[nijave]

AWS recommends using dynamo and has a Java reference implementation. Afaik GCP doesn't support locks either. Azure supports locks on blob store (their object store service)

[GordonS]

Ah, someone mentioned it in reference to Azure Blob Storage recently, and I had (apparently incorrectly) assumed it was also an S3 feature.

Any reason Azure Blob Storage couldn't be used as a no-setup, managed, cheap way to acquire distributed locks?

[skyde]

azure blob store is literally used as a cheap way to acquire distributed lock today by the azure sdk.

if you look at azure event hub library they use blob as lock to partition the consumer instances at runtime.