_cat系列命令提供了一系列查询elasticsearch集群状态的接口。你可以通过执行下面请求，获取所有_cat系列操作
curl -XGET localhost: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}
可以通过在命令后面加 ?v的方式打印表头，如
curl -XGET 127.0.0.1:9200/_cat/master?v
返回：
id host ip node iBophuJTRdiZAZ7hWKWBeA 127.0.0.1 127.0.0.1 node-1_cluster系列
1、查询设置集群状态
curl -XGET localhost:9200/_cluster/health?pretty=true #pretty=true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
2、显示集群系统信息，包括CPU JVM等等
curl -XGET localhost:9200/_cluster/stats?pretty=true
3、集群的详细信息。包括节点、分片等。
curl -XGET localhost:9200/_cluster/state?pretty=true
4、获取集群堆积的任务
curl -XGET localhost:9200/_cluster/pending_tasks?pretty=true
5、修改集群配置,如
curl -XPUT localhost:9200/_cluster/settings -d '{
"persistent" : {
"discovery.zen.minimum_master_nodes" : 2
}
}'
# transient 表示临时的，persistent表示永久的
6、对shard的手动控制，参考http://zhaoyanblog.com/archives/687.html
curl -XPOST ‘localhost:9200/_cluster/reroute’ -d ‘xxxxxx’
7、关闭节点
#关闭指定192.168.1.1节点 curl -XPOST ‘http://192.168.1.1:9200/_cluster/nodes/_local/_shutdown’ curl -XPOST ‘http://localhost:9200/_cluster/nodes/192.168.1.1/_shutdown’ #关闭主节点 curl -XPOST ‘http://localhost:9200/_cluster/nodes/_master/_shutdown’ #关闭整个集群 curl -XPOST ‘http://localhost:9200/_shutdown?delay=10s’ #delay=10s表示延迟10秒关闭 curl -XPOST ‘http://localhost:9200/_cluster/nodes/_shutdown’ curl -XPOST ‘http://localhost:9200/_cluster/nodes/_all/_shutdown’_nodes系列
curl -XGET ‘http://localhost:9200/_nodes/stats?pretty=true’ curl -XGET ‘http://localhost:9200/_nodes/192.168.1.2/stats?pretty=true’ curl -XGET ‘http://localhost:9200/_nodes/process’ curl -XGET ‘http://localhost:9200/_nodes/_all/process’ curl -XGET ‘http://localhost:9200/_nodes/192.168.1.2,192.168.1.3/jvm,process’ curl -XGET ‘http://localhost:9200/_nodes/192.168.1.2,192.168.1.3/info/jvm,process’ curl -XGET ‘http://localhost:9200/_nodes/192.168.1.2,192.168.1.3/_all curl -XGET ‘http://localhost:9200/_nodes/hot_threads索引操作
1.创建索引
curl -H "Content-Type:application/json" -XPUT 'http://127.0.0.1:9200/{index}' -d
'{
"settings": {
"index": {
"number_of_shards": "1",
"number_of_replicas": "1"
}
},
"mappings": {
"{type}": {
"dynamic": "strict",
"properties": {
"date": {
"type": "long"
},
"name": {
"type": "string",
"index": "not_analyzed"
},
"status": {
"type": "integer"
},
"type": {
"type": "integer"
}
}
}
}
}'
2、获取索引
curl -XGET ‘http://localhost:9200/{index}/{type}/{id}’
3、索引数据
curl -XPOST ‘http://localhost:9200/{index}/{type}/{id}’ -d'{“a”:”avalue”,”b”:”bvalue”}’
4、删除索引
curl -XDELETe ‘http://localhost:9200/{index}/{type}/{id}’
5、设置mapping
curl -XPUT http://localhost:9200/{index}/{type}/_mapping -d '{
"{type}" : {
"properties" : {
"date" : {
"type" : "long"
},
"name" : {
"type" : "string",
"index" : "not_analyzed"
},
"status" : {
"type" : "integer"
},
"type" : {
"type" : "integer"
}
}
}
}'
6、查看索引setting
curl -XGET 127.0.0.1:9200/{index}/{type}/settings
7.索引数据备份
#先创建一个相同的索引，可以设置分片为1（防止复制时间过长）
curl -H "Content-Type:application/json" -XPOST 'http://localhost:9200/_reindex' -d '{"source":{"index":"tbl_stdmpool_store_inf"},"dest":{"index":"tbl_stdmpool_store_inf_copy"}}'
8.查询
curl -H "Content-Type:application/json" -XGET 'http://localhost:9200/{index}/{type}/_search' -d '{
"query" : {
"term" : { "user" : "kimchy" } //查所有 "match_all": {}
},
"sort" : [{ "age" : {"order" : "asc"}},{ "name" : "desc" } ],
"from":0,
"size":100
}'
curl -H "Content-Type:application/json" -XGET 'http://localhost:9200/{index}/{type}/_search' -d '{
"filter": {"and":{"filters":[{"term":{"age":"123"}},{"term":{"name":"张三"}}]},
"sort" : [{ "age" : {"order" : "asc"}},{ "name" : "desc" } ],
"from":0,
"size":100
}'
9.开启x-pack认证后查询
# 需要在请求是增加用户密码参数 -u user:password 或者（--user user:password）
curl -H "Content-Type:application/json" --user user:password -XGET 'http://localhost:9200/{index}/{type}/_search' -d '{
"query" : {
"term" : { "user" : "kimchy" } //查所有 "match_all": {}
},
"sort" : [{ "age" : {"order" : "asc"}},{ "name" : "desc" } ],
"from":0,
"size":100
}'
curl -H "Content-Type:application/json" -u user:password -XGET 'http://localhost:9200/{index}/{type}/_search' -d '{
"filter": {"and":{"filters":[{"term":{"age":"123"}},{"term":{"name":"张三"}}]},
"sort" : [{ "age" : {"order" : "asc"}},{ "name" : "desc" } ],
"from":0,
"size":100
}'
#或者使用如下方式
curl -XGET HTTP://user:password@127.0.0.1:9200/{index}/{type}/_search
10.给索引新增字段
curl -H "Content-Type:application/json" -XPOST "http://127.0.0.1:9200/{index}/{type}/_mapping?pretty" -d '{
"tbl_stdmpool_store_inf_dev": {
"properties": {
"falg": {
"type": "keyword"
}
}
}
}'
11.批量修改索引某个字段的值
curl -H "Content-Type:application/json" -XPOST 'http://127.0.0.1:9200/{index}/{type}/_update_by_query?pretty' -d '{"query":{"bool":{"must_not":{"term":{"flag":"0"}}}},"size":10000,"sort":{"store_id":{"order":"asc"}},"script":{"inline":"ctx._source['''focus_cash''']='''0'''"}}'
