jmeter壓測mysql Cannot create PoolableConnectionFactory (Could not create connection to database serv

在使用jmeter壓測mysql性能時報出下面的錯誤信息： Cannot create PoolableConnectionFactory (Could not create connection to database server. Attempted reconnect 3 times. Giving up.) 出現這個問題的原因在於max_connections（mysql最大連接數）設置

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