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	<title>TIME_WAIT过多 &#8211; moneyslow.com</title>
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		<title>CentOS7 解决TIME_WAIT过多的内核参数调整</title>
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					<description><![CDATA[默认情况下，我们会消除对操作系统施加的各种限制，以充分发挥硬件的性能。 主要的方法就是打开文件数的上限，启动进程数的上限，TCP/IP端口数的上限，促进TCP连接的重用，针对TCP欺诈的一些对策，以及通过禁用IPv6来提高资源效率等。 以下是具体方法，但是修改正式业务以前请务必进行彻底测试！！！ 一、更改操作系统文件的最大数量和用户启动进程的最大数量 打开/etc/systemd/system.conf并更改以下内容 DefaultLimitNOFILE = 1048576 DefaultLimitNPROC = 1048576 二、打开/etc/sysctl.conf并更改以下内容 #kernel.threads-max = 29990 kernel.threads-max = 1060863 #fs.file-max = 379862 fs.file-max = 5242880 #net.ipv4.ip_local_port_range = 32768 60999 net.ipv4.ip_local_port_range = 1024 65535 #net.core.somaxconn = 128 net.core.somaxconn = 65535 #net.ipv4.tcp_max_syn_backlog = 128 net.ipv4.tcp_max_syn_backlog = 65535 #net.core.netdev_max_backlog = 1000 net.core.netdev_max_backlog = 16384 #net.ipv4.tcp_tw_reuse = 0 net.ipv4.tcp_tw_reuse = [&#8230;]]]></description>
		
		
		
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