Alec,
You can use something like HyperLogLog or Bloomfilters to do Unique and/or Distinct counting. Just create a bolt that does that. Nima From: Sa Li [mailto:[email protected]] Sent: Wednesday, August 20, 2014 2:45 PM To: [email protected] Subject: distinct counting Hi, all I know storm does good job on counting and other aggregate jobs, I wonder if anyone ever did distinct counting in storm, and how would you set the time sliding window? thanks Alec
