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Doubts regarding WebAPI channel based approach to retreive live PI tag data

Question asked by Paurav Joshi Champion on Jun 20, 2016
Latest reply on Jun 23, 2016 by pthivierge

Hello Folks,


I read the document help file regarding channel (/piwebapi/help/topics/channels), and I have some doubts after that:

We have 396 assets, and we want to retrieve 50 tags per asset - resulting in 19800 subscriptions.

  1. Is there any upper limit on # of subscriptions on PI WebAPI server?
  2. Will these # of subscriptions impact PI WebAPI server on either memory or CPU utilization way?
  3. If we implement channel on streamset basis, then will there be any impact as the parent webId has good # of child webIds' to fetch data for?



Paurav Joshi