How to handle or management Facebook data to describe in these slide.

1. DATABASE SYSTEM OF

2. What is FACEBOOK?
Facebook is a social networking site that makes
it easy for you to connect and share with your
family and friends online.

3. DID YOU KNOW?
Facebook handles upto 500 petabyte of data per day.
10 billion messages/day.
600 million photos/day.

4. Data Execute response
Query response times: 4ms reads, 5ms writes.
 Rows read per second: 450M peak
Network bytes per second: 38GB peak
 Queries per second: 13M peak
 Rows changed per second: 3.5M peak

5. Which DBMS does Facebook use for saving
posts, comments and likes?
Facebook uses MySQL for the majority of the data
you would consider "Facebook data" like posts,
comments etc.

6. SO, do facebook use only MySQL?
The answer is:
‘NO’

7. So, what are the other DBMS Facebook uses?
Hbase : for Graph search and messages
Cassandra : for inbox search
Haystack : for storing photos
Memcached : for an in-memory key/value store
Scribe : for logging

8. Growing Data Management
Hadoop: An open source Implementation of Google's
MapReduce
Hive: A system for querying datasets stored in Hadoop files
Cassandra: which provides a BigTable-like system for storing
massive amounts of structured data.

9. NoSQL
MySQL, MariaDB (open-source fork of MySQL) and
PostgreSQL are SQL databases
MongoDB is an example of a NoSQL database

10. Small Data Challenges
Facebook’s News Feed requires 1000s of objects to render
and it is personalized for everyone on the service
TAO and Memcache are the primary systems that handle
caching our small data workload.

11. Big Data Challenges
ODS stores 2 billion time series of counters
 Scuba is Facebook’s fast slice-and-dice data store
 Hive is Facebook’s data warehouse with 300 PB data in 8 lakhs
tables.

12. What type of server does Facebook use?
For PHP -> HipHop for PHP.
Linux operating system -> Apache HTTP Servers.

13. Conclusion……..
So, from this discussion we know, how to handle
database management system(DBMS) of
Facebook.

14. THANK YOU 
ANY QUESTIONS??