elasticsearch 常用api

获取每个节点的磁盘空间

curl -XGET 'slug:9200/_cat/allocation?v'

查看分片
```
curl -XGET 'slug:9200/_cat/shards?v'
```
查询集群健康状态
```
curl -XGET 'slug:9200/_cat/health?v'
```
查询节点
```
curl -XGET 'slug:9200/_cat/nodes?v'
```
查询索引
```
curl -XGET 'slug:9200/_cat/indices?v'
```

查询索引按store.size大小进行倒排序

curl -XGET 'slug:9200/_cat/indices?v&pretty&s=store.size:desc

利用PUT方法创建索引
```
curl -XPUT 'slug:9200/zzz?pretty'
```

插入数据到集群索引

curl -XPUT --header 'Content-Type: Application/json' 'slug:9200/zzz/external/1?pretty' -d '
{
    "name": "external"
}'


type: external
id: 1

获取刚才插入数据

curl -XGET 'slug:9200/zzz/external/1?pretty'

删除索引

curl -XDELETE 'slug:9200/zzz/external/1'
curl -XGET 'slug:9200/zzz/external/1?v&pretty'

修改数据

curl -XPUT --header 'Content-Type: Application/json' 'slug:9200/zzz/external/1?pretty' -d '
{
    "name": "John Doe"
}'

curl -XGET 'slug:9200/zzz/external/1?pretty'

修改数据

curl -XPUT --header 'Content-Type: Application/json' 'slug:9200/zzz/external/1?pretty' -d '
{
    "name": "Jane Doe"
}'

curl -XGET 'slug:9200/zzz/external/1?pretty'

模糊匹配删除索引

curl --user elastic:password -XDELETE 'slug:9200/indices-1,indices-2

curl --user elastic:password -XDELETE 'slug:9200/indices*'

curl --user elastic:password -XDELETE 'slug:9200/*' # 删除所有索引

30 2 * * * /usr/bin/curl -XDELETE --user elastic:password 'slug:9200/*-$(date -d '7 days ago' +%Y-%m-%d) >& /dev/null # 定时任务清除7天前indices

索引的增删改查的通用格式

curl -X<REST Verb> <Node>:<Port>/<Index>/<Type>/<ID>
<REST Verb> REST风格的语法谓词
<Node>:Node IP
<Port>:Node Port default:9200
<Index>:Index name
<Type>:Type of index
<ID>:ID number