MongoDB

I. MongoDB configuration parameter Description:[Email protected] tmp]# cat/etc/mongod.conf#以守护进程的方式运行Fork=true#设置db的路径dbpath=/usr/local/mongodb/data/db#设置日志路径Logpath=/usr/local/mongodb/data/log/mongod.log#logappend: Write the log mode: set to True

Mongodb Shard DeploymentConfigure a MongoDB cluster, such as a MongoDB cluster with 3 shard configured on 3 servers:Architecture:1. Each piece of data requires 3 Mongod server,2 primary from the data node, 1 is the quorum node (arbiter), and no data

First, the relationshipMongoDB relationships represent the logical interconnectedness of multiple documents. Links can be established between documents through embedding and referencing. The relationship in MongoDB can be: 1 pairs of more than 1,

The document stored in MongoDB must have a "_id" key. The value of this key can be any type, and the default is a Objectid object.ObjectId is a 12-byte BSON type data that has the following format: The first 4 bytes represent a timestamp

I. Use of the databaseShow all database commands$ . / 3.0. 6 to : Test> show dbslocal 0. 078GBtest 0. 078GB>Displays the current database object$ . / 3.0. 6 to: Test> dbtest>Switch database> Use to db local> dblocal>Connecting to a

Model Data for Atomic Operations PatternIn MongoDB, write operations, eg. Db.collection.update (), Db.collection.findAndModify (), Db.collection.remove (), is atomic on the level of a single docume Nt. For fields The must is updated together,

Mongodb LearningInstallation-level configuration Windows random boot1. Download MongoDB and unzip to D:\database\mongodb\mongo2. Configure environment Variables1. new environment variable mongo_home=d:\database\mongodb\mongo\bin2. Add the path

The first thing to look at is GitHub's C + + driver projectHttps://github.com/mongodb/mongo-cxx-driverHere is a brief introduction, the current C + + driver is divided into three versions, placed in different branch Branch

According to the website's prompt content, the default configuration file content is　　systemlog:verbosity:0 quiet:false# traceallexceptions:Boolean>syslogfacility:user Path: "/data/mongodb/log" Logappend:false logrotate:rename destination:file Times

First, install the MONGODB Linux environment installationTake the Ubuntu 14.04 I use as an example1. Installing MongoDBApt-get Install MongoDB2. Creating a database directory for MongoDBMkdir-p/data/db3. View MongoDB Run statusMongodFound an error

I study according to this article: http://blog.jobbole.com/72610/will be constantly updated content is divided into four main modules: MongoDB deployment in various ways Common use [Work no need to learn, limited energy] Performance

I. MONGODB installation and start-upWidndows and Linux are basically the same1. Download the database,Linux:mongodb-linux-x86_64-ubuntu1404-3.0.3.tgz2. Unzip the file and place it in the appropriate locationtar-vxf mongodb-linux-x86_64-ubuntu1404-3

Heat up your hands for the next job.Read a book before, understand, but it seems that three or four years, and forget. ：（Reference URL:Http://www.centoscn.com/image-text/install/2014/1124/4171.htmlEnvironment:System hardware: VMware vsphere (cpu:2*4

In this article we look at MongoDB as an administrator, and as an administrator, there are 4 main areas that we often come into contact with:1. Installation deployment2. Status monitoring3. Security Certifications4. Backup and Recovery,Here we will

Installing Mogodb Script 1.0001#!/bin/bashUseradd mongod-s/sbin/nologin-mTarfile= ' Ls-l. |grep Mongodb-linux|awk ' {print $9} 'TAR-ZXVF $tarfile | | Exit 1MV $tarfile BakmogMV Mongodb* MongoDB#将文件拷贝到目的安装路径mv./mongodb/usr/share/MV Bakmog

Learn a little bit every day, progress a little, record a little, share a little, summarize a little.First, the basic application1. Common commandsShow DBS Display Database listUse dbname into the dbname database, case sensitive, no this database

MongoDB Data ArchitectureUpgrade resolution. PlanDiscover problemsA sudden influx of application server users, creating a slow server responseChecking the server, I found that each reaction was very slow, to 30opsInspection process. Discovery of

mongo-cxx-driver-legacy-1.0.4SCons--extrapath=/usr/local/boost158/--prefix=/usr/local/mongodb30--ssl=ssl--use-sasl-client=USE-SASL-CLIENT.Boost_1_58_0.tar./bootstrap.sh--prefix=/usr/local/boost158./B2 InstallMongo-cxx-pool-master (requires-std=c++11

Deploying Replication SetsA replica set consisting of three nodes provides sufficient redundancy for network failure or other system failures. The replica set also has the ability to have sufficient distributed read operations. The replica set

MongoDB Data BackupIn MongoDB we use the Mongodump command to back up MongoDB data. The command can export all data to the specified directory.The Mongodump command allows you to specify the server to which the exported data can be dumped by