性能监控之中间件监控

Redis监控

一、通过info查看

通过redis-cli或者其他redis连接工具查看info，info内容可参考：https://www.cnblogs.com/daydayup-lin/p/14317535.html

 

二、redis-stat

1、下载地址：https://github.com/junegunn/redis-stat，下载zip包后上传到服务器，解压即可使用

2、redis监控启动：java -jar redis-stat-0.4.14.jar --server 127.0.0.1:6379 --auth 123456（--server 如果不加端口号的话，默认端口号就是63790）

监控启动成功如下图：

还可以通过图形化界面访问：http://192.168.0.129:63790/

 

Nginx监控

一、netstat

连接数是Nginx重点监控连接数，一般是通过netstat命令来监控

监听80端口的连接数情况：netstat -anp|grep :80

查看80端口的总连接数：netstat -anp|grep :80 | wc -l

查看nginx所有连接数的状态，分类展示： netstat -anp | grep :80 | awk '{print $6}' | sort | uniq -c |sort -rn

 

二、ngxtop

1、安装

系统自带的都是python2，ngxtop需要在python环境下运行，所以需要在先安装python3

--安装依赖包

# yum -y groupinstall "Development tools"

# yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libffi-devel zlib1g-dev zlib1g-dev zlib* gcc make

--下载解压缩python

# yum -y install wget

# cd /usr/local/

# wget https://www.python.org/ftp/python/3.9.9/Python-3.9.9.tgz

# tar zxvf Python-3.9.9.tgz

--安装python3

# cd /usr/local/Python-3.9.9

# ./configure --prefix=/usr/local/python3 --with-ssl

# make clean

# make && make install

# /usr/local/python3/bin/python3.9 -m pip install --upgrade p

--创建软链接

# ln -s /usr/local/python3/bin/python3 /usr/bin/python3

# ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3

--查看pyhon3、pip3版本信息

# python3 -V

# pip3 -V

2、创建非root账号，ngxtop必须在非root账号下运行

# useradd ngxtop -G wheel
# passwd ngxtop
    Changing password for user ngxtop.
    New password: 123456
    BAD PASSWORD: The password is shorter than 8 characters
    Retype new password: 123456
    passwd: all authentication tokens updated successfully.

3、切换到非root账号，安装ngxtop

# su ngxtop
$ pip3 install ngxtop

4、查看ngxtop是否安装成功

# cd /home/ngxtop/.local/bin
$ ./ngxtop --version
$ ./ngxtop --help

5、查看监控

./ngxtop -c /etc/nginx/nginx.conf