目录
ELK--04 使用redis优化方案
1.filebeat引入redis缓存 (redis 单节点)
filebeat收集日志传给redis，因为redis和es不能直接通信，需要中间件logstash从redis中取数据传给es，es在传给kibana展示数据
1.安装redis
[root@db01 ~]# yum install redis
[root@db01 ~]# sed -i 's#^bind 127.0.0.1#bind 127.0.0.1 10.0.0.51#' /etc/redis.conf
[root@db01 ~]# systemctl start redis
[root@db01 ~]# netstat -lntup|grep redis
[root@db01 ~]# redis-cli -h 10.0.0.51
2.停止docker容器
[root@db01 ~]# docker stop $(docker ps -q)
3.停止filebeat
[root@db01 ~]# systemctl stop filebeat
4.删除旧的ES索引
5.确认nginx日志为json格式
[root@db01 ~]# grep "access_log" nginx.conf
access_log /var/log/nginx/access.log json;
6.修改filebeat配置文件
[root@db01 ~]# cat >/etc/filebeat/filebeat.yml <<EOF
filebeat.inputs:
- type: log
enabled: true
paths:
- /var/log/nginx/access.log
json.keys_under_root: true
json.overwrite_keys: true
tags: ["access"]
- type: log
enabled: true
paths:
- /var/log/nginx/error.log
tags: ["error"]
output.redis:
hosts: ["10.0.0.51"]
keys:
- key: "nginx_access"
when.contains:
tags: "access"
- key: "nginx_error"
when.contains:
tags: "error"
setup.template.name: "nginx"
setup.template.pattern: "nginx_*"
setup.template.enabled: false
setup.template.overwrite: true
EOF
7.重启filebaet和nginx
[root@db01 ~]# systemctl restart nginx
[root@db01 ~]# systemctl restart filebeat
8.生成测试数据
[root@db01 ~]# curl 127.0.0.1/haha
9.检查
[root@db01 ~]# redis-cli -h 10.0.0.51
keys *
TYPE nginx_access
LLEN nginx_access
LRANGE nginx_access 0 -1
确认是否为json格式
10.安装logstash
[root@db01 ~]# rpm -ivh jdk-8u102-linux-x64.rpm
[root@db01 ~]# rpm -ivh logstash-6.6.0.rpm
11.配置redis将数据传给logstash的配置文件
[root@db01 ~]# cat >/etc/logstash/conf.d/redis.conf<<EOF
input {
redis {
host => "10.0.0.51"
port => "6379"
db => "0"
key => "nginx_access"
data_type => "list"
}
redis {
host => "10.0.0.51"
port => "6379"
db => "0"
key => "nginx_error"
data_type => "list"
}
}
filter {
mutate {
convert => ["upstream_time", "float"]
convert => ["request_time", "float"]
}
}
output {
stdout {}
if "access" in [tags] {
elasticsearch {
hosts => "http://10.0.0.51:9200"
manage_template => false
index => "nginx_access-%{+yyyy.MM}"
}
}
if "error" in [tags] {
elasticsearch {
hosts => "http://10.0.0.51:9200"
manage_template => false
index => "nginx_error-%{+yyyy.MM}"
}
}
}
EOF
12.前台启动测试
[root@db01 ~]# /usr/share/logstash/bin/logstash -f /etc/logstash/conf.d/redis.conf
13.检查
logstash输出的内容有没有解析成json
es-head上有没有索引生成
redis里的列表数据有没有在减少
14.将logstash放在后台运行
ctrl+c
[root@db01 ~]# systemctl start logstash
听风扇声音，开始转的时候表示logstash启动了
15.后台启动后生成数据并在es-head中查看
2.filebeat引入redis完善方案 （使用两台服务器完成redis高可用）
因为filebeat只支持把数据传到redis单节点上面（filebeat不支持传输给redis哨兵或集群，logstash也不支持从redis哨兵或集群里读取数据），所以在filebeat和redis之前配置nginx代理服务，引用keepalives高可用来完成转换，即在redis前面使用nginx做keepalived，假如节点1挂掉了，节点2还能接收filebeat数据传给redis，logstash也连接keepalived，
1.前提条件
- filebeat不支持传输给redis哨兵或集群
- logstash也不支持从redis哨兵或集群里读取数据
2.安装配置redis（db01、db02安装）
[root@db01 ~]# yum install redis -y
[root@db02 ~]# yum install redis -y
[root@db01 ~]# sed -i 's#^bind 127.0.0.1#bind 127.0.0.1 10.0.0.51#' /etc/redis.conf
[root@db02 ~]# sed -i 's#^bind 127.0.0.1#bind 127.0.0.1 10.0.0.52#' /etc/redis.conf
[root@db01 ~]# systemctl start redis
[root@db02 ~]# systemctl start redis
3.安装配置nginx
配置官方源
[root@db01 ~]# yum install nginx -y
[root@db02 ~]# yum install nginx -y
放在nginx.conf最后一行的}后面，不要放在conf.d里面
stream {
upstream redis {
server 10.0.0.51:6379 max_fails=2 fail_timeout=10s;
server 10.0.0.52:6379 max_fails=2 fail_timeout=10s backup;
}
server {
listen 6380;
proxy_connect_timeout 1s;
proxy_timeout 3s;
proxy_pass redis;
}
}
#检查并启动nginx
[root@db01 ~]# nginx -t
[root@db02 ~]# nginx -t
[root@db01 ~]# systemctl start nginx
[root@db02 ~]# systemctl start nginx
4.安装配置keepalived
[root@db01 ~]# yum install keepalived -y
[root@db02 ~]# yum install keepalived -y
#db01的配置 =======（# 虚拟ip 10.0.100）
[root@db01 ~]# cat /etc/keepalived/keepalived.conf
global_defs {
router_id db01
}
vrrp_instance VI_1 {
state MASTER
interface eth0
virtual_router_id 50
priority 150
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.0.0.100
}
}
#db02的配置 =======（# 虚拟ip 10.0.100）
[root@db02 ~]# cat /etc/keepalived/keepalived.conf
global_defs {
router_id db02
}
vrrp_instance VI_1 {
state BACKUP
interface eth0
virtual_router_id 50
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.0.0.100
}
}
[root@db01 ~]# systemctl start keepalived
[root@db02 ~]# systemctl start keepalived
[root@db01 ~]# ip addr |grep 10.0.0.100
5.测试访问能否代理到redis
[root@db01 ~]# redis-cli -h 10.0.0.100 -p 6380
#把db01的redis停掉，测试还能不能连接redis
6.配置filebeat #（只在一台器机器上执行即可）
[root@db01 ~]# cat >/etc/filebeat/filebeat.yml <<EOF
filebeat.inputs:
- type: log
enabled: true
paths:
- /var/log/nginx/access.log
json.keys_under_root: true
json.overwrite_keys: true
tags: ["access"]
- type: log
enabled: true
paths:
- /var/log/nginx/error.log
tags: ["error"]
output.redis:
hosts: ["10.0.0.100:6380"] #注意此处ip为虚拟ip：10.0.0.100
keys:
- key: "nginx_access"
when.contains:
tags: "access"
- key: "nginx_error"
when.contains:
tags: "error"
setup.template.name: "nginx"
setup.template.pattern: "nginx_*"
setup.template.enabled: false
setup.template.overwrite: true
EOF
7.测试访问filebeat能否传输到redis
[root@db01 ~]# curl 127.0.0.1/haha
[root@db01 ~]# redis-cli -h 10.0.0.51 #应该有数据
[root@db02 ~]# redis-cli -h 10.0.0.52 #应该没数据
[root@db01 ~]# redis-cli -h 10.0.0.100 -p 6380 #应该有数据
8.配置logstash
[root@db01 ~]# cat >/etc/logstash/conf.d/redis.conf<<EOF
input {
redis {
host => "10.0.0.100" #注意此处ip为虚拟ip：10.0.0.100
port => "6380"
db => "0"
key => "nginx_access"
data_type => "list"
}
redis {
host => "10.0.0.100" #注意此处ip为虚拟ip：10.0.0.100
port => "6380"
db => "0"
key => "nginx_error"
data_type => "list"
}
}
filter {
mutate {
convert => ["upstream_time", "float"]
convert => ["request_time", "float"]
}
}
output {
stdout {}
if "access" in [tags] {
elasticsearch {
hosts => "http://10.0.0.51:9200"
manage_template => false
index => "nginx_access-%{+yyyy.MM}"
}
}
if "error" in [tags] {
elasticsearch {
hosts => "http://10.0.0.51:9200"
manage_template => false
index => "nginx_error-%{+yyyy.MM}"
}
}
}
EOF
9.启动测试
/usr/share/logstash/bin/logstash -f /etc/logstash/conf.d/redis.conf
#测试完毕后台启动
systemctl start logstash
10.最终测试
ab -n 10000 -c 100 10.0.0.100/
检查es-head上索引条目是否为10000条
关闭db01的redis，在访问，测试logstash正不正常
恢复db01的redis，再测试
11.登录es-head查看日志数据
3.filbeat引入redis优化方案
1.新增加一个日志路径需要修改4个地方：
- filebat 2个位置
- logstash 2个位置
2.优化之后需要修改的地方2个地方
- filebat 1个位置
- logstash 1个位置
3.filebeat配置文件
cat /etc/filebeat/filebeat.yml
filebeat.inputs:
- type: log
enabled: true
paths:
- /var/log/nginx/access.log
json.keys_under_root: true
json.overwrite_keys: true
tags: ["access"]
- type: log
enabled: true
paths:
- /var/log/nginx/error.log
tags: ["error"]
output.redis:
hosts: ["10.0.0.100:6380"]
key: "nginx_log"
setup.template.name: "nginx"
setup.template.pattern: "nginx_*"
setup.template.enabled: false
setup.template.overwrite: true
4.优化后的logstash
cat /etc/logstash/conf.d/redis.conf
input {
redis {
host => "10.0.0.100"
port => "6380"
db => "0"
key => "nginx_log"
data_type => "list"
}
}
filter {
mutate {
convert => ["upstream_time", "float"]
convert => ["request_time", "float"]
}
}
output {
stdout {}
if "access" in [tags] {
elasticsearch {
hosts => "http://10.0.0.51:9200"
manage_template => false
index => "nginx_access-%{+yyyy.MM}"
}
}
if "error" in [tags] {
elasticsearch {
hosts => "http://10.0.0.51:9200"
manage_template => false
index => "nginx_error-%{+yyyy.MM}"
}
}
}
来源：https://www.cnblogs.com/gongjingyun123--/p/12490963.html