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  • 定时获取MySQL库的大小

    定时获取MySQL库的大小

    获取数据库单个库的大小命令

    ```shell [root@admin ~]# cat db_size.txt mysql -h 192.8.1.1 -uUSER -pPASSWORD -e'use information_schema; select concat(round(((sum(DATA_LENGTH)+sum(INDEX_LENGTH))/1024/1024),2),"MB") as db_size from information_schema.tables where table_schema="db_name";' ```

    将执行结果追加写入到一个文件中

    ```python [root@admin ~]# cat db_size.py #! /usr/bin/env python import subprocess import time

    with open("db_size","r") as a:
    b=a.readline().strip()
    res = subprocess.Popen(
    b.decode("utf-8"),
    shell=True,
    stdout=subprocess.PIPE,
    stderr=subprocess.PIPE, )
    data = res.stdout.read().decode("utf-8").strip()+" "

    with open("data_size","a",) as data_a:
    data_a.write(time.strftime("%Y-%m-%d %H:%M:%S")+" ")
    data_a.write(data)

    <h3>定时执行</h3>
    ```shell
    [root@admin ~]# crontab -e
    30 0 * * * /opt/db_size.py
    
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  • 原文地址:https://www.cnblogs.com/baolin2200/p/7601570.html
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