multi-tenant | 易学教程

Should I use a single or multiple database setup for a multi-client application?

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I am working on a PHP application that intends to ease company workflow and project management, let's say something like Basecamp and GoPlan . I am not sure on what the best approach is, database-wise. Should I use a single database and add client-specific columns to each of the tables, or should I create a database for each new client? An important factor is automation: I want it to be dead simple to create a new client (and perhaps opening the possibility to signing up for yourself). Possible cons I can think of using one database: Lack of extensibility Security problems (although bugs

optimal architecture for multitenant application on django

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I've been brooding over the right/optimal way to create a multitenancy application based on Django. Some explanation: Application can be used by several tenants (tenant1, tenant2, ...,). All tenant-individual data has to be secured against access of other tenants (and their users). Optionally tenants can create additional custom-fields for application-objects. Of course, underlying hardware limits number of tenants on one "system". 1) Separating each tenant by e.g. sub-domain and using tenant-specific databases in the underlying layer 2) Using some tenant-ID in the model to separate the tenant

limits of number of collections in databases

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问题 Can anyone say are there any practical limits for the number of collections in mongodb? They write here https://docs.mongodb.com/manual/core/data-model-operations/#large-number-of-collections: Generally, having a large number of collections has no significant performance penalty, and results in very good performance. But for some reason mongodb set limit 24000 for the number of namespaces in the database, it looks like it can be increased, but I wonder why it has some the limit in default

Connecting to database for Multi-Tenant application?

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问题 I am in the process of creating a Multi-Tenant asp.net application. I am deciding between separate MSSQL databases or schemas. However, I cannot find any information on how I can change the database (ideally) or user account dynamically, depending on which one the user should connect to. I will most likely have a Base Table which defines which database the user should connect to. Doing this using Linq to SQL is easy but I am not using Linq everywhere because the tables are quite dynamic and

Multiple Data Sources with same entity and repo

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问题 Currently working on a project where my Spring Boot project needs to leverage multiple data sources or schema in the same DB server. I have found several tutorials that teach multiple data source configuration in spring boot where entity foo exists in DataSource A and bar exists in DataSource B namely below., https://scattercode.co.uk/2016/01/05/multiple-databases-with-spring-boot- and-spring-data-jpa/ https://scattercode.co.uk/2013/11/18/spring-data-multiple-databases/ https://medium.com/

Setting up a MultiTenantConnectionProvider using Hibernate 4.2 and Spring 3.1.1

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问题 I am currently trying to set up Hibernate for multi tenancy using the seperate Schema aproach. After working on it for about 2 days now and browsing nearly every source I could find via Google I am starting to get quite frustrated. Basicaly I am trying to follow the guide provided in the Hibernate devguide http://docs.jboss.org/hibernate/orm/4.1/devguide/en-US/html_single/#d5e4691 But unfortunately I am not able to find the ConnectionProviderUtils to build the ConnectionProvider. Currently I

How to design a multi tenant mysql database

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Let us say I need to design a database which will host data for multiple companies. Now for security and admin purposes I need to make sure that the data for different companies is properly isolated but I also do not want to start 10 mysql processes for hosting the data for 10 companies on 10 different servers. What are the best ways to do this with the mysql database. Mike Sherrill 'Cat Recall' There are several approaches to multi-tenant databases. For discussion, they're usually broken into three categories. One database per tenant. Shared database, one schema per tenant. Shared database,

What is the recommended approach towards multi-tenant databases in MongoDB?

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I'm thinking of creating a multi-tenant app using MongoDB. I don't have any guesses in terms of how many tenants I'd have yet, but I would like to be able to scale into the thousands. I can think of three strategies: All tenants in the same collection, using tenant-specific fields for security 1 Collection per tenant in a single shared DB 1 Database per tenant The voice in my head is suggesting that I go with option 2. Thoughts and implications, anyone? Ruslan Kiskinov I have the same problem to solve and also considering variants. As I have years of experience creating SaaS multi-tenant

Overriding the bean defined in parent context in a child context

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问题 Our app has a requirement to support multi-tenancy. Each of the boarded customer might potentially override 1 or more beans or some properties of a bean defined at the core platform level (common code/definitions). I am wondering what is the best way to handle this. 回答1: Spring allows you to redefine the same bean name multiple times, and takes the last bean definition processed for a given name to be the one that wins. So for example, your could have an XML file defining your core beans, and

dynamically set database based on request in django

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问题 I am writing a multi-tenant application with python-django. I want to set database connection based on each request.I thought i could write a middleware where we set the database to be used for that particular database. import re from django.db import connections class SetTenantDatabase(object): def process_request(self, request): pattern = re.compile("\\b(http://|https://|www.|.com|8000|:|//)\\W\\d+", re.I) words = request.get_host() db_name = [pattern.sub("", words)][0].split('.')[0]