• ELK5.X+logback搭建日志平台


    一、背景

      当生产环境web服务器做了负载集群后,查询每个tomcat下的日志无疑是一件麻烦的事,elk为我们提供了快速查看日志的方法。

    二、环境

      CentOS7、JDK8、这里使用了ELK5.0.0(即:Elasticsearch-5.0.0、Logstash-5.0.0、kibana-5.0.0),安装ElasticSearch6.2.0也是一样的步骤,已亲测。

    三、注意

      1. 安装ELK一定要JDK8或者以上版本。

      2. 关闭防火墙:systemctl stop firewalld.service

      3. 启动elasticsearch,一定不能用root用户,需要重新创建一个用户,因为elasticsearch会验证安全。

      4.官网历史版本下载:https://www.elastic.co/downloads/past-releases

    四、Elasticsearch安装

    1. 用root登录centos,创建elk组,并且将elk用户添加到elk组中,然后创建elk用户的密码

      [root@iZuf6a50pk1lwxxkn0qr6tZ ~]# groupadd elk
      [root@iZuf6a50pk1lwxxkn0qr6tZ ~]# useradd -g elk elk
      [root@iZuf6a50pk1lwxxkn0qr6tZ ~]# passwd elk
      更改用户 elk 的密码 。
      新的 密码:
      重新输入新的 密码:
      passwd:所有的身份验证令牌已经成功更新。

    2.进入/usr/local目录,创建elk目录,并将该目录的使用权赋给elk用户。下载elasticsearch,可以从官网下载,也可以直接使用wget下载,这里使用wget下载

      cd /usr/local
      mkdir elk
       chown -R elk:elk /usr/local/elk   # 授权
      cd elk 
      wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.0.0.tar.gz
        解压elasticsearch:tar -zxvf elasticsearch-5.0.0.tar.gz

    3.使用root用户,进入/usr/local/elk/elasticsearch-5.0.0/config目录,编辑 elasticsearch.yml ,修改以下参数:

      cluster.name: nmtx-cluster                     # 在集群中的名字
      node.name: node-1                              # 节点的名字
      path.data: /data/elk/elasticsearch-data        # es数据保存的目录
      path.logs: /data/elk/elasticsearch-logs        # es日志保存的目录
      network.host: 0.0.0.0
      http.port: 9200                                # 开放的端口

      将data/elk目录的使用权限 赋予 elk用户:

      chown -R elk:elk /data/elk

    4.使用root用户,修改/etc/sysctl.conf 配置文件,在最后一行添加:vm.max_map_count=262144, 然后使其生效:sysctl -p /etc/sysctl.conf。如果不配置这一个的话,启动es会报如下错误:

       max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

    5.使用root用户,修改/etc/security/limits.conf文件,添加或修改如下行:

      * soft nproc 65536
      * hard nproc 65536
      * soft nofile 65536
      * hard nofile 65536

       如果不配置,会报如下错误:

      max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]

    6.切换到elk用户,启动es(直接后台启动了,加上 -d 即为后台启动,配置完4、5步骤基本不会出什么问题了),

       /usr/local/elk/elasticsearch-5.0.0/bin/elasticsearch -d

    7.验证是否启动成功,输入以下命令:

       curl -XGET 'localhost:9200/?pretty'

         当看到如下时,即为启动成功:

     {
       "name" : "node-1",
       "cluster_name" : "nmtx-cluster",
       "cluster_uuid" : "WdX1nqBPQJCPQniObzbUiQ",
       "version" : {
         "number" : "5.0.0",
         "build_hash" : "253032b",
         "build_date" : "2016-10-26T04:37:51.531Z",
         "build_snapshot" : false,
         "lucene_version" : "6.2.0"
       },
       "tagline" : "You Know, for Search"
     }

      或者使用浏览器访问:192.168.1.66:9200 

      

    但是6版本集成了x-pack插件,可能会出现如下:

    [elk@localhost bin]$ curl -XGET 'localhost:9200/?pretty'
    {
      "error" : {
        "root_cause" : [
          {
            "type" : "security_exception",
            "reason" : "missing authentication token for REST request [/?pretty]",
            "header" : {
              "WWW-Authenticate" : "Basic realm="security" charset="UTF-8""
            }
          }
        ],
        "type" : "security_exception",
        "reason" : "missing authentication token for REST request [/?pretty]",
        "header" : {
          "WWW-Authenticate" : "Basic realm="security" charset="UTF-8""
        }
      },
      "status" : 401
    }

    需要加上用户名密码,如下:

    [elk@localhost bin]$ curl --user elastic:changeme -XGET 'localhost:9200/_cat/health?v&pretty'
    epoch      timestamp cluster        status node.total node.data shards pri relo init unassign pending_tasks max_task_wait_time active_shards_percent
    1556865276 06:34:36  my-application green           1         1      1   1    0    0        0             0                  -                100.0%

    五、Logstash安装

    1.下载logstash5.0.0,也是使用 wget下载,解压logstash

      cd /usr/local/elk
      wget https://artifacts.elastic.co/downloads/logstash/logstash-5.0.0.tar.gz
      tar -zxvf logstash-5.0.0.tar.gz

    2.编辑 usr/local/elk/logstash-5.0.0/config/logstash.conf 文件,这是一个新创建的文件,在文件中添加如下内容:

       input {
          tcp {
                port => 4567
                mode => "server"
                codec => json_lines
           }
        }
    
        filter {
        }
    
      output {
        elasticsearch { 
          hosts => ["192.168.1.66:9200"] 
          cluster => nmtx-cluster
          index => "operation-%{+YYYY.MM.dd}"
        }  
        stdout {
              codec => rubydebug
         }
      }

      logstash的配置文件须包含三个内容:

    • input{}:此模块是负责收集日志,可以从文件读取、从redis读取 或者 开启端口让产生日志的业务系统直接写入到logstash,这里使用的是:开启端口让产生日志的业务系统直接写入到logstash
    • filter{}:此模块是负责过滤收集到的日志,并根据过滤后对日志定义显示字段
    • output{}:此模块是负责将过滤后的日志输出到elasticsearch或者文件、redis等,生产环境中可以将 stdout 移除掉,防止在控制台上打印日志。

    3.启动logstash,先不以后台方式启动,为了看logstash是否可以启动成功

       /usr/local/elk/logstash-5.0.0/bin/logstash -f /usr/local/elk/logstash-5.0.0/config/logstash.conf 

      当看到控制台上出现如下内容时,即为启动成功:

     Sending Logstash logs to /elk/logstash-5.0.0/logs which is now configured via log4j2.properties.
     [2018-03-11T12:12:14,588][INFO ][logstash.inputs.tcp      ] Starting tcp input listener {:address=>"0.0.0.0:4567"}
     [2018-03-11T12:12:14,892][INFO ][logstash.outputs.elasticsearch] Elasticsearch pool URLs updated {:changes=>{:removed=>[], :added=>["http://localhost:9200"]}}
     [2018-03-11T12:12:14,894][INFO ][logstash.outputs.elasticsearch] Using mapping template from {:path=>nil}
     [2018-03-11T12:12:15,425][INFO ][logstash.outputs.elasticsearch] Attempting to install template {:manage_template=>{"template"=>"logstash-*", "version"=>50001, "settings"=>{"index.refresh_interval"=>"5s"}, "mappings"=>{"_default_"=>{"_all"=>{"enabled"=>true, "norms"=>false}, "dynamic_templates"=>[{"message_field"=>{"path_match"=>"message", "match_mapping_type"=>"string", "mapping"=>{"type"=>"text", "norms"=>false}}}, {"string_fields"=>{"match"=>"*", "match_mapping_type"=>"string", "mapping"=>{"type"=>"text", "norms"=>false, "fields"=>{"keyword"=>{"type"=>"keyword"}}}}}], "properties"=>{"@timestamp"=>{"type"=>"date", "include_in_all"=>false}, "@version"=>{"type"=>"keyword", "include_in_all"=>false}, "geoip"=>{"dynamic"=>true, "properties"=>{"ip"=>{"type"=>"ip"}, "location"=>{"type"=>"geo_point"}, "latitude"=>{"type"=>"half_float"}, "longitude"=>{"type"=>"half_float"}}}}}}}}
     [2018-03-11T12:12:15,445][INFO ][logstash.outputs.elasticsearch] Installing elasticsearch template to _template/logstash
     [2018-03-11T12:12:15,729][INFO ][logstash.outputs.elasticsearch] New Elasticsearch output {:class=>"LogStash::Outputs::ElasticSearch", :hosts=>["localhost:9200"]}
     [2018-03-11T12:12:15,732][INFO ][logstash.pipeline        ] Starting pipeline {"id"=>"main", "pipeline.workers"=>4, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>5, "pipeline.max_inflight"=>500}
     [2018-03-11T12:12:15,735][INFO ][logstash.pipeline        ] Pipeline main started
     [2018-03-11T12:12:15,768][INFO ][logstash.agent           ] Successfully started Logstash API endpoint {:port=>9600}

       Ctrl+C,关闭logstash,然后 后台启动:

      nohup /usr/local/elk/logstash-5.0.0/bin/logstash -f /usr/local/elk/logstash-5.0.0/config/logstash.conf > /data/elk/logstash-log.file 2>&1 &

     六、Kibana安装

    1.下载并解压Kibana,wget下载:

      cd /usr/local/elk
      wget https://artifacts.elastic.co/downloads/kibana/kibana-5.0.0-linux-x86_64.tar.gz
      tar zxvf kibana-5.0.0-linux-x86_64.tar.gz

    2.修改/usr/local/elk/kibana-5.0.0-linux-x86_64/config/kibana.yml文件,修改内容如下:

      server.port: 5601
      server.host: "192.168.1.66"
      elasticsearch.url: "http://192.168.1.66:9200"
      kibana.index: ".kibana"

    3.启动Kibana,后台启动:

      nohup /elk/kibana-5.0.0-linux-x86_64/bin/kibana > /data/elk/kibana-log.file 2>&1 &

    4.浏览器访问:x.x.x.x:5601,然后配置索引匹配,如下:

      

    七、使用logback向logstash中写入日志

    1.新建一个SpringBoot工程,引入 logstash需要的jar包依赖:

        <!-- logstash -->
        <dependency>
            <groupId>net.logstash.logback</groupId>
            <artifactId>logstash-logback-encoder</artifactId>
            <version>4.11</version>
        </dependency>

    2.添加 logback.xml 文件,内容如下:

    <!-- Logback configuration. See http://logback.qos.ch/manual/index.html -->
    <configuration scan="true" scanPeriod="10 seconds">
        <include resource="org/springframework/boot/logging/logback/base.xml" />
    
        <appender name="INFO_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <File>${LOG_PATH}/info.log</File>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${LOG_PATH}/info-%d{yyyyMMdd}.log.%i</fileNamePattern>
                <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>500MB</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
                <maxHistory>2</maxHistory>
            </rollingPolicy>
            <layout class="ch.qos.logback.classic.PatternLayout">
                <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} -%msg%n
                </Pattern>
            </layout>
        </appender>
    
        <appender name="ERROR_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
                <level>ERROR</level>
            </filter>
            <File>${LOG_PATH}/error.log</File>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${LOG_PATH}/error-%d{yyyyMMdd}.log.%i
                </fileNamePattern>
                <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>500MB</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
                <maxHistory>2</maxHistory>
            </rollingPolicy>
            <layout class="ch.qos.logback.classic.PatternLayout">
                <Pattern>
                    %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} -%msg%n
                </Pattern>
            </layout>
        </appender>
        
        <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">  
            <encoder>  
                <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>  
            </encoder>  
        </appender>  
       
        <!--  配置logstash的ip端口 -->
        <appender name="LOGSTASH" class="net.logstash.logback.appender.LogstashTcpSocketAppender">  
             <destination>192.168.1.66:4567</destination>
             <encoder charset="UTF-8" class="net.logstash.logback.encoder.LogstashEncoder" />
        </appender>  
    
        <root level="INFO">
            <appender-ref ref="INFO_FILE" />
            <appender-ref ref="ERROR_FILE" />
            <appender-ref ref="STDOUT" />
           <!-- 向logstash中写入日志 -->
            <appender-ref ref="LOGSTASH" />
        </root>
        
        <logger name="org.springframework.boot" level="INFO"/>
    </configuration>

    3.application.properties文件中配置使用 我们刚刚加入的logback.xml文件

      #日志
      logging.config=classpath:logback.xml
      logging.path=/data/springboot-log

    4.新建一个测试类,如下:

    import org.junit.Test;
        import org.junit.runner.RunWith;
        import org.slf4j.Logger;
        import org.slf4j.LoggerFactory;
        import org.springframework.boot.test.context.SpringBootTest;
        import org.springframework.test.context.junit4.SpringRunner;
    
        @RunWith(SpringRunner.class)
        @SpringBootTest
        public class LogTest {
    
          public static final Logger logger = LoggerFactory.getLogger(Main.class);
            
            @Test
            public void testLog() {
                logger.info("==66666=={}" , "我是info级别的日志");
                logger.error("==66666=={}" , "我是error级别的日志");
            }
            
        }

       在浏览器中输入:192.168.1.66:5601,选中 左侧菜单中的Discover,然后在 下图框中输入'66666'(注意:单引号代表模糊查询,双引号代表精确查询),回车,看到下图中可以查询出刚刚LogTest中输入的日志,说明logback已经可以向logstash中写入日志了。

      

  • 相关阅读:
    VS2012 打包部署程序
    请求筛选模块被配置为拒绝包含 hiddenSegment 节的 URL 中的路径
    “远程服务器返回错误: (404) 未找到”的正确解决方法
    23.IDEA 运行junit单元测试方法
    Java单元测试之JUnit篇
    22.IntelliJ IDEA 切换 project
    21. 【intellij idea】Project Structure 讲解
    一个多maven项目聚合的实例
    解决Maven项目相互依赖/循环依赖/双向依赖的问题
    20. idea刷新项目、清除项目缓存
  • 原文地址:https://www.cnblogs.com/xbq8080/p/6424954.html
Copyright © 2020-2023  润新知