Avamar：Tomcat 问题 — 客户端管理器不可访问。对 server.xml 所做的更改不是永久性的

摘要: 对 server.xml 进行了更改，但重新启动 tomcat 服务将恢复更改。 本知识库文章还讨论了由于端口 8509 无法侦听 127.0.0.1 而无法访问 tomcat 的位置。

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症状

Tomcat 已启动，但 AAM （Client Manager） 网页不可访问： 
服务不可用错误
/var/log/apache2/mod_jk.log 在端口 8509 上连接时显示错误。 
[Tue Aug 16 17:57:01 2022] [26136:139641497630912] [info] jk_open_socket::jk_connect.c (758): connect to 127.0.0.1:8509 failed (errno=111)
[Tue Aug 16 17:57:01 2022] [26136:139641497630912] [info] ajp_connect_to_endpoint::jk_ajp_common.c (1019): Failed opening socket to (127.0.0.1:8509) (errno=111)
[Tue Aug 16 17:57:01 2022] [26136:139641497630912] [error] ajp_send_request::jk_ajp_common.c (1663): (cas) connecting to backend failed. Tomcat is probably not started or is listening on the wrong port (errno=111)
[Tue Aug 16 17:57:01 2022] [26136:139641497630912] [info] ajp_service::jk_ajp_common.c (2673): (cas) sending request to tomcat failed (recoverable), because of error during request sending (attempt=1)
[Tue Aug 16 17:57:01 2022] [26136:139641497630912] [info] jk_open_socket::jk_connect.c (758): connect to 127.0.0.1:8509 failed (errno=111)
[Tue Aug 16 17:57:01 2022] [26136:139641497630912] [info] ajp_connect_to_endpoint::jk_ajp_common.c (1019): Failed opening socket to (127.0.0.1:8509) (errno=111)
[Tue Aug 16 17:57:01 2022] [26136:139641497630912] [error] ajp_send_request::jk_ajp_common.c (1663): (cas) connecting to backend failed. Tomcat is probably not started or is listening on the wrong port (errno=111)
[Tue Aug 16 17:57:01 2022] [26136:139641497630912] [info] ajp_service::jk_ajp_common.c (2673): (cas) sending request to tomcat failed (recoverable), because of error during request sending (attempt=2)
[Tue Aug 16 17:57:01 2022] [26136:139641497630912] [error] ajp_service::jk_ajp_common.c (2693): (cas) connecting to tomcat failed.
[Tue Aug 16 17:57:01 2022] [26136:139641497630912] [info] jk_handler::mod_jk.c (2837): Service error=-3 for worker=cas

Curl 到端口 8509 到 localhost 显示连接被拒绝。 
root@testlab:/usr/local/avamar-tomcat/conf/#: curl -kv https://127.0.0.1:8509
* Rebuilt URL to: https://127.0.0.1:8509/
*   Trying 127.0.0.1...
* TCP_NODELAY set
* connect to 127.0.0.1 port 8509 failed: Connection refused
* Failed to connect to 127.0.0.1 port 8509: Connection refused
* Closing connection 0
curl: (7) Failed to connect to 127.0.0.1 port 8509: Connection refused
 


 
 

原因

端口 8509 未侦听 localhost。

解决方案

1.以管理员用户身份登录到 Avamar Server，然后升级到 root 用户：

2.备份现有 server.xml 配置文件：  
cp -p /usr/local/avamar-tomcat/conf/server.xml /usr/local/avamar-tomcat/conf/server.xml-orig
cp -p  /usr/local/avamar/etc/server.xml /usr/local/avamar/etc/server.xml-orig

3.编辑 /usr/local/avamar-tomcat/conf/server.xml  和 /usr/local/avamar/etc/server.xml ，添加下面突出显示的行：  
    
    
     
 
4.保存并关闭文件。

5.重新启动 tomcat 和 Apache：  
emwebapp.sh --restart
service apache2 restart
 
 
文章属性
文章编号: 000203109
文章类型: Solution
上次修改时间: 14 7月 2023
版本:  2
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