nginx性能優(yōu)化帶寬小多個業(yè)務(wù)域名共享同一網(wǎng)絡(luò)上行鏈路

123 IRQBackendServer 使用in（支持網(wǎng)net.ipv4.tcp_max_tw_buckets=net.ipv4.tcp_sack=net.ipv4.tcp_window_scaling=net.ipv4.tcp_rmem=net.ipv4.tcp_wmem=4096net.core.wmem_default=net.core.rmem_default=net.core.rmem_max=net.core.wmem_max=net.ipv4.tcp_orphan_retries1(TCP_FIN_WAIT1、TCP_FIN_WAIT2、TCP_LAST_ACK、net.core.somaxconn=net.ipv4.tcp_max_orphans=net.ipv4.tcp_max_syn_backlog=net.ipv4.tcp_timestamps=net.ipv4.tcp_synack_retries=net.ipv4.tcp_syn_retries=net.ipv4.tcp_retries2=net.ipv4.tcp_tw_recycle=net.ipv4.tcp_tw_reuse=net.ipv4.ip_local_port_range=10000net.ipv4.tcp_slow_start_after_idle=接超過這個設(shè)置的時候在/var/log/messages中打印警告信息，同時釋放TW連接，可以設(shè)置小一點，當系統(tǒng)中TW太多的時候，net.ipv4.tcp_tw_recycle和net.ipv4.tcp_tw_reuse兩個參數(shù)并沒有卵用，所以TW連接過大的可以直接269651packetsprunedfromreceivequeuebecauseofsocketbufferpacketscollapsedinreceivequeueduetolowsocket./configure--prefix=/opt/websuite/nginx--conf-path=/opt/config/nginx/nginx.conf\pid-path=/opt/run/nginx--user=websuite\--with-httpsslmodule--with-httpv2modulemap$uri$expanded_name~^(.*\.(gif|jpg|jpeg|png|bmp|swf|js|css)$)default} buffer=1m 作為的日志記錄格式，并且設(shè)置buffer為1m，當buffer中的日志超過1m時再寫入日志文件，同時

4invalid_headerhttp_500http_503http_403http_502 _next_upstream_tries其中_buffer_size的值可通過統(tǒng)計一天的平均值即為_buffer_size的值，$bytes_sent的最大值則為_buffers的大小。例如，平均值為50K，最大值為

4errortimeoutinvalid_headerhttp_500 $bytes_sent worker_processesworker_cpu_affinityauto;worker_rlimit_nofile100000;pcre_jiton;useepoll;worker_connections8192;accept_mutexoff;}一般worker_connections*worker_processes<worker_rlimit_nofile,其中 Nginx建議配置一個defaultserverts都Nginx負載均衡環(huán)境中，在upstream啟用keepalive指令，可用 和fastcgi的場景upstreamnetemuserverunix:/opt/run/php/pool1.sock;serverunix:/opt/run/php/pool4.sock;keepali