

 
  acme@astray.com




                    ::


    
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    
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
    
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    
    


    
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    
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    
    ?
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?
    
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    
    
    ...

    
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    
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
    ::
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    
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    
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    
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_
    
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    
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
    
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    ::
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    
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
    
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    
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    
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
    
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    
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    
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    
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
    
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    
    
?

    
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    

    
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    
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    
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    
...

    
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    
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    
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    
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    
...

    
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    
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    #
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    ...

    
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    
    
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    ...

    
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    
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    
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
    
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    

    =::
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    >=>
    ':';
    >'''...

    
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    
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    
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    

    _
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    =_;
    =>;
    ...

    '
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    
●

    '
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    '
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    
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    
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    
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   ...

    
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    
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    :
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    :
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    ...

    >':';
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    
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    
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
    
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    
    
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    
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
    
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    
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    
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?
    
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    
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    
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    ...
?
    
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    
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    
    
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
    
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    
    _
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    :...
?
    '
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    
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    
    ...

    
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    
    _
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
    
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    
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Scaling with memcached

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memcached is a high-performance, distributed memory object caching system used by LiveJournal, Facebook, Bloglines and others. Find out how memcached works, how to it set up and how you can scale your website. Presented at YAPC::Europe 2007 by Leon Brocard.

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  • Dear Leon,

    I'd be curious to see an apples to oranges comparison between Danga's open source Memcached and enhanced versions like Gear6.

    Any chance you've got something like that in your bag of presentations?
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  • Maybe I wasn't clear enough: having pointed out earlier that cache invalidation is a bad idea, I say disable caching for testing. However, if you have complicated cache invalidation then clearly you'd want to test it.
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  • Hi Léon,
    Why disable? Disabling memcached when testing might as well bite you in the ass once in production. Let's say for instance that the cache invalidation logic is wrong in tested code, the test might fail because it will serve some data from the cache instead of the store. *which is good*.
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Scaling with memcached

  1. 1.    acme@astray.com ::
  2. 2. 
  3. 3.   ●  ●
  4. 4.   ●  
  5. 5. 
  6. 6.   ●  ●  ? ●
  7. 7. ?  ●    ●
  8. 8.   ●  ●
  9. 9.  :: ●  ●  ●  ●
  10. 10. _  ●  ●
  11. 11.   ● :: ●  ●
  12. 12.   ●  ●  ●
  13. 13.   ●  ●  ●  ●
  14. 14.   ●  
  15. 15. ?
  16. 16.   ● 
  17. 17.   ●  ●  ●   ●
  18. 18.   ●  ●  ●  ●  ● : ●
  19. 19.   ●  ● # ● 
  20. 20.   ●   ●  ●
  21. 21.   ●  ●  ●
  22. 22.   ● 
  23. 23.  =:: ● >=> ':'; >''''; ● =>''; ●
  24. 24.   ●  ●  ● 
  25. 25.  _ ● =_; =>; ; = >__; >“:” *; ; 
  26. 26.  ' ●  ●
  27. 27.  ' ● ' ●  ●  ●  ●  ●
  28. 28.   ●  ● : ● : ●  ●
  29. 29.  >':'; ●  ●  ●
  30. 30.   ●   ●  ●
  31. 31.   ●  ●  ●
  32. 32. ?  ●  ●  ●  ● 
  33. 33. ?  ●  ●   ●
  34. 34.   ●  _ ● : ●
  35. 35. ? ' ●  ●   ●
  36. 36.   ●  _ ●
  37. 37.   ●      _ _ _ _  _ _ _ _ _ _ _ _ _ _ 
  38. 38.  _ ● _ _ _ =__ ●  ●
  39. 39.  : ● : ●
  40. 40.   ●
  41. 41.   ●
  42. 42.   ●  –  ●  –  ●  –
  43. 43.   ●   : ● :: ●
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