Mongodb的默认端口号27017

_id是全局唯一值，不要去给这个列赋值，默认是唯一的，如果赋值，列入有两列的_id:2，则会报冲突不能插入

[root@HE4 ~]# tar xvf mongodb-linux-x86_64-2.6.10.tgz

[root@HE4 ~]# mkdir -p /export/mongodb

[root@HE4 ~]# mkdir -p /export/mongodb/bin

[root@HE4 ~]# mkdir -p /export/mongodb/conf

[root@HE4 ~]# mkdir -p /export/mongodb/log

[root@HE4~]# mkdir -p /export/mongodb/data

[root@HE4bin]# cd /root/mongodb-linux-x86_64-2.6.10/bin

[root@HE4bin]# cp /root/mongodb-linux-x86_64-2.6.10/bin/* /export/mongodb/bin/

[root@HE4conf]# vi /export/mongodb/conf/mongod.conf

[root@HE4conf]# cat mongod.conf

port=27408

dbpath=/export/mongodb/data

logpath=/export/mongodb/log/mongod.log

fork=true

[root@HE4bin]# cd /export/mongodb/bin

[root@HE4bin]# ./mongod -f /export/mongodb/conf/mongod.conf

[root@HE4bin]# ./mongo --port 20011

>

>

> showdbs;

admin  (empty)

local  0.078GB

> useadmin;

switchedto db admin

>db.shutdownServer()

[root@HE4bin]# netstat -anlp|grep mongod

[root@HE4bin]# ./mongo --port 20011

> usehelei;

switchedto db helei

>db.t1.insert({id:1})

WriteResult({"nInserted" : 1 })

>db.t1.insert({id:2});

WriteResult({"nInserted" : 1 })

>db.t1.find()

{"_id" : ObjectId("57033a5eade0255b255b4e22"),"id" : 1 }

{"_id" : ObjectId("57033a6bade0255b255b4e23"),"id" : 2 }