mongodb migration

1. Open Package Manager console pm> enable-migrations–enableautomaticmigration: $true2. Migrations folder will be generated in project engineering files3. Locate the constructor in the database context, such as Public Base ("name=studentdb") {database.setinitializer (New Migratedatabasetolatestversion" Studentdb"));}4. Locate the Configuration.cs in the Migrations folder, enter automaticmigrationdatalossallowed in the constructor = True as Public Configuration () { tru

Note: before configuring migration, make sure that the openstack platform is ready for use. This is to test the KVM platform. 1. machine: Node1 is the control node 10.214.0.57 Node2 is the computing node 10.214.0.58 Node3 is the computing node 10.214.0.60 In the experiment phase, to avoid unnecessary troubles, disable the firewall of each node. service ufw stop View Firewall Status service ufw status ufw stop/waiting Make sure that the nodes can

Salmon Migration Model Mr. Xiaohui from the Software Institute complained to a Chao that the software engineering course seemed easy and difficult to teach. Xiao Hui said: I used to give lectures based on the classic waterfall model. I thought it would be a great building, but the actual situation is as follows: Demand Analysis: students do not know what the enterprise needs. They go to school and go to bed. Design phase: the students drew a lot of

This article describes Oracle cross-platform migration, such as migrating data from Oracle to other types of databases, but retaining the original structure. This reduces the workload of DBAs. I hope this article will help you better understand Oracle cross-platform migration. 1. Export related information in the original database: expdpsystem/sywg1234directory=testdumpfile=test.dumplogfile=test.log

This time in the rush to some new projects, we build stations are generally in the local server set up, testing almost to upload to the internet, so the spider is also relatively friendly, or changed to change too big for the search engine first impression is very bad. However, due to the local environment and server environment there are some differences, some configuration to remember to modify Oh! Take Dedecms as an example, using FTP to upload locally built files to the site, re-generated th

Project migration from MYSQL to MARIADB tutorial, mysql migration mariadb Prepare the database (MySQL). If MySQL already exists, ignore it. build MySQL table; Connect to MySQL; mysql -u root -p Create a data table; mysql> create database demo;mysql> use demo;mysql> create table pet(name varchar(30), owner varchar(30), species varchar(20), sex char(1)); Add data table content; mysql> insert into pet values('

Django database migration and django migration We have compiled the code for the blog database model, but it is only Python code. Django has not translated it into a database language, therefore, these database tables are not actually created in the database. In order for Django to complete the translation and create these database tables, we once again asked my project management assistant manage. py.Activ

1. File path: advanced/console/migrations/m130524_201442_init.php 2, add the point: Increase the constraint "username" "Email" Authentication uniqueness: Original code: Supplemental Code: "Yii2.0.4" Supplement to database migration migration in advanced templates

I. Environment Information 1) master database (Single Instance) host platform: AIX6.1 database version: 11.2.0.3 (psu5) 2) backup database (crs deployed) host platform: AIX6.1 database version: 11.2.0.3 (psu5) 2: Background I. Environment Information 1) master database (Single Instance) host platform: AIX6.1 database version: 11.2.0.3 (psu5) 2) backup database (crs deployed) host platform: AIX6.1 database version: 11.2.0.3 (psu5) 2: Background I. Environment Information 1) master database (Si

preemption, will do a pre-existing AD connection verification, to determine the connection can not be used to preempt, so there will be error, do not worry. 650) this.width=650; "title=" clip_image072 "style=" border-top:0px; border-right:0px; Background-image:none; border-bottom:0px; padding-top:0px; padding-left:0px; border-left:0px; padding-right:0px "border=" 0 "alt=" clip_image072 "src=" Http://s3.51cto.com/wyfs02/M01/71/07/wKioL1XEKvjhFqbTAAGyC _eatky676.jpg "" 557 "height="/> after five

Cross-database migration of wordpress databases and cross-database migration of wordpress Databases Background: When Wordpress is installed, the database is incorrectly specified, causing data on the website to be stored in the mysql system library. Mysql> show tables from mysql; + --------------------------- + | Tables_in_mysql + --------------------------- + | Columns_priv | Db | Event | Func | General_lo

, adding fields is simply a nightmare.highly Available , NoSQL can easily implement a highly available architecture without compromising performance. For example, MongoDB can quickly configure a highly available configuration with MONGOs, MONGO shards.In a NoSQL database, most queries are the way key-value pairs (key, value) are. MongoDB is a product between relational and non-relational databases, most lik

Preface System migration refers to moving the operating system and applications on the source host to the target host and running properly on the target host. In the era when there is no virtual machine, the migration between physical machines relies on system backup and recovery technologies. Back up the operating system and application status on the source host in real time, connect the storage media to t

Before we introduced the graphical interface of the simple operation of the host migration, if in the command line, such as the core mode can only use the command to migrate! The environment is the same as last time, but this time it's going to turn, migrating from DC2 to DC1 Environment: DC1:WIN08DC1 DC2:WIN08DC2 ip:192.168.1.2 ip:192.168.1.3 Subnet mask: 255.255.255.0 subnet Mask: 255.255.255.0 Gateway: 192.168.1.1 Gateway: 192.168.1.1 dns:19

With the rapid development of technology, day after day passed, the old server finally to the retirement of the day This means migrating old server data to a new server, where one of the key projects migrates the host role The new server needs to be promoted to an additional domain controller prior to migration http://wenxiong.blog.51cto.com/405708/1120831 After the upgrade, the host role will be migrated! The knowledge of five roles can be refer

This article from: HTTP://WWW.OPEN-OPEN.COM/LIB/VIEW/OPEN1427078982824.HTML#_LABEL3For more information, see official website: http://docs.mongodb.org/manual/release-notes/3.0/Reference article:Test: http://www.mongoing.com/archives/862Http://www.mongoing.com/benchmark_3_0Configuration: Http://www.mongoing.com/config_3_0Learning: http://www.mongoing.com/Migration: Https://github.com/xbsura/mongo-migrateThe introduction was officially released on March

[MongoDB] mongodb sharded cluster (iii) on windows platform, mongodb Cluster In the previous two blogs, we elaborated on the working principle and building process of the sharded cluster. In this blog, we will analyze the testing results of the sharded cluster; First, check the status of the sharded cluster. We can see that replica set A and replica Set B are nor

1 PrefaceThe first commitment: for users migrating from the Windows system, the "Linux system can be plagued by the system files and user files to the C-drive and the D-disk " problem can also be satisfactorily resolved.The previous article had a rough introduction to the Linux file system, but what is the use of the file system structure after understanding it? This section will focus on the field application of Linux file system-related knowledge in the context of "User-oriented data backup an

Reader (Read) Writer (write) RDBMS-relational database Mysql √ √ Oracle √ √ Sql server √ √ Postgresql √ √ Da Meng √ √ Data storage of Aliyun warehouse ODPs √ √ ADS √ Oss √ √ OCS √ √ NoSQL data storage Ots √ √ Hbase0.94

This paper describes the method of yii2.0 database migration. Share to everyone for your reference, specific as follows: Create a migration Use the following command to create a new migration: Yii migrate/create The required parameter name functions as a brief description of the new migration. For examp