1. Raj Kissu Rajandran Life of A GsoC Student

2. Google Summer of Code

What Is It?

How I Got Involved

The Project:

• BLOBStreaming Support in phpMyAdmin

Mentors:

• Marc Delisle

• Paul McCullagh

3. What Is A BLOB?

Binary Large Object

Commonly used to store files in databases

File types: MP3s, Videos, Photos, etc

Advantages of BLOBs:

• Transactional operations

• Consistent Backups

Disadvantages of BLOBs:

• BLOB columns slow down reading of tables

• Databases become large easily

4. BLOBStreaming

What Is It?

Advantages:

• Avoid dangling references

• Fast backups

• Fast replication

• Better scalability

Requires:

• MySQL, phpMyAdmin

• PBXT, MyBS

5. Goals of BLOBStreaming

Store BLOBs of any size

Stream BLOBs in and out of databases

Open system usable by all storage engines

Standardised client API for applications

6. What Is phpMyAdmin?

Web-based GUI for managing MySQL

Open Source community-driven project

SourceForge.Net Community Choice Awards 2008 Winner:

• Most Likely to Be the Next $1B Acquisition

• Best Tool or Utility for SysAdmins

SourceForge.Net Community Choice Awards 2008 Finalist:

• Best Tool or Utility for Developers

7. What Is PBXT?

Pluggable storage engine (MySQL v5.1.x)

Supports Transactions

ACID Compliance (PBXT v1.0 onwards)

Referential Integrity

Supports BLOBStreaming

Open Source

Developed by PrimeBase Technologies (http://www.primebase.org)

8. What Is MyBS?

Storage Engine

Stores/Streams BLOBs (MySQL v5.1.x)

Built-in Web Server

BLOB Repository

Provides API for storage engines to reference/dereference BLOBs

Open Source

Developed By PrimeBase Technologies

9. BLOBStreaming Architecture Reproduced with permission from Paul McCullagh, (c) 2008 PrimeBase Technologies 10. BLOBStreaming Support in phpMyAdmin

How It Works:

• Plugin Detection

• Supported Databases Detection

• CURL Detection

• Upload to BLOB Repository

• Streaming of BLOBs via BLOB References

• Removal of BLOB References

11. PROJECT DEMONSTRATION 12. Project Limitations

CURL

No uploading to BLOB Repository via FTP

Upload Limitations imposed by PHP:

• memory_limit

• max_execution_time

• upload_max_filesize

• post_max_size

13. Future Goals

Feature Customisation

Support for CURL alternatives (like wput)

Upload to the BLOB repository via FTP

Multipart/form-data handling

14. Resources

phpMyAdmin:

• http://www.phpmyadmin.net

PBXT:

• http://sourceforge.net/projects/pbxt

MyBS:

• http://sourceforge.net/projects/mybs

Project SVN:

• svn://sebastianmendel.de/phpMyAdmin_gsoc2008_bs

PBXT/MyBS Blog:

• http://pbxt.blogspot.com

Project Blog:

• http://code.kissu.org

15. Q & A 16. THANKS FOR LISTENING!