Mysql architecture&parameters

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Mysql architecture&parameters

  1. 1. MYSQL Architecture and ParametersPhilip Zhong© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1
  2. 2. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 2
  3. 3. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3
  4. 4. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 4
  5. 5. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 5
  6. 6. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 6
  7. 7. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 7
  8. 8. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 8
  9. 9.  Internal Data Dictionary Undo Insert Buffer Doublewrite Buffer MySQL Replication Info© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 9
  10. 10. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 10
  11. 11. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 11
  12. 12. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 12
  13. 13. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 13
  14. 14. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 14
  15. 15. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 15
  16. 16. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 16
  17. 17. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 17
  18. 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© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 18
  19. 19. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 19
  20. 20. My_temp.txt© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 20
  21. 21. Thank you.© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 21

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