red hat 安装 mongodb

发现更方便的安装方法，直接下载压缩包，解压后把目录放到/usr/local目录下，然后在把mongodb/bin加入到path中。这样就可以使用了：

参考：http://www.runoob.com/mongodb/mongodb-linux-install.html

下载完安装包，并解压 tgz（以下演示的是 64 位 Linux上的安装） 。curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-3.0.6.tgz    # 下载tar -zxvf mongodb-linux-x86_64-3.0.6.tgz                                   # 解压mv  mongodb-linux-x86_64-3.0.6/ /usr/local/mongodb                         # 将解压包拷贝到指定目录MongoDB 的可执行文件位于 bin 目录下，所以可以将其添加到 PATH 路径中：export PATH=<mongodb-install-directory>/bin:$PATH< mongodb-install-directory > 为你 MongoDB 的安装路径。如本文的 /usr/local/mongodb 

刚开始参照官网（https://docs.mongodb.org/master/tutorial/install-mongodb-on-red-hat/）上的步骤来安装，但是总是访问不了，提示http连接超时，大概是被墙了，因为ping 这个域名也不通。后来打算从源码开始安装，从github下载源码之后又有python版本跟yum之间依赖的问题不好解决，服务器上的软件版本都太老了，一筹莫展之后发现官网上还有之前更早的版本，比如2.6的，索性就试试吧
新建/etc/yum.repos.d/mongodb-org-2.6.repo，写入如下内容

[mongodb-org-2.6]name=MongoDB 2.6 Repositorybaseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/gpgcheck=0enabled=1

因为

To install a specific release of MongoDB, specify each component package individually and append the version number to the package name, as in the following example

所以在http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/RPMS/ 里面找到2.6的文件，比如mongodb-org-2.6.0-1,执行

yum install -y mongodb-org-2.6.0-1

系统会各种dependency都给安上

    Setting up Install ProcessResolving Dependencies--> Running transaction check---> Package mongodb-org.x86_64 0:2.6.0-1 set to be updated--> Processing Dependency: mongodb-org-tools = 2.6.0 for package: mongodb-org--> Processing Dependency: mongodb-org-shell = 2.6.0 for package: mongodb-org--> Processing Dependency: mongodb-org-server = 2.6.0 for package: mongodb-org--> Processing Dependency: mongodb-org-mongos = 2.6.0 for package: mongodb-org--> Running transaction check---> Package mongodb-org-mongos.x86_64 0:2.6.0-1 set to be updated---> Package mongodb-org-server.x86_64 0:2.6.0-1 set to be updated---> Package mongodb-org-shell.x86_64 0:2.6.0-1 set to be updated---> Package mongodb-org-tools.x86_64 0:2.6.0-1 set to be updated--> Finished Dependency ResolutionDependencies Resolved============================================================================================================================================= Package                                 Arch                        Version                      Repository                            Size=============================================================================================================================================Installing: mongodb-org                             x86_64                      2.6.0-1                      mongodb-org-2.6                      4.6 kInstalling for dependencies: mongodb-org-mongos                      x86_64                      2.6.0-1                      mongodb-org-2.6                      6.8 M mongodb-org-server                      x86_64                      2.6.0-1                      mongodb-org-2.6                      8.9 M mongodb-org-shell                       x86_64                      2.6.0-1                      mongodb-org-2.6                      4.2 M mongodb-org-tools                       x86_64                      2.6.0-1                      mongodb-org-2.6                       88 MTransaction Summary=============================================================================================================================================Install       5 Package(s)Upgrade       0 Package(s)Total download size: 108 MDownloading Packages:(1/5): mongodb-org-2.6.0-1.x86_64.rpm                                                                                 | 4.6 kB     00:00     (2/5): mongodb-org-shell-2.6.0-1.x86_64.rpm                                                                           | 4.2 MB     00:06     (3/5): mongodb-org-mongos-2.6.0-1.x86_64.rpm                                                                          | 6.8 MB     00:06     (4/5): mongodb-org-server-2.6.0-1.x86_64.rpm                                                                          | 8.9 MB     00:08     (5/5): mongodb-org-tools-2.6.0-1.x86_64.rpm                                                                           |  88 MB     00:57     ---------------------------------------------------------------------------------------------------------------------------------------------Total                                                                                                        1.3 MB/s | 108 MB     01:21     Running rpm_check_debugRunning Transaction TestFinished Transaction TestTransaction Test SucceededRunning Transaction  Installing     : mongodb-org-server                                                                                                    1/5   Installing     : mongodb-org-shell                                                                                                     2/5   Installing     : mongodb-org-mongos                                                                                                    3/5   Installing     : mongodb-org-tools                                                                                                     4/5   Installing     : mongodb-org                                                                                                           5/5 Installed products updated.Installed:  mongodb-org.x86_64 0:2.6.0-1                                                                                                               Dependency Installed:  mongodb-org-mongos.x86_64 0:2.6.0-1            mongodb-org-server.x86_64 0:2.6.0-1            mongodb-org-shell.x86_64 0:2.6.0-1             mongodb-org-tools.x86_64 0:2.6.0-1            Complete!

启动后如果遇到空间不足的问题，可以参考这里(http://stackoverflow.com/questions/14584393/why-getting-error-mongod-dead-but-subsys-locked-and-insufficient-free-space-for)

我在执行service mongod start 时提示source: command not found ,只好执行 /etc/init.d/mongod start 或者/sbin/service mongod start 来启动mongod。