redmine安装遇到问题列表为:
  1、redmine版本过低导致部分功能报错
  2、ruby源总是提示连接失败
  3、mysql2组件安装失败
  4、redmine web无法连接
  问题描述以及处理过程为:
  1、redmine版本过低导致部分功能报错
  redmine版本是要依赖ruby以及rails的环境,安装过低的版本会导致部分功能报错。
  比如在ruby2.2和rails4.2环境下,redmine版本为2.3.stable将出现报错功能。
  处理办法为:提高redmine的版本
  http://www.redmine.org/projects/redmine/wiki/Download
  2、ruby源总是提示连接失败
  ruby源无法连接,提示失败导致安装失败。
  处理办法为:变更ruby源为淘宝ruby源。
  gem sources -l # 查看当前源
  gem sources -a http://ruby.taobao.org # 添加上淘宝ruby源
  gem sources -r https://rubygems.org/ # 移除掉官方的ruby源
  gem install rails # 变更完源后,尝试安装rails环境
  另外在redmine主目录也要变更下GenFile配置
  cd /usr/local/redmine-3.0.0
  vim Gemfile # 编辑文件第一行,将源改为淘宝ruby源
  source 'https://ruby.taobao.org'
  3、mysql2组件安装失败
  在gem instlal mysql2提示安装失败,缺少mysql.h相关文件。
  完整报错信息为:
/usr/local/rvm/rubies/ruby-2.2.1/bin/ruby -r ./siteconf20150312-38008-rlgqip.rb extconf.rb
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... no
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
-----
Using mysql_config at /usr/bin/mysql_config
-----
checking for mysql.h... no
checking for mysql/mysql.h... no
-----
mysql.h is missing. please check your installation of mysql and try again.
-----
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/rvm/rubies/ruby-2.2.1/bin/$(RUBY_BASE_NAME)
--with-mysql-dir
--without-mysql-dir
--with-mysql-include
--without-mysql-include=${mysql-dir}/include
--with-mysql-lib
--without-mysql-lib=${mysql-dir}/lib
--with-mysql-config
--without-mysql-config
extconf failed, exit code 1
  处理办法为:mysql-devel版本过低导致的,命令为:
  su root
  yum install mysql-devel
  4、redmine web无法连接
  redmine服务启动成功后,浏览器访问http://192.168.10.107:3000
  无法访问到内容,在本地telnet 192.168.10.107 3000连接不上。
  处理办法为:
  192.168.10.107是在一个局域网内部的IP,redmine启动默认绑定的locahost端口为3000
  a、检查防火墙设置,开放3000端口。
  b、localhost多绑定一个hosts,编辑/etc/hosts即可。
  redmine 41271 1 0 20:24 ? 00:00:00 ruby ./rails server -e production -d
  netstat -alnp|grep 41271 # 查看pid监听端口情况
  绑定监听情况列表为:
  tcp 0 0 192.168.10.107:3000 0.0.0.0:* LISTEN 41271/ruby
  tcp 0 0 127.0.0.1:3000 0.0.0.0:* LISTEN 41271/ruby
  tcp 0 0 ::1:3000 :::* LISTEN 41271/ruby
  unix 3 [ ] STREAM CONNECTED 131877 41271/ruby
  检查完毕后,再次访问即可看到正常的redmine web内容了。