我的MongoDB工作流(centos-yum)

安装mongodb:

$ yum install  mongodb-server -y

$ yum install  mongodb -y

查看版本:

$ mongod -v
2017-07-11T20:12:29.537+0800 shardObjTest passed
2017-07-11T20:12:29.537+0800 isInRangeTest passed
2017-07-11T20:12:29.537+0800 shardKeyTest passed
2017-07-11T20:12:29.537+0800 [initandlisten] MongoDB starting : pid=14186 port=27017 dbpath=/data/db 64-bit host=iZ2ze46lyxfc5q7qi75e2wZ
2017-07-11T20:12:29.537+0800 [initandlisten] db version v2.6.12
2017-07-11T20:12:29.537+0800 [initandlisten] git version: nogitversion
2017-07-11T20:12:29.537+0800 [initandlisten] OpenSSL version: OpenSSL 1.0.1e-fips 11 Feb 2013
2017-07-11T20:12:29.537+0800 [initandlisten] build info: Linux buildvm-16.phx2.fedoraproject.org 4.8.12-300.fc25.x86_64 #1 SMP Fri Dec 2 17:52:11 UTC 2016 x86_64 BOOST_LIB_VERSION=1_53
2017-07-11T20:12:29.537+0800 [initandlisten] allocator: tcmalloc
2017-07-11T20:12:29.537+0800 [initandlisten] options: { systemLog: { verbosity: 1 } }
2017-07-11T20:12:29.537+0800 [initandlisten] User Assertion: 10296:
*********************************************************************
 ERROR: dbpath (/data/db) does not exist.
 Create this directory or give existing directory in --dbpath.
 See http://dochub.mongodb.org/core/startingandstoppingmongo
*********************************************************************

2017-07-11T20:12:29.538+0800 [initandlisten] exception in initAndListen: 10296
*********************************************************************
 ERROR: dbpath (/data/db) does not exist.
 Create this directory or give existing directory in --dbpath.
 See http://dochub.mongodb.org/core/startingandstoppingmongo
*********************************************************************
, terminating
2017-07-11T20:12:29.538+0800 [initandlisten] dbexit:
2017-07-11T20:12:29.538+0800 [initandlisten] shutdown: going to close listening sockets...
2017-07-11T20:12:29.538+0800 [initandlisten] shutdown: going to flush diaglog...
2017-07-11T20:12:29.538+0800 [initandlisten] shutdown: going to close sockets...
2017-07-11T20:12:29.538+0800 [initandlisten] shutdown: waiting for fs preallocator...
2017-07-11T20:12:29.538+0800 [initandlisten] shutdown: lock for final commit...
2017-07-11T20:12:29.538+0800 [initandlisten] shutdown: final commit...
2017-07-11T20:12:29.538+0800 [initandlisten] shutdown: closing all files...
2017-07-11T20:12:29.538+0800 [initandlisten] closeAllFiles() finished
2017-07-11T20:12:29.538+0800 [initandlisten] dbexit: really exiting now

修改mongo的配置文件:

$ vim /etc/mongod.conf

bind_ip = 0.0.0.0
port = 27017
auth=true

重启mongodb:

$ service mongod restart

关闭mongodb:

$ service mongod stop

(1)使用kill PID -2来关闭mongodb服务器(不要使用-9参数,会导致数据库文件损坏)。
(2)登录mongo客户端之后,切换到admin数据库,再调用db.shutdownServer()函数来关闭mongodb服务。

mongo 操作实例:

$ mongo
MongoDB shell version: 2.6.12
connecting to: test

显示所有数据库
> show dbs;
admin            (empty)
jiaxiaolei_test  0.078GB
local            0.078GB
切换到指定数据库
> use jiaxiaolei_test;
switched to db jiaxiaolei_test
查看当前所有表:
> show tables;
system.indexes
test
查看表test 中的全部数据;
> db.test.find();
{ "_id" : ObjectId("5965cd7867169d2ff6999555"), "name" : "jiaxiaolei", "age" : 20 }

导出数据:

$ mongodump –host [ip] -d cmdb
这里用 172.28.20.124 举例,导出cmdb database.
$ mongodump –host 172.28.20.124 -d cmdb

在当前目录下生成 dump 目录。

拷贝dump文件:

$ scp -r dump/ root@182.92.78.248:/root

导入dump 文件:
$ cd /root

$ mongorestore –drop

mongo 添加账户:(推荐使用createUser)

show dbs;
admin (empty)
cmdb 0.078GB
jiaxiaolei_test 0.078GB
local 0.078GB
uop 0.078GB
use uop;
switched to db uop
db.users
uop.users
db.addUser(‘uop’,’uop’)
WARNING: The ‘addUser’ shell helper is DEPRECATED. Please use ‘createUser’ instead
Successfully added user: { “user” : “uop”, “roles” : [ “dbOwner” ] }

show dbs;
admin 0.078GB
cmdb 0.078GB
jiaxiaolei_test 0.078GB
local 0.078GB
uop 0.078GB
use cmdb;
switched to db cmdb
db.addUser(‘cmdb’,’cmdb’)
WARNING: The ‘addUser’ shell helper is DEPRECATED. Please use ‘createUser’ instead
Successfully added user: { “user” : “cmdb”, “roles” : [ “dbOwner” ] }

mongo 的一个问题: TODO:

  1. dump restore 之后, db 鉴权没生效,

  2. 配置了 auth, 有时候不需要 db.auth() 也可以登录

鉴权失败:

use uop;
switched to db uop
db.uop.addUser(‘uop’,’uop’)
2017-07-14T02:54:09.944+0000 TypeError: Property ‘addUser’ of object uop.uop is not a function
db.addUser(‘uop’,’uop’)
WARNING: The ‘addUser’ shell helper is DEPRECATED. Please use ‘createUser’ instead
Successfully added user: { “user” : “uop”, “roles” : [ “dbOwner” ] }
use cmdb;
switched to db cmdb
db.addUser(‘cmdb’,’cmdb’)
WARNING: The ‘addUser’ shell helper is DEPRECATED. Please use ‘createUser’ instead
2017-07-14T02:55:17.196+0000 Error: couldn’t add user: not authorized on cmdb to execute command { createUser: “cmdb”, pwd: “xxx”, roles: [ “dbOwner” ], digestPassword: false, writeConcern: { w: “majority”, wtimeout: 30000.0 } } at src/mongo/shell/db.js:1086
use cmdb;
switched to db cmdb
show tables;
2017-07-14T02:55:47.634+0000 error: {
“$err” : “not authorized for query on cmdb.system.namespaces”,
“code” : 13
} at src/mongo/shell/query.js:131

mongorestore –drop
connected to: 127.0.0.1
assertion: 13 not authorized on admin to execute command { getParameter: 1, authSchemaVersion: 1 }

]# mongo
MongoDB shell version: 2.6.12
connecting to: test

show dbs;
2017-07-14T03:26:13.984+0000 listDatabases failed:{
“ok” : 0,
“errmsg” : “not authorized on admin to execute command { listDatabases: 1.0 }”,
“code” : 13
} at src/mongo/shell/mongo.js:47

专题

配置文件

mongo v2.6.12开始, 配置文件有2个:

$ ls -l /etc/mongo
mongod.conf  mongos.conf

扩展阅读

    原文作者:jiaxiaolei
    原文地址: https://www.jianshu.com/p/5d409a64ea4e
    本文转自网络文章,转载此文章仅为分享知识,如有侵权,请联系博主进行删除。
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