laradock-elasticsearch启动失败

sudo sysctl -w vm.max_map_count=524288

laradock安装ik分词器

1、进入 laradock/elasticsearch 修改 Dockerfile

ARG ELK_VERSION
FROM elasticsearch:${ELK_VERSION}

# 添加下面一行安装命令
RUN /usr/share/elasticsearch/bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.9.1/elasticsearch-analysis-ik-7.9.1.zip

EXPOSE 9200 9300

注意：ik分词器的版本要和elasticsearch的版本是一致的，不然会报错.

可以先通过 docker images | grep elassticsearch 查看一下search的版本

---

考虑到在我天朝下载github的东西会比较慢，可以先下载ik再copy进去

mkdir -p pathto/laradock/elasticsearch/plugins

|-- Dockerfile
`-- plugins
    `-- elasticsearch-analysis-ik-7.9.1.zip

修改 elasticsearch/Dockerfile

COPY ./plugins/elasticsearch-analysis-ik-7.9.1.zip /usr/share/elasticsearch/plugins

2、重新 build

docker-compose build elasticsearch

3、最后，查看是否安装成功：

docker-compose exec elasticsearch /usr/share/elasticsearch/bin/elasticsearch-plugin list

ik分词器Github：https://github.com/medcl/elasticsearch-analysis-ik/tree/v7.9.1

跨域

修改 elasticsearch/Dockerfile

RUN cat <<<
http.cors.enabled: true
http.cors.allow-origin: "*"
>>> >> /usr/share/elasticsearch/config/elasticsearch.yml

分布式部署

server1

http.port: 8300
cluster.name: search //标识集群
node.name: master
node.master: true

node1

http.port: 8301
cluster.name: search //标识集群
node.name: node1
node.master: false
discovery.zen.ping.unicast.hosts: ["127.0.0.1"] // 自动发现主节点

字段类型

keyword 类型的字段不会被分词

match 会使用分词器

精确匹配

GET arc/_search
{
  "query": {
    "term": {
      "name": "张三 王五"
    }
  }
}

模糊查询

多个条件使用空格分开

GET arc/_search
{
  "query": {
    "match": {
      "name": "张三 王五"
    }
  }
}

字段限制

"_source": ["name","age"]

GET arc/_search
{
  "query": {
    "match": {
      "name": "王三"
    }
  },
  "_source": ["name","age"]
}

排序

GET arc/_search
{
  "query": {
    "match": {
      "name": "王三"
    }
  },
  "sort": [
    {
      "age": {
        "order": "desc"
      }
    }
  ]
}

分页

form: 起始值

size: limit

GET arc/_search
{
  "query": {
    "match": {
      "name": "王三"
    }
  },
  "from": 0,
  "size": 2
}