This document discusses different database technologies including MySQL, NoSQL databases like MongoDB, and how to perform online schema changes with MySQL. It provides several links to resources about using MySQL at scale, including using MessagePack and Snappy for serialization, and different tools for performing online schema changes without taking the database offline.

1. a.k.a.

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3. • MySQL
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4. • @tasukuchan
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5. • Senna/groonga
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7. • MySQL
… MySQL …

8. • NoSQL
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• MySQL
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MySQL

9. • MySQL
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• MongoDB

14. • Node.js Redis
^^
http://jigokuno.com/?cid=71

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• MongoDB etc.
– B to C
– B to B

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23. http://jigokuno.com/?cid=36

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27. • id BIGINT
• JSON XML value
• natural_key/created/updated
• created/updated TIMESTAMP

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JOIN
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SQL

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(Friendfeed )
• ) RDB
http://dev.ariel-networks.com/Members/inoue/schemaless/

31. • SQL
by

32. • MySQL ALTER TABLE
– MySQL 5.1 Fast index create
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33. • openarkkit
http://code.google.com/p/openarkkit/
– MySQL
• oak-online-alter-table
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34. • OnlineSchemaChange.php by Facebook
http://www.facebook.com/notes/mysql-at-facebook/online-schema-
change-for-mysql/430801045932
– oak-online-alter-table

35. • MessagePack + Snappy
http://dayafterneet.blogspot.com/2011/05/google-
snappy-twitter-json.html

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