After posting a 4MB JSON document to a bucket, I can no longer browse the document list from the administrative console. The API is still responsive though, so I can delete it from my application and then everything returns to normal. According to the documentation the maximum size is 20MB, so a document 1/5 that size shouldn’t be a problem.
I’ve tried this on 2 test clusters running Server 3.0.3 on Window with the same results. Are there any known issues with large-ish documents?