Centos6.4搭建Redis集群遇到的几个问题汇总

其实Redis集群的搭建是比较简单的,比oracle,mysql,mongodb都简单.但是其中还是有很多坑.我搞了两天才把所有的坑填完,下面是遇到的几个错误,尤其是最后一个坑.搞了很久才解决:

1.ruby的版本过低,直接删除原来的ruby版本,下载最新的ruby重新编译安装.

2.#gem install redis的报错:

ERROR: Loading command: install (LoadError)

no such file to load -- zlib

ERROR: While executing gem ... (NameError)

uninitialized constant Gem::Commands::InstallCommand

解决办法是：

进入ruby源码文件夹

安装ruby自身提供的zlib包

#cd ext/zlib

#ruby ./extconf.rb

#make

#make install

3.配置群集，使用gem install 安装 ruby redis 接口时报：

[root@server zlib]# gem install redis

ERROR: While executing gem ... (Gem::Exception)

Unable to require openssl,install OpenSSL and rebuild ruby (preferred) or use non-HTTPS sources

解决方法:

yum -y install openssl-devel

yum -y install openssl

进入ruby 源码目录下的ext/openssl 目录：

cd /usr/local/src/ruby-2.2.3/ext/openssl/

执行 ruby ./extconf.rb ：

[root@server openssl]# ruby extconf.rb

checking for t_open() in -lnsl... no

checking for socket() in -lsocket... no

checking for assert.h... yes

checking for openssl/ssl.h... yes

..........................................................................中间略..........................................................................

checking for EVP_CTRL_GCM_GET_TAG in openssl/evp.h... yes

creating extconf.h

creating Makefile

将ruby 源码目录下的include 目录软链接到 / 目录下：

[root@server openssl]# ln -s /usr/local/src/ruby-2.2.3/include /

再编译安装：

make && make install

然后就好了！

再运行：

gem install redis

即可正常运行！！

4.在使用redis-trib.rb create --replicas 1 xxx来创建集群,在运行到下面的时候一直等待

>>> Nodes configuration updated

>>> Assign a different config epoch to each node

>>> Sending CLUSTER MEET messages to join the cluster

Waiting for the cluster to join.................................

这里一直等待join.

原因是在配置文件中的参数bind 写的有问题,

原来是bind 127.0.0.1 192.168.56.91

后来修改为bind 192.168.56.91 127.0.0.1

即将实际IP写在回环ip之前即可解决.