Toward a Versatile and Scalable Metadata Distribution Framework for Object Storage (Research Poster).

The use of object storage in the HPC world becomes a common case as it enables to overcome some POSIX limitations in scalability and performance. Indeed, object stores use a flat namespace, avoiding hierarchy in access requests and the cost of maintaining dependencies between multiple entries. Object stores also differentiate data flow from metadata flow, providing better concurrency and throughput. They can store trillions of objects and each object has its own customized metadata attributes so these metadata can be richer than POSIX attributes.