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README.rdoc
expire.lua
expire.rb

README.rdoc

Auto record expire based on TTL

Implements TTL-based record expiry via a Lua script which is periodically executed by the TC runtime.

  • The calling period is customizable via -extpc flag

  • Data is stored inside a 'table' engine where key 'x' stores the unix timestamp for the expiry date

  • Lua cleanup script is called periodically to scan the database for keys ready to be removed, which are then purged from the DB.

Starting server

# call expire script every 5 seconds
> ttserver -ext expire.lua -extpc expire 5 "casket.tct#idx=x:dec#bnum=2000000"

Executing via Ruby

> ruby expire.rb
> nil
> {"name"=>"bob", "x"=>"1247025691"}