Maximum size of streams

EventStoreDB
#1

Hi

What is the maximum size of a stream in evenstore? Given small event sizes. I just whatched the video 'A deep look into the Event store' where Greg mentions that streams containing more than 2 billion events are going to be a problem. Is it possible to distribute a stream across multiple machines?

Thanks.

#2

It’s a limit so no you can however use multiple streams

#3

Thank you for the quick reply. Can you expand the answer a little bit? We are in the process of evaluating event store for our infrastructure. We are looking at storing lots of events produced over many years..

#4

I’ve noticed the stream pointer is an int while the global positions are long, so I’m guessing this is by design?

/Peter

#5

Yes. It is intended to have thousands or millions of streams not one stream for the system. As an example in a bank you would have a stream/account not one stream for the entire bank. In many systems the creation of a stream is an expensive operation in event store it is essentially free.

Cheers,

Greg

#6

Is it still the limit now ?
Thanks.

#7

Since version 4.1 (I think) stream version is a long so supports 2^63 -1 events. There are other limits you’ll reach before that.