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【全球彩官网下载地址】兑现调解成效

success(code == 0)

{"code": 0,"message": {"success": 0,"failed": 4}} 

status 200;  //状态必得为200
status ! 500; //状态码不能够为500
status 200 204; //状态码为200 或 400
status ! 301 302; //状态码不能够为301或302
status 200-399; //状态码为200-399中间 都可以
status ! 400-599; //状态码不能够再 400-599里头
status 301-303 307;//状态码在301-303之内照旧307

header Content-Type = text/html; //head 包括 Conten-type而且值为 text/html
header Content-Type != text/html; //head 包蕴 Conten-Type,但值无法是 text/html
header Connection ~ close; // head富含 Connection 参数,值为能相配"close"正则的内容。
header Connection !~ close; //满含 Connection参数,无法相配"close"正则的内容
header Host; //head 包含 Host 参数
header ! X-Accel-Redirect; //head 不能有 X-Accel-Redirect

body ~ "Welcome to nginx!"; //body 中能相配含 “Welcome to nginx!"
body !~ "Welcome to nginx!"; //body 中不可能相称含 "Welcome to nginx!"
match 能够有多个布局,必得具备配置都经过检查,技艺算是健康的,示例:(注意,不是在location 这里能够将match设置为多个match name)

# status is 200, content type is "text/html",
# and body contains "Welcome to nginx!"
match welcome {
status 200;
header Content-Type = text/html;
body ~ "Welcome to nginx!";
}

# status is not one of 301, 302, 303, or 307, and header does not have "Refresh:"
match not_redirect { //同偶然候满意才足以
status ! 301-303 307;
header ! Refresh;
}

# status ok and not in maintenance mode
match server_ok { //同一时间满足本领够
status 200-399;
body !~ "maintenance mode";
}

}

Description

Nginx dynamic upstream(http & stream) use http json

upstream memcached_backend {
server 127.0.0.1:11211;
server 10.0.0.2:11211;
keepalive 32;
}

server {
...
location /memcached/ {
set $memcached_key $uri;
memcached_pass memcached_backend;
}
}

health_check [parameters];

Example:

允许对server 组举行周期性的健康检查,服务可用性检查。辅助如下可选参数:

upstream telnetsrvs {

edit(name,server,backup)

name/server must set at least onebackup noset : falseothers can modify, noset no modify 

Syntax:     ip_hash;
Default:     —
Context:     upstream

unix:/PATH/TO/SOME_SOCK_FILE

Add:

{"method": "add","params": [{ "http":{ "upsname" : "upsname", "peers":[{ "server":"10.0.2.11:9900", "weight":10, "max_conns":0, "max_fails":3, "fail_timeout":60, "backup": true , "down": false },{}]}},{ "stream":{ "upsname" : "stream_ups", "peers":[{ "server":"10.0.2.11:9900", "weight":-10, "max_conns":0, "max_fails":3, "fail_timeout":60, "backup": true , "down": false },{}]}}]} 

interval=time
安装多久举办二次检查,暗中同意是5秒。

例子

failed(code != 0)

{"code": -1009,"message": "No upstream found"} 

ELB/ALB dynamic upstreams nginx-dynamic-upstreams() Description Nginx dynamic upstream(http stream) use http json add(ser...

down
标志该(组)server长久下线,不可用。

body:期望响应报文的着珍视部分应该有些内容

nginx-dynamic-upstreams()

hash

upstream websrvs {

Del:

{"method": "del","params": [{ "http":{ "upsname" : "upsname", "peers":[{ "name":"[::1]:10001", "server":"localhost:10001", "backup": false, "down": false },{}]}},{ "stream":{ "upsname" : "stream_ups", "peers": [{ "name":"[::1]:10001", "server":"localhost:10001", "backup": false, "down": false },{}]}}]} 

connections这些值要设置的小一些,小到如何水平吗?足以让upstream server出来新传入的总是。

parameters:

List:

{"method": "lst"} 

概念健检必要合营的规范。能够参照下面的 health_check 来看。

server 192.168.22.3:23;

return Result(list)

{"code": 0,"message": [{"upsname": "http_upsname","number": 2,"total_weight": 2,"type": "http","peers": [{"name": "127.0.0.1:10001","server": "localhost:10001","current_weight": 0,"effective_weight": 1,"weight": 1,"conns": 0,"max_conns": 0,"fails": 0,"max_fails": 1,"fail_timeout": 10,"slow_start": 0,"start_time": 0,"down": false,"backup": false},{"name": "[::1]:10001","server": "localhost:10001","current_weight": 0,"effective_weight": 1,"weight": 1,"conns": 0,"max_conns": 0,"fails": 0,"max_fails": 1,"fail_timeout": 10,"slow_start": 0,"start_time": 0,"down": false,"backup": false}]},{"upsname": "stream_upsname","number": 1,"total_weight": 1,"type": "stream","peers": [{"name": "127.0.0.1:10002","server": "127.0.0.1:10002","current_weight": 0,"effective_weight": 1,"weight": 1,"conns": 0,"max_conns": 0,"fails": 0,"max_fails": 1,"fail_timeout": 10,"slow_start": 0,"start_time": 0,"down": false,"backup": false}]}]} 

Syntax:     queue number [timeout=time];
Default:     —
Context:     upstream
This directive appeared in version 1.5.12.

max_conns连接后端报务器最大产出活动连接数,1.11.5后援救

return Result(add/modify/del)

如:

源地址hash调解措施

add(server,backup,down,weight,max_conns,max_fails,fail_timeout)

server : must setbackup noset : falsedown noset : falseweight>0 else : 1max_conns>0 else : 0max_fails>0 else : 1fail_timeout>0 else : 10 

示例:

hash $remote_addr;

del(name,server,backup,down)

name/server must set at least onebackup noset : falsedown noset : false 

Syntax:     sticky cookie name [expires=time] [domain=domain] [httponly] [secure] [path=path];
sticky route $variable ...;
sticky learn create=$variable lookup=$variable zone=name:size [timeout=time];
Default:     —
Context:     upstream
This directive appeared in version 1.5.7.

server 192.168.22.2:23;

Modify:

{"method": "edit","params": [{ "http":{ "upsname" : "upsname", "peers":[{ "name":"127.0.0.1:10001", "server":"localhost:10001", "backup": true, "weight":10, "max_conns":0, "max_fails":3, "fail_timeout":60, "down": false },{}]}},{ "stream":{ "upsname" : "stream_ups", "peers":[{ "name":"127.0.0.1:10001", "server":"localhost:10001", "backup": true, "weight":-10, "max_conns":0, "max_fails":3, "fail_timeout":60, "down": false },{}]}}]} 

several IP addresses defines multiple servers at once.)

proxy_pass  address;钦赐后端服务器地址

Nginx ELB/ALB dynamic upstreams

要么对于HTTP 1.0 的长连接,可以设置Connection为“Keep-Alive”。但不推荐那样使用。

Context: http

health_check

max_fails=number败北尝试最大次数;高出此处钦赐的次数时,server将被标志为不可用,默感觉1

假使某server一时性的不可用了,需求用 down 标志出来。以保存该server的客商端IP地址,也即再复活时,仍是可以够便捷接管它一直接管的用户端IP。

upstream httpdsrvs{

upstream http_backend {
server 127.0.0.1:8080;
ntlm;
}
server {
...
location /http/ {
proxy_pass ;
proxy_http_version 1.1;
proxy_set_header Connection "";
...
}
}
http {
...
upstream exchange {
zone exchange 64k;
ntlm;
server exchange1.example.com;
server exchange2.example.com;
}
server {
listen              443 ssl;
ssl_certificate     /etc/nginx/ssl/company.com.crt;
ssl_certificate_key /etc/nginx/ssl/company.com.key;
ssl_protocols       TLSv1 TLSv1.1 TLSv1.2;
location / {
proxy_pass         ;
proxy_http_version 1.1;
proxy_set_header   Connection "";
}
}
}

fail_timeout=time后端服务器标识为不可用状态的连接超时时长,暗中认可10s

server group必需专业在分享内部存款和储蓄器格局下。

为各种worker进度保留的悠闲的长连接数量,可节约nginx端口,并压缩连接管理的损耗

fail_timeout=time
那是三个设置参数,一般跟上面包车型地铁参数协同使用。该参数的意义:
1:当连接后端server战败时,多久内可再三品味连接后端server;
2:一旦超越那么些设置时间段,则决断该server的状态为不可用(unavailable );
其一参数的暗许值为10秒

uri=uri:做正规意况检验测验的靶子uri;默以为/

upstream backend {
least_conn;
server backend1.example.com;
server backend2.example.com;
}

least_conn;

XXX.YYY.ZZZ.WWW,这里是XXX,也即XXX参与IP_HASH,后边的3端未插足。假设是IP6,则是全体IP6地址。这种办法确定保证同等顾客端能被分配到平等的server上去,那对于后端有session的情况很有用(除非该后端的服务不可用)。

http {

那也是一种负载平衡的点子,平均响应时间最短。在考虑权重的景观下,寻址平均响应时间最短的server,假使符合条件的server有多个,则基于权重来轮询。

weight=number权重,默认为1

也是在backend第三次response之后,会爆发多个route音信,route音讯平时会从cookie/UCR-VI音讯中领到。那样Nginx会根据顺序搜索$route_cookie、$route_uri参数并精选第一个非空的参数用作route,而一旦具备的参数都是空的,就动用方面暗中同意的载重均衡算法决定央浼分发给哪个backend。

1  概述

Syntax:     ntlm;
Default:     —
Context:     upstream
This directive appeared in version 1.9.2.

正规状态检测机制;只好用来location上下文

server

注意:仅对nginx plus有效

max_conns=number
界定该server的最大活动(active)连接数,暗中认可值为0,意思是无界定,假诺server组未有运营在分享内部存款和储蓄器形式下,则限制使用于每一个处理的worker(work的概念见Nginx宗旨模块的worker_processes指令)。假诺Nginx启用了idle keepalive和multiple workers以及shared memory,则 活动再而三总的数量 空闲连接只怕会胜出 max_conns 的值。(share memory和idle keepalive 参见后边的文书档案部分。)

...

ip_hash

backup将服务器标志为“备用”,即全体服务器均不可用时才启用,相当于是sorry server,提示客户,注意,这里backup不要用80端口,用任何的虚构主机来充当sorry server,如再开一个端口七千

Syntax:     least_conn;
Default:     —
Context:     upstream

match name { ... }

Nginx Plus版本还提供了部分卓殊的参数共采取,未富含着开源版本里,所以也无助使用,略过,它们是:
resolve;route;service;slow_start(那个都以upstream 上下文中server指令的参数);

hash $request_uri  consistent; #中间,consistent一致性的hash

安装文件来维持动态配置组的气象。

server {

state /var/lib/nginx/state/servers.conf; # path for Linux
state /var/db/nginx/state/servers.conf;  # path for FreeBSD

server {

resolver 10.0.0.1;
upstreamdynamic{
zone upstream_dynamic 64k;
server backend1.example.com      weight=5;
server backend2.example.com:8080 fail_timeout=5s slow_start=30s;
server 192.0.2.1                 max_fails=3;
server backend3.example.com      resolve;
server backend4.example.com      service=http resolve;
server backup1.example.com:8080  backup;
server backup2.example.com:8080  backup;
}

server {
location / {
proxy_pass ;
health_check;
}
}

效果与利益:将央求分类,同一类哀告将发往同一个upstream server,使用consistent参数,将利用ketama一致性hash算法,适用于后端是Cache服务器(如varnish)时利用

特别复杂和作用,Nginx深入分析upstream server的响应,并就学服务器常规的cookie,大概是业务上应用的。常常必要和zone搭配使用。

proxy_timeout 60s;

upstream fastcgi_backend {
server 127.0.0.1:9000;
keepalive 8;
}

server {
...
location /fastcgi/ {
fastcgi_pass fastcgi_backend;
fastcgi_keep_connon;
...
}
}

down标记为“不可用”,配合ip_hash使用,达成灰度公布,灰度公布,指分批实行揭橥上线。

upstream backend {
server backend1.example.com;
server backend2.example.com;
sticky cookie srv_id expires=1h domain=.example.com path=/;
}

.7、health_check

Syntax:     server address [parameters];
Default:     —
Context:     upstream    //其实在HTTP,stream,upstream里都有和好的server指令,全部提起server指令,首先要分通晓它的上下文(context)是怎么着。

.2proxy_timeout

示例:

server  address [parameters];

这是一种负载平衡的艺术,最少连接数。在思考server权重的地方下,负载平衡寻址找接受连接最少的server。假如符合条件的最少连接有多少个server,则基于权重来轮询。

概念后端服务器组,会引进多个新的上下文,暗中同意调治算法是wrr

location / {
proxy_pass ;
health_check uri=/some/path;
}

listen 10.1.0.6:23;

match server_ok {
    status 200-399;
    header Content-Type = text/html;
    body !~ "maintenance mode";
}
http {
    match server_ok {
        status 200-399;
        header Content-Type = text/html;
        body !~ "maintenance mode";
    }
server {
    location / {
    ......
    health_check match=server_ok;
    }
    }
}

proxy_connect_timeout  time;设置nginx与被代理的服务器尝试创建连接的逾期时间长度,默以为60s

upstream

.4、least_conn

概念一组server,每个server可监听区别的端口,并且能够混着监听TCP和Unix域 socket。

}

location / {
    proxy_pass ;
    health_check interval=10 fails=3 passes=2;
}

http {
    ...
    match server_ok {
    status 200-399;
    body !~ "maintenance mode";
    }
    server {
        ...
        location / {
            proxy_pass ;
            health_check match=server_ok;
        }
    }
}

headerHEADER[operator value]:期望存在响应首部,也可对指望的响应首部的值基于相比较操作符和值实行相比

upstream backend {
server backend1.example.com:8080;
server backend2.example.com:8081;
sticky learn
create=$upstream_cookie_examplecookie //创立二个叫 EXAMPLECEOKIE cookie。
lookup=$cookie_examplecookie    //在呼吁里寻觅 EXAMPLE老总KIE cookie。
zone=client_sessions:1m;    //session 存款和储蓄在内部存款和储蓄器共享区,所以要安顿zone,设置名称和尺寸。在陆十五人的条件下,1M zone能够储存柒仟个session.timeout = 1h;  //在timeout时间段内,zone里的session纵然没被访谈过,则会被移除,私下认可的过期时间是10分钟。
}

.3proxy_connect_timeout

upstream backend {
server backend1.example.com  max_conns=3;
server backend2.example.com;
queue
100 timeout=70;

}

upstream backend {
zone backends 64k;
queue
750 timeout=30s;
server webserver1.example.com max_conns=250;
server webserver2.example.com max_conns=150;
}

.5、hash

Syntax:     sticky_cookie_insert name [expires=time] [domain=domain] [path=path];
Default:     —
Context:     upstream

遵照源地址实行调整,同二个源的客商端调解到一样台主机

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