Badger: Can badger open database in readonly mode without locking?

[vrealzhou]

Is it possible to add option to open database in readonly mode which no need to lock the database? It could share the database between different read only processes?

[deepakjois]

I don’t believe this is possible without a major design change, that will affect multiple layers in the code. So I am not sure if this is something we will look into actively.

[ghost]

I just did a blocking test and seems badger does not block readers and writers so you could utilize multiple readers and to avoid writes, add api layer on top of badger.

[manishrjain]

This can be done -- would essentially need to avoid doing the lock on DB, and modify the scope of APIs a bit. I don't know how much demand is there for this feature. If we get 5-10 thumbs-up on the top post, we can build this.

[manishrjain]

The PR which adds this functionality is merged.