Ubuntu16.04安装ElasticSearch、Kibana

关于ElasticSearch就不介绍了，文档可以参考官方

1.java安装

sudo apt install openjdk-8-jdk

parallels@parallels-vm:~$ java -version
java version "1.8.0_191"
Java(TM) SE Runtime Environment (build 1.8.0_191-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode)

2.elasticsearch安装

108M大小

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.5.1.tar.gz
tar -xzf elasticsearch-6.5.1.tar.gz
cd elasticsearch-6.5.1/ 

需要校验的话

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.5.1.tar.gz.sha512
shasum -a 512 -c elasticsearch-6.5.1.tar.gz.sha512

运行

./bin/elasticsearch

关闭是ctrl+C
运行一下请求，可以看到如下信息，如果显示连接拒绝可能是localhost设置过不是127.0.0.1，替换localhost为127.0.0.1试试

parallels@parallels-vm:~$ curl 'http://localhost:9200/?pretty'
{
  "name" : "P06U0G2",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "bRWDtULfQc6vFBsmU8sLlA",
  "version" : {
    "number" : "6.5.1",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "8c58350",
    "build_date" : "2018-11-16T02:22:42.182257Z",
    "build_snapshot" : false,
    "lucene_version" : "7.5.0",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

3.kibana

195M，kibana的dev tool提供交互式的控制台，通过浏览器直接向 Elasticsearch 提交请求
需要先安装kibana，下面的步骤错误，正确的往后翻，这里是记录错误

curl -O https://artifacts.elastic.co/downloads/kibana/kibana-6.5.1-darwin-x86_64.tar.gz
tar -xzf kibana-6.5.1-darwin-x86_64.tar.gz
cd kibana-6.5.1-darwin-x86_64/

运行

./bin/kibana

报错

parallels@parallels-vm:~/kibana-6.5.1-darwin-x86_64$ ./bin/kibana
./bin/../node/bin/node: 1: ./bin/../node/bin/node: ����
�H: not found
./bin/../node/bin/node: 2: ./bin/../node/bin/node: 
__ustring__TEXTu,

�: not found
./bin/../node/bin/node: 2: ./bin/../node/bin/node: ���H__PAGEZERO
__TEXT
PJ
PJ
: not found
@: not founde/bin/node: 2: ./bin/../node/bin/node: 

��
./bin/../node/bin/node: 3: ./bin/../node/bin/node: u,
__dof_node__TEXT�,

�,
__unwind_info__TEXT��,

TV
��,
__eh_frame__TEXT��-

�l��-
__DATAPJ

�
                                     PJ
�: not found
./bin/../node/bin/node: 4: ./bin/../node/bin/node: Syntax error: word unexpected (expecting ")")

是没有node？？？
sudo apt install npm
sudo apt install nodejs-legacy
修改bin/kibana

原 NODE="${DIR}/node/bin/node"
修改 NODE="/usr/bin/nodejs"

运行结果

parallels@parallels-vm:~/kibana-6.5.1-darwin-x86_64$ ./bin/kibana
/usr/bin/nodejs: bad option: --no-warnings

版本太低？node 4.2.6 npm 3.5.2
用npm方法升不上

sudo npm install npm@latest -g

这一句坑爹啊，升级了npm但是node还没上去，npm就不能用了啊

parallels@parallels-vm:~$ npm --version
/usr/local/lib/node_modules/npm/bin/npm-cli.js:85
      let notifier = require('update-notifier')({pkg})
      ^^^

SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode
    at exports.runInThisContext (vm.js:53:16)
    at Module._compile (module.js:374:25)
    at Object.Module._extensions..js (module.js:417:10)
    at Module.load (module.js:344:32)
    at Function.Module._load (module.js:301:12)
    at Function.Module.runMain (module.js:442:10)
    at startup (node.js:136:18)
    at node.js:966:3

解决步骤如下

cd /usr/local/lib/node_modules
mv npm/ /tmp/usr_local_lib_node_modules_npm
sudo npm install -g n 
sudo n stable

parallels@parallels-vm:/usr/local/lib/node_modules$ sudo n stable

     install : node-v11.2.0
       mkdir : /usr/local/n/versions/node/11.2.0
       fetch : https://nodejs.org/dist/v11.2.0/node-v11.2.0-linux-x64.tar.gz
######################################################################## 100.0%
   installed : v11.2.0

但是查询node -v还是没变，需要修改/etc/profile，source一下

export NODE_HOME=/usr/local/n/versions/node/11.2.0
export PATH=$NODE_HOME/bin:PATH

全部卸载，apt remove，重新安装
结果是太高了版本，重新装吧，NODE=“/usr/local/n/versions/node/11.2.0”
parallels@parallels-vm:~/kibana-6.5.1-darwin-x86_64$ ./bin/kibana
Kibana does not support the current Node.js version v11.2.0. Please use Node.js v8.11.4.

parallels@parallels-vm:/usr/local/lib/node_modules$ sudo n v8.11.4

     install : node-v8.11.4
       mkdir : /usr/local/n/versions/node/8.11.4
       fetch : https://nodejs.org/dist/v8.11.4/node-v8.11.4-linux-x64.tar.gz
######################################################################## 100.0%
   installed : v8.11.4

重写配置，不是no-warnings的错误了，启动错误

log   [06:56:05.271] [error][reporting] Failed to install browser. See kibana logs for more details.
  log   [06:56:05.280] [error][status][plugin:spaces@6.5.1] Status changed from yellow to red - Failed to extract the phantom.js archive
 error  [06:56:05.289] [fatal][root] ExtractError: Failed to extract the phantom.js archive
    at err (/home/parallels/kibana-6.5.1-darwin-x86_64/node_modules/x-pack/plugins/reporting/server/browsers/extract/unzip.js:14:23)
    at /home/parallels/kibana-6.5.1-darwin-x86_64/node_modules/extract-zip/index.js:20:23
    at /home/parallels/kibana-6.5.1-darwin-x86_64/node_modules/extract-zip/node_modules/yauzl/index.js:29:21
    at FSReqWrap.oncomplete (fs.js:135:15)

 FATAL  ExtractError: Failed to extract the phantom.js archive

npm 5.6.0 node 8.11.4
phantom.js没有找到，有一个phantom_options.js
也许是我装错了,上面装的是darwin版本de，接下来装linux的197M

wget https://artifacts.elastic.co/downloads/kibana/kibana-6.5.1-linux-x86_64.tar.gz
cd 

服了，还真的是装错了的问题，访问
http://localhost:5601/app/kibana

可喜可贺，花了我大半天

4. 外网访问

es装在虚拟机上了，想通过外网访问ip来访问
首先修改config/elasticsearch.yml的network.host: 0.0.0.0(:后一个空格)，重新启动报错

ERROR: [1] bootstrap checks failed
[1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

修改

sudo vim /etc/sysctl.conf//增加以下内容
vm.max_map_count=655360
parallels@parallels-vm:~$ sudo sysctl -p
vm.max_map_count = 655360

重启服务就可以访问到了

5.java api

我用的是Spring boot为整体框架，整合elasticsearch，支持几种不同的客户端
1.REST
两种REST，“low level"和"high level”
依赖 org.elasticsearch.client:elasticsearch-rest-client 客户端 RestClient
https://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/java-rest-low.html
依赖 org.elasticsearch.client:elasticsearch-rest-high-level-client 客户端 RestHighLevelClient
https://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/java-rest-high.html

spring.elasticsearch.rest.uris=http://search.example.com:9200
spring.elasticsearch.rest.username=user
spring.elasticsearch.rest.password=secret

2.Jest
Jest JestClient
https://www.elastic.co/guide/en/elasticsearch/client/java-api/current/index.html

spring.elasticsearch.jest.uris=http://search.example.com:9200
spring.elasticsearch.jest.read-timeout=10000
spring.elasticsearch.jest.username=user
spring.elasticsearch.jest.password=secret

3.sring data
https://docs.spring.io/spring-data/elasticsearch/docs/current/reference/html/
在github上spring-data-elasticsearch有相对全的资料：https://github.com/spring-projects/spring-data-elasticsearch
版本问题,现在装上的是6.5.1，Java内的Spring-data-elasticsearch 3.1.2，对应elasticsearch6.4.2

Spring data elasticsearch	elasticsearch
3.1.x	6.2.2
3.0.x	5.5.0
2.1.x	2.4.0
2.0.x	2.2.0
1.3.x	1.5.2

spring.data.elasticsearch.cluster-nodes=localhost:9300

注入ElasticsearchTemplate或TransportClient

@Component
public class MyBean {

	private final ElasticsearchTemplate template;

	public MyBean(ElasticsearchTemplate template) {
		this.template = template;
	}

	// ...

}