官方安装手册
在施秉等地区，都构建了全面的区域性战略布局，加强发展的系统性、市场前瞻性、产品创新能力，以专注、极致的服务理念，为客户提供成都做网站、成都网站设计、成都外贸网站建设 网站设计制作按需定制,公司网站建设,企业网站建设,成都品牌网站建设,网络营销推广,外贸营销网站建设,施秉网站建设费用合理。
http://docs.MongoDB.org/manual/tutorial/install-mongodb-on-red-hat/
安装完成后，登录出现如下告警：
1.登录mongo shell
[root@localhost ~]# mongo
缺少openssl、libssh3
yum -y install openssl service mongod restart
2.I use mongodb 3.0 and find a warning:
[root@localhost ~]# mongo MongoDB shell version: 3.0.1 connecting to: test Server has startup warnings: 2015-03-13T16:28:29.405+0800 I CONTROL [initandlisten] 2015-03-13T16:28:29.406+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'. 2015-03-13T16:28:29.406+0800 I CONTROL [initandlisten] ** We suggest setting it to 'never' 2015-03-13T16:28:29.406+0800 I CONTROL [initandlisten] 2015-03-13T16:28:29.407+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'. 2015-03-13T16:28:29.407+0800 I CONTROL [initandlisten] ** We suggest setting it to 'never' 2015-03-13T16:28:29.407+0800 I CONTROL [initandlisten]
solved:
vi /etc/init.d/mongod #行首添加 if test -f /sys/kernel/mm/transparent_hugepage/enabled; then echo never > /sys/kernel/mm/transparent_hugepage/enabled fi if test -f /sys/kernel/mm/transparent_hugepage/defrag; then echo never > /sys/kernel/mm/transparent_hugepage/defrag fi 重启mongod service mongod restart
3.Recommended ulimit Settings
Every deployment may have unique requirements and settings; however, the following thresholds and settings are particularly important for mongod and mongos deployments:
-f (file size): unlimited
-t (cpu time): unlimited
-v (virtual memory): unlimited [1]
-n (open files): 64000
-m (memory size): unlimited [1] [2]
-u (processes/threads): 64000
Always remember to restart your mongod and mongos instances after changing the ulimit settings to ensure that the changes take effect.
vi /etc/profile
在最后添加
ulimit -n 64000
ulimit -u 64000
source /etc/profile
2015-04-02T01:36:21.150-0700 I CONTROL [initandlisten] 2015-04-02T01:36:21.150-0700 I CONTROL [initandlisten] ** WARNING: soft rlimits too low. rlimits set to 1024 processes, 64000 files. Number of processes should be at least 32000 : 0.5 times number of files.