch常用命令汇总

技术文章

_cat系列

_cat系列提供了一系列的查询elasticsearch集群状态的API接口。使用下面的命令获取_cat提供的所有API操作。

[root@gy-vm02 ~]# curl gy-vm02:9200/_cat
=^.^=
/_cat/allocation
/_cat/shards
/_cat/shards/{index}
/_cat/master
/_cat/nodes
/_cat/indices
/_cat/indices/{index}
/_cat/segments
/_cat/segments/{index}
/_cat/count
/_cat/count/{index}
/_cat/recovery
/_cat/recovery/{index}
/_cat/health
/_cat/pending_tasks
/_cat/aliases
/_cat/aliases/{alias}
/_cat/thread_pool
/_cat/plugins
/_cat/fielddata
/_cat/fielddata/{fields}
/_cat/nodeattrs
/_cat/repositories
/_cat/snapshots/{repository}

查看集群状态

[root@gy-vm02 ~]# curl gy-vm02:9200/_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 
1478429728 02:55:28  testes  green           3         3     19   8    0    0        0             0                  -                100.0%

查看master节点

[root@gy-vm02 ~]# curl gy-vm02:9200/_cat/master?v
id                     host            ip              node    
cicWUVZWQNm12sf471gscg 192.168.121.182 192.168.121.182 gy-vm04 

-v参数让输出内容表格显示表头

查看集群节点信息

[root@gy-vm02 ~]# curl gy-vm02:9200/_cat/nodes?v
host            ip              heap.percent ram.percent load node.role master name    
192.168.121.180 192.168.121.180            6          69 0.00 d         m      gy-vm02 
192.168.121.181 192.168.121.181            6          98 0.00 d         m      gy-vm03 
192.168.121.182 192.168.121.182            2          99 0.00 d         *      gy-vm04

查看分片信息

[root@gy-vm02 ~]# curl gy-vm02:9200/_cat/shards?v
index   shard prirep state   docs store ip              node    
website 2     r      STARTED    1 3.5kb 192.168.121.181 gy-vm03 
website 2     p      STARTED    1 3.5kb 192.168.121.180 gy-vm02 
website 1     p      STARTED    0  159b 192.168.121.180 gy-vm02 
website 1     r      STARTED    0  159b 192.168.121.182 gy-vm04 
website 4     r      STARTED    0  159b 192.168.121.181 gy-vm03 
website 4     p      STARTED    0  159b 192.168.121.182 gy-vm04 
website 3     r      STARTED    1 3.5kb 192.168.121.181 gy-vm03 
website 3     p      STARTED    1 3.5kb 192.168.121.182 gy-vm04 
website 0     r      STARTED    1 3.4kb 192.168.121.181 gy-vm03 
website 0     p      STARTED    1 3.4kb 192.168.121.180 gy-vm02 
blogs   2     p      STARTED    0  159b 192.168.121.181 gy-vm03 
blogs   2     r      STARTED    0  159b 192.168.121.180 gy-vm02 
blogs   2     r      STARTED    0  159b 192.168.121.182 gy-vm04 
blogs   1     p      STARTED    0  159b 192.168.121.181 gy-vm03 
blogs   1     r      STARTED    0  159b 192.168.121.180 gy-vm02 
blogs   1     r      STARTED    0  159b 192.168.121.182 gy-vm04 
blogs   0     p      STARTED    0  159b 192.168.121.181 gy-vm03 
blogs   0     r      STARTED    0  159b 192.168.121.180 gy-vm02 
blogs   0     r      STARTED    0  159b 192.168.121.182 gy-vm04

查看索引信息

[root@gy-vm02 ~]# curl gy-vm02:9200/_cat/indices?v
health status index   pri rep docs.count docs.deleted store.size pri.store.size 
green  open   website   5   1          3            0     21.7kb         10.8kb 
green  open   blogs     3   2          0            0      1.3kb           477b

_cluster系列

查看集群信息

[root@gy-vm02 ~]# curl -XGET gy-vm02:9200/_cluster/health?pretty
{
  "cluster_name" : "testes",
  "status" : "green",
  "timed_out" : false,
  "number_of_nodes" : 3,
  "number_of_data_nodes" : 3,
  "active_primary_shards" : 8,
  "active_shards" : 19,
  "relocating_shards" : 0,
  "initializing_shards" : 0,
  "unassigned_shards" : 0,
  "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" : 100.0
}

pretty表示格式化输出
level=indices 表示显示索引状态
level=shards 表示显示分片信息

查看集群系统信息（cpu、jvm等）

[root@gy-vm02 ~]# curl gy-vm02:9200/_cluster/stats?pretty

查看集群详细信息（节点、分片）

[root@gy-vm02 ~]# curl gy-vm02:9200/_cluster/state?pretty

关闭集群

[root@gy-vm02 ~]# curl  -XPOST gy-vm02:9200/_shutdown?delay=10s

**关闭单个节点

[root@gy-vm02 ~]# curl -XPOST gy-vm02:9200/_cluster/nodes/nodeId1,nodeId2/_shutdown

_nodes系列

查看节点stats信息

curl gy-vm03:9200/_nodes/stats?pretty

查看单个节点

curl gy-vm03:9200/_nodes/192.168.121.181/stats?pretty

查看process

[root@gy-vm03 ~]# curl gy-vm03:9200/_nodes/_all/process?pretty