Is it guaranteed that UUIDs assigned to bitbucket resources are not reused even after the resources are removed?

As mentioned in the documentation below, UUIDs are assigned to some kinds of Bitbucket resources, such as users, teams, and repositories.

I'd like to know if UUIDs assigned to resources are not reused even after the resources are removed just in case.

FYI, in the case of GitHub, each resource has a numeric ID and it is never reused after the resource is removed.
So I am expecting Bitbucket to do the same.

Thanks in advance.

1 answer

1 accepted

Hi @Shinya Kawaguchi,

Yes, Bitbucket Cloud's UUIDs are unique and will not be recycled. You can safely assume that a UUID for a repo is unique to it even though repos get deleted.

P.S. Technically, there is a exceedingly small possibility of a UUID showing up again, but the odds are so minuscule that you can safely ignore that possibility. Bitbucket Cloud uses Version 4 UUIDs, which according to this wikipedia calculation is many order of magnitudes less likely to collide than the chances of a person getting hit by a meteorite in a given year. To quote from that section "...only after generating 1 billion UUIDs every second for the next 100 years, the probability of creating just one duplicate would be about 50%."

Thanks a lot @Abhin Chhabra for your prompt response. I was able to have much confidence in my implementation.

Suggest an answer

Log in or Sign up to answer
Atlassian Community Anniversary

Happy Anniversary, Atlassian Community!

This community is celebrating its one-year anniversary and Atlassian co-founder Mike Cannon-Brookes has all the feels.

Read more
Community showcase
Piotr Plewa
Published Dec 27, 2017 in Bitbucket

Recipe: Deploying AWS Lambda functions with Bitbucket Pipelines

Bitbucket Pipelines helps me manage and automate a number of serverless deployments to AWS Lambda and this is how I do it. I'm building Node.js Lambda functions using node-lambda&nbsp...

2,008 views 1 5
Read article

Atlassian User Groups

Connect with like-minded Atlassian users at free events near you!

Find a group

Connect with like-minded Atlassian users at free events near you!

Find my local user group

Unfortunately there are no AUG chapters near you at the moment.

Start an AUG

You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs

Groups near you