运行yum命令查看MongoDB的包信息
[root@localhost~]# yum info mongo-10gen
（提示没有相关匹配的信息，） 说明你的centos系统中的yum源不包含MongoDB的相关资源，所以要在使用yum命令安装MongoDB前需要增加yum源，也就是在 /etc/yum.repos.d/目录中增加 *.repo yum源配置文件2、vi /etc/yum.repos.d/10gen.repo，
输入下面的语句：
[10gen] name=10gen Repository baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64 gpgcheck=0 做好yum源的配置后，如果配置正确执行下面的命令便可以查询MongoDB相关的信息： 3、查看mongoDB的服务器包的信息 [root@localhost geffzhang]# yum info mongo-10gen-server * base: centos.ustc.edu.cn * extras: centos.ustc.edu.cn * updates: centos.ustc.edu.cn Installed Packages Name : mongo-10gen-server Arch : x86_64 Version : 2.0.6 Release : mongodb_1 Size : 13 M Repo : installed From repo : 10gen Summary : mongo server, sharding server, and support scripts URL : http://www.mongodb.org License : AGPL 3.0 Description : Mongo (from "huMONGOus") is a schema-free document-oriented : database. : : This package provides the mongo server software, mongo sharding : server softwware, default configuration files, and init.d scripts.
4、查看客户端安装情况
[root@localhost geffzhang]# * base: centos.ustc.edu.cn * extras: centos.ustc.edu.cn * updates: centos.ustc.edu.cn Installed Packages Name : mongo-10gen Arch : x86_64 Version : 2.0.6 Release : mongodb_1 Size : 69 M Repo : installed From repo : 10gen Summary : mongo client shell and tools URL : http://www.mongodb.org License : AGPL 3.0 Description : Mongo (from "huMONGOus") is a schema-free document-oriented : database. It features dynamic profileable queries, full indexing, : replication and fail-over support, efficient storage of large : binary data objects, and auto-sharding. : : This package provides the mongo shell, import/export tools, and : other client utilities. 5、安装MongoDB的服务器端和客户端工具 [root@localhost geffzhang]# yum install mongo-10gen-server [root@localhost geffzhang]# yum install mongo-10gen 6、启动Mongodb service mongod start 以后有更新了，停掉mongodb，执行yum update mongo-10gen mongo-10gen-server 即可。 7、服务器配置: /etc/mongod.conf # mongo.conf #where to log logpath=/var/log/mongo/mongod.log logappend=true #以追加方式写入日志 # fork and run in background fork = true #port = 27017 #端口 dbpath=/var/lib/mongo #数据库文件保存位置 directoryperdb=true # Enables periodic logging of CPU utilization and I/O wait #启用定期记录CPU利用率和 I/O 等待 #cpu = true # Turn on/off security. Off is currently the default # 是否以安全认证方式运行，默认是不认证的非安全方式 #noauth = true #auth = true # Verbose logging output. # 详细记录输出 #verbose = true # Inspect all client data for validity on receipt (useful for # developing drivers)用于开发驱动程序时的检查客户端接收数据的有效性 #objcheck = true # Enable db quota management 启用数据库配额管理，默认每个db可以有8个文件，可以用quotaFiles参数设置 #quota = true # 设置oplog记录等级 # Set oplogging level where n is # 0=off (default) # 1=W # 2=R # 3=both # 7=W+some reads #oplog = 0 # Diagnostic/debugging option 动态调试项 #nocursors = true # Ignore query hints 忽略查询提示 #nohints = true # 禁用http界面，默认为localhost：28017 # Disable the HTTP interface (Defaults to localhost:27018).这个端口号写的是错的 #nohttpinterface = true # 关闭服务器端脚本，这将极大的限制功能 # Turns off server-side scripting. This will result in greatly limited # functionality #noscripting = true # 关闭扫描表，任何查询将会是扫描失败 # Turns off table scans. Any query that would do a table scan fails. #notablescan = true # 关闭数据文件预分配 # Disable data file preallocation. #noprealloc = true # 为新数据库指定.ns文件的大小，单位:MB # Specify .ns file size for new databases. # nssize = <size> # Accout token for Mongo monitoring server. #mms-token = <token> # mongo监控服务器的名称 # Server name for Mongo monitoring server. #mms-name = <server-name> # mongo监控服务器的ping 间隔 # Ping interval for Mongo monitoring server. #mms-interval = <seconds> # Replication Options 复制选项 # in replicated mongo databases, specify here whether this is a slave or master 在复制中，指定当前是从属关系 #slave = true #source = master.example.com # Slave only: specify a single database to replicate #only = master.example.com # or #master = true #source = slave.example.com