Is there any limit on the number of channel tags of a document.

[john....@gmail.com]

I am referring to http://developer.couchbase.com/documentation/mobile/1.1.0/develop/guides/sync-gateway/channels/intro/index.html

Lets say I have 1 to n million users. Each user has his own channel.  Now is it feasible that a documents could have for example 1000000 channel tags?

Many Greetings

John

[Jens Alfke]

On Oct 28, 2015, at 11:29 PM, john....@gmail.com wrote:

Lets say I have 1 to n million users. Each user has his own channel.  Now is it feasible that a documents could have for example 1000000 channel tags?

The only hard limit I can think of is that a Couchbase Server doc can’t exceed 20MB, and SG stores a list of a document’s channels in the document as invisible metadata. So a few million channels would start to overflow this.

There are likely to be performance problems with huge numbers of channels on a doc, though, but they’re hard to characterize because they depend on the exact usage scenario.

It would probably be better to define a channel for the document, then give the subscribed users access to that channel.

—Jens

[john....@gmail.com]

yes that's a good idea. And there is no limit on the number of channels. Anyway in my use-case the max would be something around 50.000 cannels