groupadd esgroup

useradd esuser -g esgroup -p espawd

tar -zxvf elasticsearch-6.4.3.tar.gz -C /home/hadoop/opt/

vim elasticsearch-6.4.3/config/elasticsearch.yml

network.host: 192.168.179.142
http.port: 9200

bootstrap.memory_lock: false
bootstrap.system_call_filter: false

vim /etc/sysctl.conf

vm.max_map_count=262144

* hard nofile 65536
* soft nofile 65536
* soft nproc 2048
* hard nproc 4096　

vi /etc/security/limits.d/90-nproc.conf

cd elasticsearch-6.4.3/bin/

./elasticsearch

{
  "name" : "node-1",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "8okSnhNzRr6Xo233szO0Vg",
  "version" : {
    "number" : "6.3.2",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "053779d",
    "build_date" : "2018-07-20T05:20:23.451332Z",
    "build_snapshot" : false,
    "lucene_version" : "7.3.1",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

异常信息1:expecting token of type [START_OBJECT] but found [VALUE_STRING]]; 

错误原因：elasticsearch.yml 文件内部错误 
解决办法：仔细检查yml文件中的配置项书写格式： （空格）name：（空格）value

---------------------------------------------------------------------------------
异常信息2:java.lang.UnsupportedOperationException: seccomp unavailable: CONFIG_SECCOMP not compiled into kernel, CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER are needed
 错误原因:Centos6不支持SecComp,而ES默认bootstrap.system_call_filter为true进行检测,所以导致检测失败,失败后直接导致ES不能启动
 
解决办法:修改elasticsearch.yml 添加一下内容 ：

bootstrap.memory_lock: false
bootstrap.system_call_filter: false

---------------------------------------------------------------------------------
---------------------------------------------------------------------------------
异常信息3:BindTransportException[Failed to bind to [9300-9400]
解决办法 打开配置文件elasticsearch.yml 将 network.host: 192.168.0.1 修改为本机IP 0.0.0.0


--------------------------------------------------------------------------------------------
异常信息4：max number of threads [1024] for user [lish] likely too low, increase to at least [2048]

解决办法：切换到root用户，进入limits.d目录下修改配置文件。

vi /etc/security/limits.d/90-nproc.conf 

修改如下内容：

* soft nproc 1024

#修改为

* soft nproc 2048

 tar -zxvf kibana-6.4.3-linux-x86_64.tar.gz -C /home/hadoop/opt/kibana/

 vim kibana/kibana-6.4.3-linux-x86_64/config/kibana.yml 

server.port: 5601
server.host: "192.168.179.142"
elasticsearch.url: "http://192.168.179.142:9200"

./kibana

http://192.168.179.142:5601/app/kibana

#test1 索引库的名称

PUT /test1/
{
  "settings": {
     
    "index":{
      #设置默认索引分片个数，默认为5片
      "number_of_shards":5,
       #数据备份数，如果只有一台机器，设置为0
      "number_of_replicas":0
    }
  }
  
}

GET test1  

GET /test1/
--------------------------
GET /test1/_settings

PUT /test1/user/1
{
  "name":"zhangsan",
  "age":32,
  "interests":["music","eat"]
}

#返回信息为以下
{
  "_index": "test1",
  "_type": "user",
  "_id": "1",
  "_version": 1,
  "result": "created",
  "_shards": {
    "total": 1,
    "successful": 1,
    "failed": 0
  },
  "_seq_no": 0,
  "_primary_term": 1
}

POST /test1/user/
{
  "name":"lisi",
  "age":23,
  "interests":["forestry"]
  
}

#返回信息如下

{
  "_index": "test1",
  "_type": "user",
  "_id": "hSE-am4BgZQzNHtis52h",
  "_version": 1,
  "result": "created",
  "_shards": {
    "total": 1,
    "successful": 1,
    "failed": 0
  },
  "_seq_no": 1,
  "_primary_term": 1
}

GET /test1/user/1

GET /test1/user/hSE-am4BgZQzNHtis52h

GET /test1/user/1?_source=age,name

#返回值如下

{
"_index": "test1",
"_type": "user",
"_id": "1",
"_version": 1,
"found": true,
"_source": {
"name": "zhangsan",
"age": 32
}
}

PUT /test1/user/1
{
  
  "name":"wangwu",
  "age":43,
  "interests":["music"]
  
}

#返回值如下
{
  "_index": "test1",
  "_type": "user",
  "_id": "1",
  "_version": 2,
  "result": "updated",
  "_shards": {
    "total": 1,
    "successful": 1,
    "failed": 0
  },
  "_seq_no": 2,
  "_primary_term": 1
}

DELETE /test1/user/1

DELETE /test1

server.port=8080
spring.application.name=springboot-es
#集群名称
spring.data.elasticsearch.cluster-name=moescluster
#集群地址9300端口是集群节点之间通信的端口号
spring.data.elasticsearch.cluster-nodes=192.168.179.142:9300

package com.zf.mo.springbootes.dao;

import com.zf.mo.springbootes.entity.User;
import org.springframework.data.repository.CrudRepository;

public interface UserRepository extends CrudRepository <User,String>{

}

package com.zf.mo.springbootes.entity;

import lombok.Data;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;

import java.io.Serializable;
@Data
@Document(indexName = "mo",type = "user")
public class User implements Serializable {

    @Id
    private String id;
    private String name;
    private String password;
    private Integer age;
    private String gender;

}

package com.zf.mo.springbootes.controller;

import com.zf.mo.springbootes.dao.UserRepository;
import com.zf.mo.springbootes.entity.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class ElasticsearchController {

    @Autowired
    private UserRepository userRepository;

    @PostMapping("/add")
    public User add(@RequestBody User user){
        return userRepository.save(user);
    }

    @RequestMapping("/findById")
    public User findById(String id){
       return  userRepository.findById(id).get();
    }
}

package com.zf.mo.springbootes;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.data.elasticsearch.repository.config.EnableElasticsearchRepositories;

@SpringBootApplication
@EnableElasticsearchRepositories()
public class SpringbootEsApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootEsApplication.class, args);
    }

}