性能監控之中間件監控

Redis監控

一、通過info查看

通過redis-cli或者其他redis連接工具查看info，info內容可參考：https://www.cnblogs.com/daydayup-lin/p/14317535.html

 

二、redis-stat

1、下載地址： https://github.com/junegunn/redis-stat，下載zip包后上傳到服務器，解壓即可使用

2、redis監控啟動：java -jar redis-stat-0.4.14.jar --server 127.0.0.1:6379 --auth 123456（--server 如果不加端口號的話，默認端口號就是63790）

監控啟動成功如下圖：

還可以通過圖形化界面訪問： http://192.168.0.129:63790/

 

Nginx監控

一、netstat

連接數是Nginx重點監控連接數，一般是通過netstat命令來監控

監聽80端口的連接數情況：netstat -anp|grep :80

查看80端口的總連接數：netstat -anp|grep :80 | wc -l

查看nginx所有連接數的狀態，分類展示： netstat -anp | grep :80 | awk '{print $6}' | sort | uniq -c |sort -rn

 

二、ngxtop

1、安裝

系統自帶的都是python2，ngxtop需要在python環境下運行，所以需要在先安裝python3

--安裝依賴包

# 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

--下載解壓縮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

--安裝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

--創建軟鏈接

# 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、創建非root賬號，ngxtop必須在非root賬號下運行

# 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、切換到非root賬號，安裝ngxtop

# su ngxtop
$ pip3 install ngxtop

4、查看ngxtop是否安裝成功

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

5、查看監控

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