elasticsearch中api详解

Posted 2020-09-18

一、cluster API详解

1、cluster health（获取集群的状态）

集群状态：

　　　green：绿色表示所有的碎片都被分配

　　　yellow：黄色表示主碎片被分配，但副本不是

　　    red：表示特定的碎片没有在集群中分配

请求参数

　　level: cluster,indices,shards

　　wait_for_status: green,yellow,red

[[email protected] ~]# curl -XGET ‘http://10.2.11.225:9200/_cluster/health/tomcat-access-log-2017.05.11?level=shards&pretty‘ -u adminName -p

2、索引状态（cluster state）

2.1）nodes（节点状态）

2.2）显示主节点状态（master_node）

3、集群数据（cluster stats）

[[email protected] ~]# curl -XGET ‘http://10.2.11.225:9200/_cluster/stats?human&pretty‘ -u adminName -p
Enter host password for user ‘adminName‘:
{
  "timestamp" : 1494680352006,
  "cluster_name" : "myelk",
  "status" : "green",
  "indices" : {
    "count" : 5,
    "shards" : {
      "total" : 42,
      "primaries" : 21,
      "replication" : 1.0,
      "index" : {
        "shards" : {
          "min" : 2,
          "max" : 10,
          "avg" : 8.4
        },
        "primaries" : {
          "min" : 1,
          "max" : 5,
          "avg" : 4.2
        },
        "replication" : {
          "min" : 1.0,
          "max" : 1.0,
          "avg" : 1.0
        }
      }
    },
    "docs" : {
      "count" : 11047,
      "deleted" : 0
    },
    "store" : {
      "size" : "6.4mb",
      "size_in_bytes" : 6802156,
      "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" : 144823,
      "hit_count" : 0,
      "miss_count" : 144823,
      "cache_size" : 0,
      "cache_count" : 0,
      "evictions" : 0
    },
    "completion" : {
      "size" : "0b",
      "size_in_bytes" : 0
    },
    "segments" : {
      "count" : 213,
      "memory" : "1.3mb",
      "memory_in_bytes" : 1367681,
      "terms_memory" : "1mb",
      "terms_memory_in_bytes" : 1049853,
      "stored_fields_memory" : "65.7kb",
      "stored_fields_memory_in_bytes" : 67360,
      "term_vectors_memory" : "0b",
      "term_vectors_memory_in_bytes" : 0,
      "norms_memory" : "199.3kb",
      "norms_memory_in_bytes" : 204096,
      "doc_values_memory" : "45.2kb",
      "doc_values_memory_in_bytes" : 46372,
      "index_writer_memory" : "0b",
      "index_writer_memory_in_bytes" : 0,
      "index_writer_max_memory" : "20.5mb",
      "index_writer_max_memory_in_bytes" : 21504000,
      "version_map_memory" : "0b",
      "version_map_memory_in_bytes" : 0,
      "fixed_bit_set" : "0b",
      "fixed_bit_set_memory_in_bytes" : 0
    },
    "percolate" : {
      "total" : 0,
      "time" : "0s",
      "time_in_millis" : 0,
      "current" : 0,
      "memory_size_in_bytes" : -1,
      "memory_size" : "-1b",
      "queries" : 0
    }
  },
  "nodes" : {
    "count" : {
      "total" : 3,
      "master_only" : 0,
      "data_only" : 0,
      "master_data" : 3,
      "client" : 0
    },
    "versions" : [ "2.3.3" ],
    "os" : {
      "available_processors" : 3,
      "allocated_processors" : 3,
      "mem" : {
        "total" : "312.1mb",
        "total_in_bytes" : 327274496
      },
      "names" : [ {
        "name" : "Linux",
        "count" : 3
      } ]
    },
    "process" : {
      "cpu" : {
        "percent" : 0
      },
      "open_file_descriptors" : {
        "min" : 266,
        "max" : 281,
        "avg" : 272
      }
    },
    "jvm" : {
      "max_uptime" : "2.1d",
      "max_uptime_in_millis" : 188337407,
      "versions" : [ {
        "version" : "1.8.0_111",
        "vm_name" : "Java HotSpot(TM) 64-Bit Server VM",
        "vm_version" : "25.111-b14",
        "vm_vendor" : "Oracle Corporation",
        "count" : 3
      } ],
      "mem" : {
        "heap_used" : "203.7mb",
        "heap_used_in_bytes" : 213674160,
        "heap_max" : "2.9gb",
        "heap_max_in_bytes" : 3195076608
      },
      "threads" : 88
    },
    "fs" : {
      "total" : "40.7gb",
      "total_in_bytes" : 43701583872,
      "free" : "27.1gb",
      "free_in_bytes" : 29138677760,
      "available" : "25gb",
      "available_in_bytes" : 26898292736,
      "spins" : "true"
    },
    "plugins" : [ {
      "name" : "head",
      "version" : "master",
      "description" : "head - A web front end for an elastic search cluster",
      "url" : "/_plugin/head/",
      "jvm" : false,
      "site" : true
    }, {
      "name" : "license",
      "version" : "2.3.3",
      "description" : "Internal Elasticsearch Licensing Plugin",
      "jvm" : true,
      "classname" : "org.elasticsearch.license.plugin.LicensePlugin",
      "isolated" : false,
      "site" : false
    }, {
      "name" : "shield",
      "version" : "2.3.3",
      "description" : "Elasticsearch Shield (security)",
      "jvm" : true,
      "classname" : "org.elasticsearch.shield.ShieldPlugin",
      "isolated" : false,
      "site" : false
    } ]
  }
}
[[email protected] ~]# curl -XGET ‘http://10.2.11.225:9200/_nodes/stats/indices?pretty‘ -u adminName -p----统计节点信息

二、CAT API

1、master---查找主节点

[[email protected] ~]# curl -XGET ‘http://10.2.11.225:9200/_cat/master?pretty&v‘ -u adminName -p
Enter host password for user ‘adminName‘:
id                     host        ip          node  
PbiopqxtST6qDZ5x9Oo9dw 10.2.11.230 10.2.11.230 elk01
2、nodes---节点信息

查看帮助：?help

指定相应的列：?h=列名 如：GET /_cat/nodes?v&h=id,ip,port,v,m

 

3、indices索引

4、health

[[email protected] ~]# curl -XGET ‘http://10.2.11.225:9200/_cat/health?v‘ -u adminName -p
Enter host password for user ‘adminName‘:
epoch      timestamp cluster status node.total node.data shards pri relo init unassign pending_tasks max_task_wait_time active_shards_percent
1494682040 21:27:20  myelk   green           3         3     42  21    0    0        0             0                  -                100.0%
5、shard--分片信息

[[email protected] ~]# curl -XGET ‘http://10.2.11.225:9200/_cat/shards?v‘ -u adminName -p
Enter host password for user ‘adminName‘:
index                            shard prirep state   docs   store ip          node  
tomcat-system-message-2017.05.11 2     p      STARTED 1459 345.7kb 10.2.11.231 elk02
tomcat-system-message-2017.05.11 2     r      STARTED 1459 345.5kb 10.2.11.225 elk03
tomcat-system-message-2017.05.11 3     r      STARTED 1395 316.6kb 10.2.11.225 elk03
tomcat-system-message-2017.05.11 3     p      STARTED 1395 316.6kb 10.2.11.230 elk01
tomcat-system-message-2017.05.11 4     r      STARTED 1468 338.8kb 10.2.11.231 elk02
tomcat-system-message-2017.05.11 4     p      STARTED 1468 340.5kb 10.2.11.230 elk01
tomcat-system-message-2017.05.11 1     r      STARTED 1434   346kb 10.2.11.225 elk03
tomcat-system-message-2017.05.11 1     p      STARTED 1434   346kb 10.2.11.230 elk01
tomcat-system-message-2017.05.11 0     p      STARTED 1426 313.4kb 10.2.11.231 elk02
tomcat-system-message-2017.05.11 0     r      STARTED 1426 336.1kb 10.2.11.225 elk03
6、查看常见信息（plugins）

[email protected] ~]# curl -XGET ‘http://10.2.11.225:9200/_cat/plugins?v‘ -u adminName -p
Enter host password for user ‘adminName‘:
name  component version type url            
elk03 license   2.3.3   j                   
elk03 shield    2.3.3   j                   
elk01 head      master  s    /_plugin/head/
elk01 license   2.3.3   j                   
elk01 shield    2.3.3   j                   
elk02 head      master  s    /_plugin/head/
elk02 license   2.3.3   j                   
elk02 shield    2.3.3   j 

三、Search APIs

1、search

[[email protected] ~]# curl -XGET ‘http://10.2.11.225:9200/tomcat-access-log-2017.05.11/_search?v&pretty‘ -u adminName -p