問題排查：The requested URL /test/index.jsp was not found on this server

問題描述

添加一個新模塊，部署在服務器上。服務器上還部署有其他模塊且訪問正常，新模塊和其他模塊共用同一個域名。服務部署之后，請求如下：
http://my.domain.com/test/index.jsp
返回

Not Found

The requested URL /test/index.jsp was not found on this server.

解決步驟

• 登入服務器，查看tomcat的webapp目錄下，發現有test目錄和/test/index.jsp文件。
• 查看/tomcat/conf/server.xml中connector的配置：

    <Connector executor="tomcatThreadPool"
               port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />

• 本地訪問嘗試：

http://localhost:8080/test/index.jsp 正常
http://localhost:80/test/index.jsp Not Found
http://my.domain.com:8080/test/index.jsp 正常
http://my.domain.com:80/test/index.jsp Not Found
得出結論，端口號與模塊匹配有限制。

• http服務使用的是apache，網上搜索關於apache多端口多目錄的配置方法。找到配置文件后參照之前模塊的格式進行配置。
• /cong/httpd.conf 文件中，確保這句Include conf/extra/httpd-vhosts.conf沒有被注釋掉。
• 然后打開/conf/extra/httpd-vhosts.conf 文件查看配置，參照之前的配置，如下：

 <VirtualHost *:80>
    ServerName my.domain.com
    ProxyRequests Off

    <Location /test>
       ProxyPass balancer://test/
       ProxyPassReverse balancer://test/
    </Location>

    <Proxy balancer://test>
        Order Deny,Allow
        Allow from all
        BalancerMember http://127.0.0.1:8080/test
        ProxySet lbmethod=byrequests
    </Proxy>
</VirtualHost>

• 重啟apache服務器

./apachectl restart
返回：
httpd not running, trying to start
(13)Permission denied: make_sock: could not bind to address [::]:80
(13)Permission denied: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs

命令： sudo ./apachectl restart
返回：
(98)Address already in use: make_sock: could not bind to address [::]:80
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs

命令：sudo killall httpd
sudo：killall：找不到命令

ps axu| grep httpd
sudo kill -9 365 355 367 383 398 //刪除這些httpd進程
sudo ./apachectl start 啟動成功

• 訪問 http://my.domain.com/test/index.jsp， 數據正常