O P E R A T I N G G L O B A L A N Y C A S T C D N ’ S

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THE GEOGRAPHY OF TWEETS

Twitter users are mobile

D E L I V E R I N G C O N T E N T F A R A N D W I D E

VISIBILITY CHALLENGES IN OPS

  Internal service monitoring great   Rich client side metrics

  What about the CDN edge?

perspective matters

TROUBLEHSOOTING BEFORE THOUSANDEYES

  user complaints + provider tickets   alternate monitoring services had small footprint, bad for anycast

hurry up and wait

WHERE’S THE DATA?

  HTTP headers are your friend   Traceroute’s from 100 sources, visualized together

  Is anycast tuned correctly?

Fix it faster!

WHAT’S NORMAL?

WHAT?

WELL, CRAP Why is Moscow going through Tokyo???

ADDITIONAL EXAMPLES

  “The internet isn’t working” won’t cut it   Which cache served up the request?

Methods of reducing MTTR

ADDITIONAL EXAMPLES Methods of reducing MTTR

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T H A N K S