ELK的搭建

ELK 官网:

https://www.elastic.co/cn/what-is/elk-stack

前提:关闭防火墙,关闭selinux

systemctl stop firewalld

setenforce 0

 

系统优化:

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[root@node1 ~]# cat  /etc/security/limits.conf |tail -n 15
*       soft    nproc       65535
*       soft    nofile        65535
*       hard    nproc       65535
*       hard    nofile        65535

 vm.max_map_coun=655360

三个组件都安装到一台服务器上

129:ES+kibana

131:logstash

1 安装jdk

rpm -ivh jdk-8u131-linux-x64_.rpm

2 配置elasticsearch 的yum源

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[root@node1 ~]# cat /etc/yum.repos.d/elasticsearch.repo
[elasticsearch-6.x]
name=Elasticsearch repository for 6.x packages
baseurl=https://artifacts.elastic.co/packages/6.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md

 yum install elasticsearch

配置开机自启动

[root@node1 ~]# systemctl enable elasticsearch.service

开启服务

[root@node1 ~]# systemctl start elasticsearch.service

验证服务是否启动

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[root@localhost elasticsearch]# netstat  -lptnu|grep java
tcp6       0      0 127.0.0.1:9200          :::*                    LISTEN      51790/java         
tcp6       0      0 ::1:9200                :::*                    LISTEN      51790/java         
tcp6       0      0 127.0.0.1:9300          :::*                    LISTEN      51790/java         
tcp6       0      0 ::1:9300                :::*                    LISTEN      51790/java

监听端口:

9200作为Http协议,主要用于外部通讯

9300作为Tcp协议,ES集群之间是通过9300进行通讯

 

配置文件路径:

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[root@localhost elasticsearch]# ll /etc/elasticsearch/
total 36
-rw-rw----. 1 root elasticsearch   199 Nov  7 01:56 elasticsearch.keystore
-rw-rw----. 1 root elasticsearch  2869 Oct 15 23:31 elasticsearch.yml
-rw-rw----. 1 root elasticsearch  3685 Oct 15 23:31 jvm.options
-rw-rw----. 1 root elasticsearch 13085 Oct 15 23:31 log4j2.properties
-rw-rw----. 1 root elasticsearch   473 Oct 15 23:31 role_mapping.yml
-rw-rw----. 1 root elasticsearch   197 Oct 15 23:31 roles.yml
-rw-rw----. 1 root elasticsearch     0 Oct 15 23:31 users
-rw-rw----. 1 root elasticsearch     0 Oct 15 23:31 users_roles

 

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[root@huazai007 ~]# cat  /etc/elasticsearch/elasticsearch.yml |grep -v '^#'
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch
network.host: 172.18.47.110
http.port: 9200

 

日志文件路径:

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[root@localhost elasticsearch]# pwd
/var/log/elasticsearch
[root@localhost elasticsearch]# ll
total 48
-rw-r--r--. 1 elasticsearch elasticsearch     0 Nov  7 01:58 elasticsearch_access.log
-rw-r--r--. 1 elasticsearch elasticsearch     0 Nov  7 01:58 elasticsearch_audit.log
-rw-r--r--. 1 elasticsearch elasticsearch     0 Nov  7 01:58 elasticsearch_deprecation.log
-rw-r--r--. 1 elasticsearch elasticsearch     0 Nov  7 01:58 elasticsearch_index_indexing_slowlog.log
-rw-r--r--. 1 elasticsearch elasticsearch     0 Nov  7 01:58 elasticsearch_index_search_slowlog.log
-rw-r--r--. 1 elasticsearch elasticsearch  8502 Nov  7 01:58 elasticsearch.log
-rw-r--r--. 1 elasticsearch elasticsearch 35454 Nov  7 02:00 gc.log.0.current

 常用命令:

验证服务

curl -X GET http://127.0.0.1:9200

elasticsearch 查看集群统计信息

curl -XGET 'http://localhost:9200/_cluster/stats?pretty'

查看集群状态

curl -X GET 'localhost:9200/_cat/health?v'

创建索引:test_index

curl -X PUT HTTP://localhost:9200/test_index?pretty

elasticsearch 查看所有索引

curl -X GET HTTP://localhost:9200/_cat/indices?v

删除索引:test_index

curl -XDELETE 'localhost:9200/test_index?pretty'

 

3 logstash 安装

配置logstash yum 源

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[logstash-6.x]
name=Elastic repository for 6.x packages
baseurl=https://artifacts.elastic.co/packages/6.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md

 yum install logstash

 

配置文件路径:

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[root@localhost logstash]# pwd
/etc/logstash
[root@localhost logstash]# ll
total 36
drwxrwxr-x. 2 root root    6 Oct 16 00:57 conf.d
-rw-r--r--. 1 root root 1915 Oct 16 00:57 jvm.options
-rw-r--r--. 1 root root 4568 Oct 16 00:57 log4j2.properties
-rw-r--r--. 1 root root  342 Oct 16 00:57 logstash-sample.conf
-rw-r--r--. 1 root root 8236 Nov  7 02:33 logstash.yml
-rw-r--r--. 1 root root  285 Oct 16 00:57 pipelines.yml
-rw-------. 1 root root 1696 Oct 16 00:57 startup.options

 

日志文件路径:

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[root@localhost logstash]# pwd
/var/log/logstash
[root@localhost logstash]# ll
total 4
-rw-r--r--. 1 logstash logstash 1644 Nov  7 02:36 logstash-plain.log
-rw-r--r--. 1 logstash logstash    0 Nov  7 02:35 logstash-slowlog-plain.log

 

logstash是用来收集日志,并对日志做过滤处理的,我们下面要分析的是系统日志,所以要编写一个收集日志的配置文件

vim /etc/logstash/conf.d/system.conf

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input日志输入模块:日志的获取方式和路径input {
    file {
       path => "/var/log/messages"
       type => "system-log"
       start_position => "beginning"
    }
}
output日志的输出模块:导出你的数据
output {
    elasticsearch {
      hosts => "192.168.10.129:9200"
      index => "system_log-%{+YYYY.MM.dd}"
    }
}

这里为了测试,将/var/log/messages日志的权限修改为了644

chmod 777 /var/log/messages

 

如果conf.d 下有多个配置文件需要修改pipelines.yml(管道)文件

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- pipeline.id: main
  path.config: "/etc/logstash/conf.d/system.conf"
- pipeline.id: sec
  path.config: "/etc/logstash/conf.d/sec.conf"

 

配置开机自启动

 [root@localhost ~]# systemctl enable logstash.service 
启动logstash服务
[root@localhost ~]# systemctl start logstash.service

监听端口:

[root@localhost logstash]# netstat  -lptnu|grep java
tcp6       0      0 127.0.0.1:9600          :::*                    LISTEN      6722/java 

 4 安装kibana

配置yum 源

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[kibana-6.x]
name=Kibana repository for 6.x packages
baseurl=https://artifacts.elastic.co/packages/6.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md

 systemctl enable kibana.service

systemctl start kibana

 配置kibana

这里只需要配置监听地址和elasticsearch的ip就可以了

vim /etc/kibana/kibana.yml

[root@localhost yum.repos.d]# cat /etc/kibana/kibana.yml |grep -v "^#"
server.port: 5601
server.host: "0.0.0.0"
elasticsearch.hosts: ["http://192.168.153.172:9200"]

启动服务:

Systemctl start kibana

监听端口:5601

 在kibana上创建索引

 

 

 

 给系统日志添加可视化图形

 

 选择创建图形类型为线形图

 

 选择绘画哪个索引的图形

 

 选择x轴为绘画日期的柱状图,然后点击开始获取数据

posted @ 2019-12-16 09:06  相磊  阅读(247)  评论(0编辑  收藏  举报