This document discusses Bloomberg's experience moving to a multi-tenant HBase cluster. It provides an overview of HBase features that support multi-tenancy like namespaces, region server groups, storage quotas, and request throttling. It also summarizes Bloomberg's implementation including creation of namespaces, region server groups, and quotas. Performance results showed region server groups improved data locality and throughput. Overall, the speaker concluded HBase's multi-tenancy story is good but could be improved further with enhancements to features like system table availability and memory quotas.