MySQL数据库压力分析是指对MySQL数据库在运行过程中所承受的各种负载进行评估和分析的过程。这包括对CPU使用率、内存使用率、磁盘I/O、网络带宽、并发连接数、查询响应时间等关键指标的监控和分析。
以下是一个简单的Python脚本,用于监控MySQL数据库的实时性能数据:
import mysql.connector
import time
def monitor_mysql(host, user, password, database):
conn = mysql.connector.connect(host=host, user=user, password=password, database=database)
cursor = conn.cursor()
while True:
cursor.execute("SHOW GLOBAL STATUS LIKE 'Threads_connected'")
threads_connected = cursor.fetchone()[1]
cursor.execute("SHOW GLOBAL STATUS LIKE 'Uptime'")
uptime = cursor.fetchone()[1]
threads_per_sec = threads_connected / (uptime / 10)
print(f"Threads Connected: {threads_connected}")
print(f"Threads per Second: {threads_per_sec:.2f}")
time.sleep(5)
if __name__ == "__main__":
monitor_mysql("localhost", "root", "password", "testdb")
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