Apache2 不加载 mod_cluster 个模块

Question

我正在使用 kvm 在 open nebula 中实例化的 debian jessie 机器。我要安装jboss eap和mod_cluster，所以我需要安装apache2服务

我按照 mod_cluster 快速入门指南设置 /etc/apache2/apache2.conf 文件如下：

LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
LoadModule slotmem_module modules/mod_slotmem.so
LoadModule manager_module modules/mod_manager.so
LoadModule proxy_cluster_module modules/mod_proxy_cluster.so
LoadModule advertise_module modules/mod_advertise.so

ServerName master
Listen 10.0.0.6:6666
<VirtualHost 10.0.0.6:6666>
  <Directory />
    Order deny,allow
    Deny from all
    Allow from 10.0.0.
</Directory>

KeepAliveTimeout 60
MaxKeepAliveRequests 0
ManagerBalancerName nebula
AdvertiseFrequency 5

<Location /mod_cluster_manager>
  Order deny,allow
  Deny from all
  Allow from 10.0.0.
</Location>

当我运行命令/etc/init.d/apache2启动它return错误时，systemctl status apache2.service -l 显示我：

apache2.service - LSB: Apache2 web server
Loaded: loaded (/etc/init.d/apache2)
Active: failed (Result: exit-code) since Wed 2015-12-16 15:17:45 CET; 10min ago
Process: 844 ExecStart=/etc/init.d/apache2 start (code=exited, status=1/FAILURE)

Dec 16 15:17:45 debian apache2[844]: Starting web server: apache2 failed!
Dec 16 15:17:45 debian apache2[844]: The apache2 configtest failed. ... (warning).
Dec 16 15:17:45 debian apache2[844]: Output of config test was:
Dec 16 15:17:45 debian apache2[844]: apache2: Syntax error on line 1 of /etc/apache2/apache2.conf: Cannot load modules/mod_proxy.so into server: /etc/apache2/modules/mod_proxy.so: undefined symbol: ap_escape_html
Dec 16 15:17:45 debian apache2[844]: Action 'configtest' failed.
Dec 16 15:17:45 debian apache2[844]: The Apache error log may have more information.
Dec 16 15:17:45 debian systemd[1]: apache2.service: control process exited, code=exited status=1
Dec 16 15:17:45 debian systemd[1]: Failed to start LSB: Apache2 web server.
Dec 16 15:17:45 debian systemd[1]: Unit apache2.service entered failed state.

我无法理解 "undefined symbol: ap_escape_html" 的含义以及如何解决它。

在此先感谢您的帮助。

更新 1：我尝试从源代码构建 httpd。我也从源代码安装了 pcre 库，但是当我运行 PREFIX/bin/apachectl -k 启动它时 returns 出现以下错误：

/etc/httpd/bin/httpd: error while loading shared libraries: libpcre.so.1: cannot open shared object file: No such file or directory

Answer 1

我解决了这个 guide

之后的库问题

Apache2 不加载 mod_cluster 个模块

Apache2 doesn't load mod_cluster modules

debian

jboss

apache2

opennebula

mod-cluster