标签：restore horizon from tab family default 127.0.0.1 sharding list
安装MongoDB的方法有很多种，可以源代码安装，在Centos也可以用yum源安装的方法。
运行yum命令查看MongoDB的包信息（正常是没有信息提示的，我这里已经按安装好了）
[root@localhost~]# yum info mongodb-org
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Installed Packages
Name : mongodb-org
Arch : x86_64
Version : 3.4.10
Release : 1.el6
Size : 0.0
Repo : installed
From repo : mongodb-org-3.4
Summary : MongoDB open source document-oriented database system (metapackage)
URL : http://www.mongodb.org
License : AGPL 3.0
Description : MongoDB is built for scalability, performance and high availability, scaling from single server deployments to large, complex multi-site architectures. By leveraging in-memory
: computing, MongoDB provides high performance for both reads and writes. MongoDB’s native replication and automated failover enable enterprise-grade reliability and operational
: flexibility.
:
: MongoDB is an open-source database used by companies of all sizes, across all industries and for a wide variety of applications. It is an agile database that allows schemas to
: change quickly as applications evolve, while still providing the functionality developers expect from traditional databases, such as secondary indexes, a full query language
: and strict consistency.
:
: MongoDB has a rich client ecosystem including hadoop integration, officially supported drivers for 10 programming languages and environments, as well as 40 drivers supported
: by the user community.
:
: MongoDB features:
: * JSON Data Model with Dynamic Schemas
: * Auto-Sharding for Horizontal Scalability
: * Built-In Replication for High Availability
: * Rich Secondary Indexes, including geospatial
: * TTL indexes
: * Text Search
: * Aggregation Framework & Native MapReduce
:
: This metapackage will install the mongo shell, import/export tools, other client utilities, server software, default configuration, and init.d scripts.
（如果没有提示相关匹配的信息，） 说明你的centos系统中的yum源不包含MongoDB的相关资源，
vim /etc/yum.repos.d/mongodb-3.4.repo
输入下面的语句：
[mongodb-org-3.4]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.4/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-3.2.asc
yum install -y mongodb-org
service mongod start
以后有更新了执行yum update mongodb-org 即可。
# mongod.conf #where to log logpath=/data/logs/mongodb/mongod.log logappend=true #以追加方式写入日志 # fork and run in background fork=true #port=27017 dbpath=/data/mongo #数据库文件保存位置 # location of pidfile pidfilepath=/var/run/mongodb/mongod.pid # Listen to local interface only. Comment out to listen on all interfaces. bind_ip=10.81.85.229 # Disables write-ahead journaling # nojournal=true #启用定期记录CPU利用率和 I/O 等待 # Enables periodic logging of CPU utilization and I/O wait #cpu=true # 是否以安全认证方式运行，默认是不认证的非安全方式 # Turn on/off security. Off is currently the default #noauth=true auth=true # Verbose logging output. #verbose=true # Inspect all client data for validity on receipt (useful for # developing drivers) #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 # Set oplogging level where n is # 0=off (default) # 1=W # 2=R # 3=both # 7=W+some reads #diaglog=0 # Ignore query hints #nohints=true # Enable the HTTP interface (Defaults to port 28017). #httpinterface=true # Turns off server-side scripting. This will result in greatly limited # functionality #noscripting=true # Turns off table scans. Any query that would do a table scan fails. #notablescan=true # Disable data file preallocation. #noprealloc=true # Specify .ns file size for new databases. # nssize=<size> # Replication Options # in replicated mongo databases, specify the replica set name here #replSet=setname # maximum size in megabytes for replication operation log #oplogSize=1024 # path to a key file storing authentication info for connections # between replica set members #keyFile=/path/to/keyfile
> use admin
> db.createUser({user:"root",pwd:"123456",roles:[{role:"root",db:"admin"}]})
mongo 127.0.0.1:27017/admin -u root -p
> db.comlogs.find().count()
326466
<?php
$mongo = new Mongo("mongodb://root:123456@127.0.0.1:27017/admin"); //认证用户，这里的数据库，只启认证作用
$db = $mongo->selectDB(‘admin‘); //选取数据库
$users= $db->selectCollection("test");
$cursor = $users->find();
foreach ($cursor as $id => $value) {
echo "$id: "; print_r($value); echo "<br>";
}
$document = array(
"title" => "MongoDB",
"description" => "database",
"likes" => 100,
"url" => "http://www.cnblogs.com/chenpingzhao"
);
$users->insert($document);
内置角色
数据库用户角色：read、readWrite;
数据库管理角色：dbAdmin、dbOwner、userAdmin；
集群管理角色：clusterAdmin、clusterManager、clusterMonitor、hostManager；
备份恢复角色：backup、restore；
所有数据库角色：readAnyDatabase、readWriteAnyDatabase、userAdminAnyDatabase、dbAdminAnyDatabase
超级用户角色：root， 这里还有几个角色间接或直接提供了系统超级用户的访问（dbOwner 、userAdmin、userAdminAnyDatabase）
内部角色：__system
具体角色
read：允许用户读取指定数据库
readWrite：允许用户读写指定数据库
dbAdmin：允许用户在指定数据库中执行管理函数，如索引创建、删除，查看统计或访问system.profile
userAdmin：允许用户向system.users集合写入，可以找指定数据库里创建、删除和管理用户
clusterAdmin：只在admin数据库中可用，赋予用户所有分片和复制集相关函数的管理权限。
readAnyDatabase：只在admin数据库中可用，赋予用户所有数据库的读权限
readWriteAnyDatabase：只在admin数据库中可用，赋予用户所有数据库的读写权限
userAdminAnyDatabase：只在admin数据库中可用，赋予用户所有数据库的userAdmin权限
dbAdminAnyDatabase：只在admin数据库中可用，赋予用户所有数据库的dbAdmin权限。
root：只在admin数据库中可用。超级账号，超级权限
标签：restore horizon from tab family default 127.0.0.1 sharding list
原文地址：http://www.cnblogs.com/chenpingzhao/p/7906360.html
