解决nginx 503 Service Temporarily Unavailable方法示例
最近网站刷新后经常出现503ServiceTemporarilyUnavailable错误，有时有可以，联想到最近在nginx.conf里做了单ip访问次数限制，(limit_req_zone$binary_remote_addrzone=allips:20mrate=20r/s;)把这个数量放大后在刷新发现问题解决。（还顺便把这个改大了limit_reqzone=allipsburst=50nodelay; ）为了证实该问题，反复改动该数量测试发现问题确实在这。这个数量设得太小有问题，通过fiddler发现web页面刷新一下，因为页面上引用的js,css,图片都算一个连接。所以单个页面刷新下就有可能刷爆这个限制，超过这个限制就会提示503ServiceTemporarilyUnavailable。
附上nginx.conf
#usernobody;
worker_processes1;
#worker_rlimit_nofile100000;
#error_loglogs/error.log;
#error_loglogs/error.lognotice;
#error_loglogs/error.loginfo;
#pidlogs/nginx.pid;
events{
worker_connections1024;
}
http{
includemime.types;
default_typeapplication/octet-stream;
##cache##
proxy_connect_timeout5;
proxy_read_timeout60;
proxy_send_timeout5;
proxy_buffer_size16k;
proxy_buffers464k;
proxy_busy_buffers_size128k;
proxy_temp_file_write_size128k;
proxy_temp_path/home/temp_dir;
proxy_cache_path/usr/local/nginx/cachelevels=1:2keys_zone=cache_one:200minactive=1dmax_size=30g;
##end##
#limitperippersecondaccesstimes10
limit_req_zone$binary_remote_addrzone=allips:20mrate=20r/s;
#log_formatmain'$remote_addr-$remote_user[$time_local]"$request"'
#'$status$body_bytes_sent"$http_referer"'
#'"$http_user_agent""$http_x_forwarded_for"';
#access_loglogs/access.logmain;
sendfileon;
#tcp_nopushon;
#keepalive_timeout0;
keepalive_timeout65;
#gzipon;
upstreammyweb80{
ip_hash;
server192.168.3.105:80;
server192.168.3.103:80;
}
upstreammyweb8080{
ip_hash;
server192.168.3.222:10080;
#server192.168.3.103:8080;
}
upstreammyweb10086{
ip_hash;
server192.168.3.102:10086;
server192.168.3.108:10086;
}
upstreammyweb443{
ip_hash;
server192.168.3.105:443;
server192.168.3.103:443;
}
#anothervirtualhostusingmixofIP-,name-,andport-basedconfiguration
#
server{
listen80;
allow218.17.158.2;
allow127.0.0.0/24;
allow192.168.0.0/16;
allow58.251.130.1;
allow183.239.167.3;
allow61.145.164.1;
denyall;
server_namemyweb.com;
location/{
proxy_passhttp://myweb80;
proxy_set_headerX-Real-IP$remote_addr;
limit_reqzone=allipsburst=50nodelay;
}
}
server{
listen8080;
allow218.17.158.2;
allow127.0.0.0/24;
allow192.168.0.0/16;
allow58.251.130.1;
allow183.239.167.3;
allow61.145.164.1;
denyall;
location/{
proxy_passhttp://myweb8080;
proxy_set_headerX-Real-IP$remote_addr;
limit_reqzone=allipsburst=50nodelay;
}
}
#HTTPSserver
#
server{
listen10086ssl;
server_namelocalhost;
allow218.17.158.2;
allow127.0.0.0/24;
allow192.168.0.0/16;
allow58.251.130.1;
allow183.239.167.3;
allow61.145.164.1;
#denyall;
ssl_certificatessl/1_www.myweb.com_bundle.crt;
ssl_certificate_keyssl/2_www.myweb.com.key;
#ssl_session_cacheshared:SSL:1m;
#ssl_session_timeout5m;
#ssl_ciphersHIGH:!aNULL:!MD5;
#ssl_prefer_server_cipherson;
location/{
proxy_passhttps：//myweb10086;
#rofthtml;
#indexindex.htmlindex.htm;
}
}
服务器{
listen443ssl;
server_namelocalhost;
ssl_certificatessl/1_www.myweb.com_bundle.crt;
ssl_certificate_keyssl/2_www.myweb.com.key;
#ssl_session_cache共享：SSL：1m;
#ssl_session_timeout5m;
#ssl_ciphersHIGH：！aNULL：！MD5;
#ssl_prefer_server_cipherson;
location/{
proxy_passhttps：//myweb443;
#rofthtml;
#rofthtml;
#indexindex.htmlindex.htm;
}
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。
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