English 中文(简体)
How is Twitter s MySQL database architecture designed? Try your best [closed]
原标题:

Closed. This question needs to be more focused. It is not currently accepting answers.


Want to improve this question? Update the question so it focuses on one problem only by editing this post.

Closed 8 years ago.

No one knows. And even if you work at Twitter, you probably won t let us know the secret.

So, let us all post our theories on how this communication tool database is designed!

It definitely can t follow the standard replication architecture, right? It s got to do some sharding, partitioning, etc, etc.

Let me know what you think!

最佳回答

Twitter uses in memory database and MySQL is just for backup.

This is a diagram that might explain Twitter s architecture: alt text

问题回答

MySQL is not used for backup as mention in the previous answer but for actually storing the data.

They have developed their own database called FlockDB which uses mySQL as back-end database along with other mechanisms for consistency,indexing etc.

More information about FlockDB and source code here:

https://github.com/twitter/flockdb

But they have optimized their MySQL database schema in a way to perform extremely well with their queries.

More information about the schema here:

http://www.slideshare.net/nkallen/q-con-3770885?from=ss_embed





相关问题
SQL SubQuery getting particular column

I noticed that there were some threads with similar questions, and I did look through them but did not really get a convincing answer. Here s my question: The subquery below returns a Table with 3 ...

please can anyone check this while loop and if condition

<?php $con=mysql_connect("localhost","mts","mts"); if(!con) { die( unable to connect . mysql_error()); } mysql_select_db("mts",$con); /* date_default_timezone_set ("Asia/Calcutta"); $date = ...

php return a specific row from query

Is it possible in php to return a specific row of data from a mysql query? None of the fetch statements that I ve found return a 2 dimensional array to access specific rows. I want to be able to ...

Character Encodings in PHP and MySQL

Our website was developed with a meta tag set to... <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> This works fine for M-dashes and special quotes, etc. However, I ...

Pagination Strategies for Complex (slow) Datasets

What are some of the strategies being used for pagination of data sets that involve complex queries? count(*) takes ~1.5 sec so we don t want to hit the DB for every page view. Currently there are ~...

Averaging a total in mySQL

My table looks like person_id | car_id | miles ------------------------------ 1 | 1 | 100 1 | 2 | 200 2 | 3 | 1000 2 | 4 | 500 I need to ...

热门标签