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最近有用到搜索引擎的功能#xff0c;这不得把之前的es过程实践一遍#xff0c;但发现过程坎坷#xff0c;因为版本太低了。
一、安装es 6.8.12 安装过程跟之前写那章日常记录#xff1a;elasticsearch 在linux安装_elasticsearch linux安装-CSDN博客一样#xff0…前言
最近有用到搜索引擎的功能这不得把之前的es过程实践一遍但发现过程坎坷因为版本太低了。
一、安装es 6.8.12 安装过程跟之前写那章日常记录elasticsearch 在linux安装_elasticsearch linux安装-CSDN博客一样安装包下载Elasticsearch 6.8.12 | Elastic。 下载完毕上传到服务器之后直接用tar -zxvf 解压。然后进入config目录编辑elasticsearch.yml文件。 # Elasticsearch Configuration # # NOTE: Elasticsearch comes with reasonable defaults for most settings. # Before you set out to tweak and tune the configuration, make sure you # understand what are you trying to accomplish and the consequences. # # The primary way of configuring a node is via this file. This template lists # the most important settings you may want to configure for a production cluster. # # Please consult the documentation for further information on configuration options: # https://www.elastic.co/guide/en/elasticsearch/reference/index.html # # ---------------------------------- Cluster ----------------------------------- # # Use a descriptive name for your cluster: # cluster.name: es # # ------------------------------------ Node ------------------------------------ # # Use a descriptive name for the node: # node.name: master #cluster.initial_master_nodes: [master] discovery.type: single-node # # Add custom attributes to the node: # #node.attr.rack: r1 # # ----------------------------------- Paths ------------------------------------ # # Path to directory where to store the data (separate multiple locations by comma): # path.data: /home/elasticsearch-6.8.12/to/data # # Path to log files: # path.logs: /home/elasticsearch-6.8.12/to/logs # # ----------------------------------- Memory ----------------------------------- # # Lock the memory on startup: # #bootstrap.memory_lock: true # # Make sure that the heap size is set to about half the memory available # on the system and that the owner of the process is allowed to use this # limit. # # Elasticsearch performs poorly when the system is swapping the memory. # # ---------------------------------- Network ----------------------------------- # # Set the bind address to a specific IP (IPv4 or IPv6): # network.host: 0.0.0.0 # # Set a custom port for HTTP: #http 请求端口 http.port: 9200 #通讯端口 transport.tcp.port: 9300 # # For more information, consult the network module documentation. # # --------------------------------- Discovery ---------------------------------- # #discovery.type: zen #discovery.zen.minimum_master_nodes: 1 # Pass an initial list of hosts to perform discovery when new node is started: # The default list of hosts is [127.0.0.1, [::1]] # #discovery.zen.ping.unicast.hosts: [host1, host2] # # Prevent the split brain by configuring the majority of nodes (total number of master-eligible nodes / 2 1): # #discovery.zen.minimum_master_nodes: # # For more information, consult the zen discovery module documentation. # # # ---------------------------------- Gateway ----------------------------------- # # Block initial recovery after a full cluster restart until N nodes are started: # #gateway.recover_after_nodes: 3 # # For more information, consult the gateway module documentation. # # ---------------------------------- Various ----------------------------------- # # Require explicit names when deleting indices: # #action.destructive_requires_name: true #开启登录校验不开启登录的话两个都关闭掉 xpack.security.enabled: true xpack.security.transport.ssl.enabled: true 配置完毕之后进入es 的bin 目录执行./elasticsearch -d 后台挂起启动。
然后需要初始化一次es密码执行命令./elasticsearch-setup-passwords interactive 会提示每个账号的密码输入这里简单输入123456。
好了在浏览器访问9200提示账号、密码登录输入就可以了 这样就简单设置账号登录成功了
二、程序上连接
springboot maven引入spring-boot-starter-data-elasticsearch 跟随springboot版本这里springboot版本是2.2.5自动引入elasticsearch 3.2.5 ... dependency groupIdorg.springframework.boot/groupId artifactIdspring-boot-starter-data-elasticsearch/artifactId /dependency ... yml配置 spring: application: name: es data: elasticsearch: #这里填真实cluster-name名字 cluster-name: es #这里填真实 cluster-nodes ip端口 cluster-nodes: xxxx:9300 rest: uris: http://xxx:9200 username: elastic password: 123456 这里很坑的是springboot不会自动读取es 账号密码尝试过yml多动配置账号、密码最终还是没生效但是我看es 7.x的springboot是会读取的知道的同学可以说下然后自己写一个配置类读取账号、密码 。
package com.xxxxx.configuration;import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.elasticsearch.config.AbstractElasticsearchConfiguration;
import org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate;/*** * 描述elasticsearch配置* author sakyoka* date 2024年10月11日 下午3:47:19*/
Configuration
public class ElasticsearchConfiguration extends AbstractElasticsearchConfiguration {Value(${spring.data.elasticsearch.rest.username})private String username;Value(${spring.data.elasticsearch.rest.password})private String password;Value(${spring.data.elasticsearch.rest.uris})private String uris;Beanpublic ElasticsearchRestTemplate elasticsearchRestTemplate(RestHighLevelClient client) {return new ElasticsearchRestTemplate(elasticsearchClient());}Overridepublic RestHighLevelClient elasticsearchClient(){//这句关闭很奏效不然会有异常System.setProperty(es.set.netty.runtime.available.processors, false);CredentialsProvider credentialsProvider new BasicCredentialsProvider();credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(username, password));RestClientBuilder builder RestClient.builder(HttpHost.create(uris)).setHttpClientConfigCallback(http - {return http.setDefaultCredentialsProvider(credentialsProvider);});return new RestHighLevelClient(builder);}
}这里es自定义类主要是继承了AbstractElasticsearchConfiguration重写elasticsearchClient对RestHighLevelClient设置账号、密码以及请求地址。本来以为重写这个就可以了的但是提示引用
ElasticsearchTemplate有问题没错es有两个ElasticsearchRestTemplate以及ElasticsearchTemplate似乎重写了elasticsearchClient之后一定要用ElasticsearchRestTemplate所以得重新定义elasticsearchRestTemplate。
好了到目前为止配置完毕使用ElasticsearchRestTemplate也正常请求es数据。但是还知道我开启了登录xpack.security.enabled: true同时开启了xpack.security.transport.ssl.enabled: true了吗这里服务器日志一直打印异常
io.netty.handler.codec.DecoderException: io.netty.handler.ssl.NotSslRecordException: not an SSL/TLS record: 45530000002c00000000000012f208004d3603000016696e7465726e616c3a7463702f68616e647368616b650004bb91f302已处理日常记录es TransportClient添加证书处理-CSDN博客
尝试设置transport的证书发现还是继续报这个异常都怀疑生成证书是不是无效的到目前为止还没解决这个异常很奇怪的是正常使用或者这个异常是es节点之间通讯用的
尝试关闭xpack.security.transport.ssl.enabled: false,但是启动失败至少需要配置证书 xpack.security.transport.ssl.key: ssl/http.key xpack.security.transport.ssl.certificate: ssl/http.crt xpack.security.transport.ssl.verification_mode: certificate 关闭之后以及配置这个证书之后服务器确实不报错了但是程序报错也不影响使用一直提示ElasticsearchSecurityException: missing authentication token for action这个异常问题也没处理想到这还是让服务器报异常算了选择开启xpack.security.transport.ssl.enabled: true
以上问题还没处理。。
最后
1、没有开启登录时候还好好的啥异常都没有
2、开启登录之后程序读取不到账号密码导致需要写配置类按道理springboot集成es有默认配置但是网上太多版本、太多配置没有一个符合的。
3、es证书生成是否有效目前成谜一直报异常(已处理日常记录es TransportClient添加证书处理-CSDN博客)
