Nginx實現負載均衡

原創 IT乾坤 2020-02-22 23:48

在看這個知識點之前，先學會nginx的反向代理

先看nginx的反向代理，就看這個鏈接：https://blog.csdn.net/weixin_43689480/article/details/95860813

nginx實現負載均衡的過程

想要的結果就是：給 www.sina.com 添加多個tomcat服務器

首先安裝兩個tomcat服務器，都放到nginx服務器裏面，兩個端口分別是8081和8082

首先是下載tomcat，使用下面的命令

wget http://mirror.bit.edu.cn/apache/tomcat/tomcat-7/v7.0.94/bin/apache-tomcat-7.0.94.tar.gz

在這裏插入圖片描述
然後是加載這個壓縮包

tar -xvf apache-tomcat-7.0.94.tar.gz

在這裏插入圖片描述
然後把apache-tomcat-7.0.94複製成兩份，一份是tomcat8081，一份是tomcat8082，過程如下

cp -r apache-tomcat-7.0.94 tomcat8081
cp -r apache-tomcat-7.0.94 tomcat8082

在這裏插入圖片描述
然後通過Editplus遠程連接修改tomcat8081裏面的server.xml配置裏面修改端口號(怎麼通過EditPlus連接linux，看着篇文章：https://blog.csdn.net/weixin_43689480/article/details/95867289)，注意下面要修改三個端口號

<Server port="8006" shutdown="SHUTDOWN">
<Connector port="8081" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
<Connector port="8010" protocol="AJP/1.3" redirectPort="8443" />

<?xml version='1.0' encoding='utf-8'?>
<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->
<!-- Note:  A "Server" is not itself a "Container", so you may not
     define subcomponents such as "Valves" at this level.
     Documentation at /docs/config/server.html
 -->
<Server port="8006" shutdown="SHUTDOWN">
  <Listener className="org.apache.catalina.startup.VersionLoggerListener" />
  <!-- Security listener. Documentation at /docs/config/listeners.html
  <Listener className="org.apache.catalina.security.SecurityListener" />
  -->
  <!--APR library loader. Documentation at /docs/apr.html -->
  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
  <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -->
  <Listener className="org.apache.catalina.core.JasperListener" />
  <!-- Prevent memory leaks due to use of particular java/javax APIs-->
  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />

  <!-- Global JNDI resources
       Documentation at /docs/jndi-resources-howto.html
  -->
  <GlobalNamingResources>
    <!-- Editable user database that can also be used by
         UserDatabaseRealm to authenticate users
    -->
    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
              description="User database that can be updated and saved"
              factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
              pathname="conf/tomcat-users.xml" />
  </GlobalNamingResources>

  <!-- A "Service" is a collection of one or more "Connectors" that share
       a single "Container" Note:  A "Service" is not itself a "Container",
       so you may not define subcomponents such as "Valves" at this level.
       Documentation at /docs/config/service.html
   -->
  <Service name="Catalina">

    <!--The connectors can use a shared executor, you can define one or more named thread pools-->
    <!--
    <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
        maxThreads="150" minSpareThreads="4"/>
    -->


    <!-- A "Connector" represents an endpoint by which requests are received
         and responses are returned. Documentation at :
         Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
         Java AJP  Connector: /docs/config/ajp.html
         APR (HTTP/AJP) Connector: /docs/apr.html
         Define a non-SSL HTTP/1.1 Connector on port 8080
    -->
    <Connector port="8081" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    <!-- A "Connector" using the shared thread pool-->
    <!--
    <Connector executor="tomcatThreadPool"
               port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    -->
    <!-- Define a SSL HTTP/1.1 Connector on port 8443
         This connector uses the BIO implementation that requires the JSSE
         style configuration. When using the APR/native implementation, the
         OpenSSL style configuration is required as described in the APR/native
         documentation -->
    <!--
    <Connector port="8443" protocol="org.apache.coyote.http11.Http11Protocol"
               maxThreads="150" SSLEnabled="true" scheme="https" secure="true"
               clientAuth="false" sslProtocol="TLS" />
    -->

    <!-- Define an AJP 1.3 Connector on port 8009 -->
    <Connector port="8010" protocol="AJP/1.3" redirectPort="8443" />


    <!-- An Engine represents the entry point (within Catalina) that processes
         every request.  The Engine implementation for Tomcat stand alone
         analyzes the HTTP headers included with the request, and passes them
         on to the appropriate Host (virtual host).
         Documentation at /docs/config/engine.html -->

    <!-- You should set jvmRoute to support load-balancing via AJP ie :
    <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
    -->
    <Engine name="Catalina" defaultHost="localhost">

      <!--For clustering, please take a look at documentation at:
          /docs/cluster-howto.html  (simple how to)
          /docs/config/cluster.html (reference documentation) -->
      <!--
      <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
      -->

      <!-- Use the LockOutRealm to prevent attempts to guess user passwords
           via a brute-force attack -->
      <Realm className="org.apache.catalina.realm.LockOutRealm">
        <!-- This Realm uses the UserDatabase configured in the global JNDI
             resources under the key "UserDatabase".  Any edits
             that are performed against this UserDatabase are immediately
             available for use by the Realm.  -->
        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
               resourceName="UserDatabase"/>
      </Realm>

      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">

        <!-- SingleSignOn valve, share authentication between web applications
             Documentation at: /docs/config/valve.html -->
        <!--
        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
        -->

        <!-- Access log processes all example.
             Documentation at: /docs/config/valve.html
             Note: The pattern used is equivalent to using pattern="common" -->
        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log." suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" />

      </Host>
    </Engine>
  </Service>
</Server>

然後通過Editplus遠程連接修改tomcat8082裏面的server.xml配置裏面修改端口號(怎麼通過EditPlus連接linux，看着篇文章：https://blog.csdn.net/weixin_43689480/article/details/95867289)，注意下面要修改三個端口號

<Server port="8007" shutdown="SHUTDOWN">
<Connector port="8082" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
<Connector port="8011" protocol="AJP/1.3" redirectPort="8443" />

<?xml version='1.0' encoding='utf-8'?>
<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->
<!-- Note:  A "Server" is not itself a "Container", so you may not
     define subcomponents such as "Valves" at this level.
     Documentation at /docs/config/server.html
 -->
<Server port="8007" shutdown="SHUTDOWN">
  <!-- Security listener. Documentation at /docs/config/listeners.html
  <Listener className="org.apache.catalina.security.SecurityListener" />
  -->
  <!--APR library loader. Documentation at /docs/apr.html -->
  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
  <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -->
  <Listener className="org.apache.catalina.core.JasperListener" />
  <!-- Prevent memory leaks due to use of particular java/javax APIs-->
  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />

  <!-- Global JNDI resources
       Documentation at /docs/jndi-resources-howto.html
  -->
  <GlobalNamingResources>
    <!-- Editable user database that can also be used by
         UserDatabaseRealm to authenticate users
    -->
    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
              description="User database that can be updated and saved"
              factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
              pathname="conf/tomcat-users.xml" />
  </GlobalNamingResources>

  <!-- A "Service" is a collection of one or more "Connectors" that share
       a single "Container" Note:  A "Service" is not itself a "Container",
       so you may not define subcomponents such as "Valves" at this level.
       Documentation at /docs/config/service.html
   -->
  <Service name="Catalina">

    <!--The connectors can use a shared executor, you can define one or more named thread pools-->
    <!--
    <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
        maxThreads="150" minSpareThreads="4"/>
    -->


    <!-- A "Connector" represents an endpoint by which requests are received
         and responses are returned. Documentation at :
         Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
         Java AJP  Connector: /docs/config/ajp.html
         APR (HTTP/AJP) Connector: /docs/apr.html
         Define a non-SSL HTTP/1.1 Connector on port 8080
    -->
    <Connector port="8082" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    <!-- A "Connector" using the shared thread pool-->
    <!--
    <Connector executor="tomcatThreadPool"
               port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    -->
    <!-- Define a SSL HTTP/1.1 Connector on port 8443
         This connector uses the JSSE configuration, when using APR, the
         connector should be using the OpenSSL style configuration
         described in the APR documentation -->
    <!--
    <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
               maxThreads="150" scheme="https" secure="true"
               clientAuth="false" sslProtocol="TLS" />
    -->

    <!-- Define an AJP 1.3 Connector on port 8009 -->
    <Connector port="8011" protocol="AJP/1.3" redirectPort="8443" />


    <!-- An Engine represents the entry point (within Catalina) that processes
         every request.  The Engine implementation for Tomcat stand alone
         analyzes the HTTP headers included with the request, and passes them
         on to the appropriate Host (virtual host).
         Documentation at /docs/config/engine.html -->

    <!-- You should set jvmRoute to support load-balancing via AJP ie :
    <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
    -->
    <Engine name="Catalina" defaultHost="localhost">

      <!--For clustering, please take a look at documentation at:
          /docs/cluster-howto.html  (simple how to)
          /docs/config/cluster.html (reference documentation) -->
      <!--
      <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
      -->

      <!-- Use the LockOutRealm to prevent attempts to guess user passwords
           via a brute-force attack -->
      <Realm className="org.apache.catalina.realm.LockOutRealm">
        <!-- This Realm uses the UserDatabase configured in the global JNDI
             resources under the key "UserDatabase".  Any edits
             that are performed against this UserDatabase are immediately
             available for use by the Realm.  -->
        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
               resourceName="UserDatabase"/>
      </Realm>

      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">

        <!-- SingleSignOn valve, share authentication between web applications
             Documentation at: /docs/config/valve.html -->
        <!--
        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
        -->

        <!-- Access log processes all example.
             Documentation at: /docs/config/valve.html
             Note: The pattern used is equivalent to using pattern="common" -->
        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log." suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" />

      </Host>
    </Engine>
  </Service>
</Server>

然後把tomact8081裏面的webapps文件夾裏面的ROOT文件夾裏面的index.jsp變成下面這樣，此時可以看到下面輸入的內容是8081

<%--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements.  See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License.  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
--%>
<!DOCTYPE html>
<%@ page session="false" %>
<%
java.text.SimpleDateFormat sdf = new java.text.SimpleDateFormat("yyyy");
request.setAttribute("year", sdf.format(new java.util.Date()));
request.setAttribute("tomcat7Url", "http://tomcat.apache.org/");
request.setAttribute("tomcat7DocUrl", "/docs/");
request.setAttribute("tomcat7ExamplesUrl", "/examples/");
%>
<html lang="en">
    <head>
        <title><%=request.getServletContext().getServerInfo() %></title>
        <link href="favicon.ico" rel="icon" type="image/x-icon" />
        <link href="favicon.ico" rel="shortcut icon" type="image/x-icon" />
        <link href="tomcat.css" rel="stylesheet" type="text/css" />
    </head>

    <body>
		<h1>tomcat8081index.jsp<h1>
    </body>

</html>

然後把tomact8082裏面的webapps文件夾裏面的ROOT文件夾裏面的index.jsp變成下面這樣，此時可以看到下面輸入的內容是8082

<%--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements.  See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License.  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
--%>
<!DOCTYPE html>
<%@ page session="false" %>
<%
java.text.SimpleDateFormat sdf = new java.text.SimpleDateFormat("yyyy");
request.setAttribute("year", sdf.format(new java.util.Date()));
request.setAttribute("tomcat7Url", "http://tomcat.apache.org/");
request.setAttribute("tomcat7DocUrl", "/docs/");
request.setAttribute("tomcat7ExamplesUrl", "/examples/");
%>
<html lang="en">
    <head>
        <title><%=request.getServletContext().getServerInfo() %></title>
        <link href="favicon.ico" rel="icon" type="image/x-icon" />
        <link href="favicon.ico" rel="shortcut icon" type="image/x-icon" />
        <link href="tomcat.css" rel="stylesheet" type="text/css" />
    </head>

    <body>
		<h1>tomcat8082index.jsp<h1>
    </body>

</html>

然後就是啓動tomcat8081和tomcat8082，啓動如下所示

/root/tomcat8081/bin/startup.sh
/root/tomcat8082/bin/startup.sh

然後訪問http://47.91.248.236:8081/ 路徑結果如下，成功了

在這裏插入圖片描述
然後訪問http://47.91.248.236:8082/ 路徑結果如下，成功了
在這裏插入圖片描述

然後我們配置本地電腦裏面的host文件變成下面這樣

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
#	127.0.0.1       localhost
#	::1             localhost

47.91.248.236 www.sina.com

在這裏插入圖片描述

然後通過EditPlus配置nginx服務器裏面的conf文件夾裏面的nginx.conf配置文件，配置完之後記得要重啓nginx服務器

怎麼通過EditPlus操作nginx服務器裏面的nginx.conf配置文件，看這個鏈接：https://blog.csdn.net/weixin_43689480/article/details/95867289

然後講解下面的配置：就比如下面的 # tomcat1註釋，當訪問www.sina.com 的時候，就會訪問host文件，然後就會去找47.91.248.236 這個ip對應的linux服務器，然後www.sina.com 默認的端口就是80，所以訪問www.sina.com 的時候，就會被下面的藍色代碼給捕獲到，然後下面的藍色代碼裏面的server就會找到藍色代碼裏面的upstream tomcat1裏面的server 47.91.248.236:8081和server 47.91.248.236:8082，然後呢因爲我們配置配置權重，所以當第一次訪問www.sina.com 這個域名的時候，就會先找到8081端口的tomcat服務器，然後當第二次訪問www.sina.com 這個域名的時候，就會先找到8082端口的tomcat服務器，然後當第三次訪問www.sina.com 這個域名的時候，就會先找到8081端口的tomcat服務器，然後當第四次訪問www.sina.com 這個域名的時候，就會先找到8082端口的tomcat服務器，


user  root;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;
    # tomcat1註釋開始

    upstream tomcat1 {
	server 47.91.248.236:8081;
	server 47.91.248.236:8082;
    }
    server {
        listen       80;
        server_name  www.sina.com;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            proxy_pass   http://tomcat1;
            index  index.html index.htm;
        }
    }
    # tomcat1註釋結束

}

然後我們訪問 www.sina.com

第一次訪問
在這裏插入圖片描述
第二次訪問
在這裏插入圖片描述
從上面的結果可以看出來nginx的負載均衡搞定了

Nginx的負載均衡怎麼實現不同服務器的訪問次數不同

就是用下面的weight屬性就好了，默認的每一個服務器的weight都是1，然後weigth的值越大，表示訪問該服務器的次數越高，所以如果好一點的服務器，那麼我麼就把這個服務器的weight的值變大一些，如果服務器差一些，那麼就把這個服務器的weight的值變小一些


#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    upstream tomcat1 {
	server 47.91.248.236:8081;
	server 47.91.248.236:8082 weight 2;
    }
    server {
        listen       80;
        server_name  www.sina.com.cn;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            proxy_pass   http://tomcat1;
            index  index.html index.htm;
        }
    }

}

能看到這裏的同學，就幫忙點個贊吧，Thanks♪(･ω･)ﾉ

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原創 2024-02-07 13:55:28

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Nginx介紹(可以把項目搭建到多個服務器上，並且可以操作單個的服務器啓動或者關閉。) Nginx ("engine x") 是一個高性能的HTTP和反向代理服務器，也是一個IMAP/POP3/SMTP服務器。Nginx是由Igor Sys

原創 2023-10-10 02:24:02

K8s集羣部署之高可用

上一篇文章我們已經將k8s集羣部署成功,但是我們只是部署了單節master點的k8s,接下來我們要部署master的高可用節點,此時我們用到了lb節點,那麼lb節點需要部署多節點避免單點故障 架構 環境 系統               

原創 2022-04-30 13:38:56

本地配置nginx代理

server { listen 80; server_name localhost; charset utf8; #access_log logs/host.access.log main;

原創 2021-06-21 21:32:53

nginx與php-fpm兩種通信方式

unix socket方式要比tcp的方式快，而且消耗資源少，因爲socket之間在nginx和php-fpm的進程之間通信，而tcp需要經過本地迴環驅動，還要申請臨時端口和tcp相關資源。 unix socket會顯得不是那麼穩定，當併發

原創 2021-01-30 21:18:56

Nginx添加Lua模塊

在已經運行的nginx服務器上面添加Lua模塊。 1 下載LuaJit cd /usr/local wget http://luajit.org/download/LuaJIT-2.0.5.tar.gz tar xf LuaJIT-2.

原創 2021-01-30 10:34:25

Nginx——Centos安裝Nginx

1、進入Nginx官網下載Nginx 官網下載網址：http://nginx.org/en/download.html 使用 wget 命令選擇下載穩定版（Stable Version）（我下載到 /opt 文件目錄下） wget ht

Hern（宋兆恒） 2020-07-08 12:36:46

Nginx——Nginx簡介與特點

Nginx簡介 Nginx 是俄羅斯人編寫的十分輕量級的 HTTP 服務器,Nginx，它的發音爲“engine X”，是一個高性能的HTTP和反向代理服務器，同時也是一個 IMAP/POP3/SMTP 代理服務器。Nginx 是由俄羅斯

Hern（宋兆恒） 2020-07-08 12:36:46

Nginx——Nginx的connection、request、keepalive、pipe（pipeline）、lingering_close

connection Nginx 中 connection 是對 tcp 連接的封裝，包括連接的 socket，讀、寫事件等。利用 Nginx 封裝的 connection可以很方便的使用 Nginx 來處理與連接相關的事情，如建立連接，

Hern（宋兆恒） 2020-07-08 12:36:46

Nginx——Nginx原理

Nginx 在啓動後，會有一個 master 進程和多個 worker 進程。master 進程主要用來管理 worker 進程，包含：接收來自外界的信號，向各 worker 進程發送信號，監控 worker 進程的運行狀態，當 wor

Hern（宋兆恒） 2020-07-08 12:36:46

nginx配置文件優化（詳細）

nginx優化項 隱藏nginx版本 nginx 配置項優化 開啓高效傳輸模式 fastcgi 調優 gzip 調優 expires 緩存調優 內核參數優化 系統連接數的優化 準備nginx測試環境 nginx安裝略

@Mr.李 2020-07-08 10:27:52

Nginx+php+mysql超時問題總結

背景：2020/07/06 02:58:19 [error] 31066#0: *3921 upstream timed out (110: Connection timed out) while reading response hea

有理想的咸鱼丶 2020-07-08 06:27:11

Nginx基礎知識點彙總1

1. 技術背景 水平擴展的可用性都需要靈活的負載均衡解決方案才能得以保障，NGINX 提供了多種協議的負載均衡解決方案如：HTTP、TCP 和 UDP 負載均衡。 2. HTTP實例 問題：將用戶請求分發到 2 臺以上 HTTP

LianXu3344 2020-07-08 06:19:43