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Mysql architecture¶meters
- 1. MYSQL Architecture and Parameters
Philip Zhong
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- 9. Internal Data Dictionary
Undo
Insert Buffer
Doublewrite Buffer
MySQL Replication Info
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- 18. • READ UNCOMMITED - Rarely used, can use if you are fine
with dirty reads but performance improvement is limited
• READ COMMITED – Results of all committed transactions
become visible to the next statement. May be more efficient
than higher isolation levels. Allows old versions to be purged
faster
• REPEATABLE READ – Default. Reads within transactions
are fully repeatable, no phantom rows
• SERIALIZABLE - Makes all selects locking selects, avoid
when possible
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- 21. Thank you.
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