ElasticSearch健康检查和CRUD

最新推荐文章于 2025-06-01 09:02:35 发布

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最新推荐文章于 2025-06-01 09:02:35 发布

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分类专栏： Elasticsearch 文章标签： ES的CRUD ES健康检查

本文链接：https://blog.youkuaiyun.com/paicMis/article/details/82670851

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本文介绍如何在Windows环境下快速搭建Elasticsearch及Kibana，并通过具体实例演示Elasticsearch的基本操作，包括健康检查、索引管理、文档增删改查等。

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目前为了快速的学习ES我们可以在window环境下面搭建ES和kibana
es提供了一套api，叫做cat api，可以查看es中各种各样的数据

健康检查

GET /_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
1536768182 00:03:02  elasticsearch green           1         1      1   1    0    0        0             0                  -                100.0%

green：每个索引的primary shard和replica shard都是active状态的
yellow：每个索引的primary shard都是active状态的，但是部分replica shard不是active状态，处于不可用的状态
red：不是所有索引的primary shard都是active状态的，部分索引有数据丢失了

快速查看集群中有哪些索引

GET _cat/indices?v
health status index   uuid                   pri rep docs.count docs.deleted store.size pri.store.size
green  open   .kibana XtwBcBhyQxKo8eaDeggqPA   1   0          1            0        4kb            4kb

简单的索引操作

PUT /test_index?pretty
{
  "acknowledged": true,
  "shards_acknowledged": true,
  "index": "test_index"
}

health status index      uuid                   pri rep docs.count docs.deleted store.size pri.store.size
green  open   .kibana    XtwBcBhyQxKo8eaDeggqPA   1   0          1            0        4kb            4kb
yellow open   test_index K2ZkCnssRx-GbBpcTQ8oAA   5   1          0            0      1.1kb          1.1kb

删除索引

DELETE /test_index?pretty
{
  "acknowledged": true
}
health status index   uuid                   pri rep docs.count docs.deleted store.size pri.store.size
green  open   .kibana XtwBcBhyQxKo8eaDeggqPA   1   0          1            0        4kb            4kb

ES的CRUD操作
1、新增用户：新增文档，建立索引
es会自动建立index和type，不需要提前创建，而且es默认会对document每个field都建立倒排索引，让其可以被搜索

PUT /index/type/id
{
  "json数据"
}

新增加3条记录

PUT /employee/user/1
{
  "name" : "zhangsan",
   "sez" : "F",
  "china" : 80,
  "addr" : "hunan",
  "join" : ["beijing","shanghai","wuhan"]

}
PUT /employee/user/2
{
  "name" : "lisi",
   "sez" : "M",
  "china" : 90,
  "addr" : "beijing",
  "join" : ["chengdu","shenzhen","wuhan"]

}
PUT /employee/user/3
{
  "name" : "wangwu",
   "sez" : "M",
  "china" : 60,
  "addr" : "xian",
  "join" : ["xiamen","nanning","changsha"]

}

返回的结果

{
  "_index": "employee",
  "_type": "user",
  "_id": "1",
  "_version": 1,
  "result": "created",
  "_shards": {
    "total": 2,
    "successful": 1,
    "failed": 0
  },
  "_seq_no": 0,
  "_primary_term": 1
}

查询用户信息

GET /index/type/id

GET /employee/user/1
{
  "_index": "employee",
  "_type": "user",
  "_id": "1",
  "_version": 1,
  "found": true,
  "_source": {
    "name": "zhangsan",
    "sez": "F",
    "china": 80,
    "addr": "hunan",
    "join": [
      "beijing",
      "shanghai",
      "wuhan"
    ]
  }
}

修改用户信息
PUT /index/type/id 必须带上用户所有的field信息

PUT /employee/user/1
{
  "name" : "zhangsan",
   "sez" : "F",
  "china" : 88,
  "addr" : "hunan",
  "join" : ["beijing","shanghai","wuhan"]

}

返回的结果

{
  "_index": "employee",
  "_type": "user",
  "_id": "1",
  "_version": 2,
  "result": "updated",
  "_shards": {
    "total": 2,
    "successful": 1,
    "failed": 0
  },
  "_seq_no": 1,
  "_primary_term": 1
}

修改用户，更新文档

POST /ecommerce/product/1/_update

POST /employee/user/1/_update
{
  "doc":{
     "join" : ["beijing","shanghai","wuhan"]
  }
  }

{
  "_index": "employee",
  "_type": "user",
  "_id": "1",
  "_version": 2,
  "found": true,
  "_source": {
    "name": "zhangsan",
    "sez": "F",
    "china": 88,
    "addr": "hunan",
    "join": [
      "beijing",
      "shanghai",
      "wuhan"
    ]
  }
}

删除用户：

DELETE /idnex/type/id

DELETE /employee/user/1
{
  "_index": "employee",
  "_type": "user",
  "_id": "1",
  "_version": 3,
  "result": "deleted",
  "_shards": {
    "total": 2,
    "successful": 1,
    "failed": 0
  },
  "_seq_no": 2,
  "_primary_term": 1
}

GET /employee/user/1
{
  "_index": "employee",
  "_type": "user",
  "_id": "1",
  "found": false
}