Elasticsearch 介绍 Elasticsearch 7:快速上手 Elasticsearch 7:关于 Index、Type、Document Elasticsearch 7:安装与启动 Elasticsearch 7:Kibana 的使用 Elasticsearch 7:下载历史版本 Elasticsearch 7:文档唯一性 Elasticsearch 7:默认端口与端口设置 Elasticsearch 7:创建和删除索引 Elasticsearch 7:自定义 mapping 和 settings Elasticsearch 7:设置索引副本数量和分片数量 Elasticsearch 7:查看所有索引 Elasticsearch 7:数据类型 Elasticsearch 7:字符串类型 keyword 、text Elasticsearch 7:数组 Elasticsearch 7:添加和更新文档 Elasticsearch 7:通过 _bulk 批量添加文档 Elasticsearch 7:使用 from 、size 进行分页查询 Elasticsearch 7:查询中使用 sort 进行排序 Elasticsearch 7:查询结果只展示部分字段 Elasticsearch 7:查询结果中展示 _version 字段 Elasticsearch 7:使用 ignore_above 限制字符串长度 Elasticsearch 7:动态映射 Elasticsearch 7:doc_values 属性 Elasticsearch 7:刷新周期 refresh_interval Elasticsearch 7:使用 _refresh 刷新索引 Elasticsearch 7:分片(shard)限制 Elasticsearch 7:使用 _cat thread_pool 查询线程池运行情况 Elasticsearch 7:事务日志 translog Elasticsearch 7:文档 _id 的长度限制 Elasticsearch 7:分片 shard Elasticsearch 7:滚动查询 Elasticsearch 7:聚合查询 Elasticsearch 7:索引模板 Elasticsearch 7:获取文档所属的 shard Elasticsearch 7:获取版本号 Elasticsearch 7:获取指定 shard 中的文档 Elasticsearch 7:获取 shard 统计信息 Elasticsearch 7:搜索实战 Elasticsearch 7:Python 客户端 Elasticsearch 7:Java TransportClient API 客户端 Elasticsearch 7:Java REST Client API 客户端 Elasticsearch:将 SQL 转换为 DSL Elasticsearch 6 快速上手 Elasticsearch 5 快速上手 Elasticsearch 5:禁止自动创建索引 Elasticsearch 5:禁止动态增加字段 Elasticsearch 产品版本支持周期 基于 Elasticsearch 的站内搜索引擎实战

Elasticsearch 7:获取 shard 统计信息


#Elasticsearch


使用GET _cat/shards/<index-name>?v 即可。

示例

数据准备

# 创建索引
PUT student
{
  "mappings" : {
    "properties" : {
      "uid": {
        "type" : "integer"
      },
      "name" : {
        "type" : "keyword"
      },
      "age" : {
        "type" : "integer"
      }
    }
  },
  "settings" : {
    "index" : {
      "number_of_shards" : 10,
      "number_of_replicas" : 1
    }
  }
}

# 插入数据
POST student/_doc/1?routing=1
{
  "uid": 1,
  "name": "张三",
  "age": 10
}

# 插入数据
POST student/_doc/2?routing=2
{
  "uid": 2,
  "name": "张三",
  "age": 10
}

查询每个 shard 的统计信息

请求:

GET _cat/shards/student?v

响应:

index   shard prirep state      docs store ip        node
student 2     p      STARTED       0  208b 127.0.0.1 DESKTOP-xxxxxx
student 2     r      UNASSIGNED                      
student 4     p      STARTED       0  208b 127.0.0.1 DESKTOP-xxxxxx
student 4     r      UNASSIGNED                      
student 8     p      STARTED       1 4.1kb 127.0.0.1 DESKTOP-xxxxxx
student 8     r      UNASSIGNED                      
student 7     p      STARTED       1 4.1kb 127.0.0.1 DESKTOP-xxxxxx
student 7     r      UNASSIGNED                      
student 6     p      STARTED       0  208b 127.0.0.1 DESKTOP-xxxxxx
student 6     r      UNASSIGNED                      
student 3     p      STARTED       0  208b 127.0.0.1 DESKTOP-xxxxxx
student 3     r      UNASSIGNED                      
student 5     p      STARTED       0  208b 127.0.0.1 DESKTOP-xxxxxx
student 5     r      UNASSIGNED                      
student 9     p      STARTED       0  208b 127.0.0.1 DESKTOP-xxxxxx
student 9     r      UNASSIGNED                      
student 1     p      STARTED       0  208b 127.0.0.1 DESKTOP-xxxxxx
student 1     r      UNASSIGNED                      
student 0     p      STARTED       0  208b 127.0.0.1 DESKTOP-xxxxxx
student 0     r      UNASSIGNED                      


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