Microsoft Technology Licensing, LLC

Chandru Ramakrishnan

Craig Allen Harry

Mario A Rodriguez

Tan Phan

Jim Presto

Embodiments relate to a process for identifying data leakage in a data storage system. A table is created with multiple units. Each unit in the table has a unique identifier as a leading key in a schema. Two partitions are set in the table, and one of the partitions is set as unavailable. One or more queries are run on the table. Any queries that attempt to access the unavailable partition are identified through an error message or other alert.

Data leakage detection in a multi-tenant data architecture

A data set may be represented as a hierarchical node set, comprising interrelated nodes that respectively include various data features (e.g., versions in a version-controlled software architecture.) Queries may be formulated regarding the inclusion of a particular feature in the nodes of the hierarchical data set ('does this node include this data feature?' and 'what is the path of the data feature through the node set?') Such queries may be evaluated by identifying a source node that includes the data feature, identifying candidate merge paths from the source node to the taget node, and determining whether the nodes of any candidate merge path include the data feature. The results may be presented to the user, e.g., as a visual layout of the portion of the hierarchical node set that includes the data feature or a timeline of nodes illustrating the path of the data feature over time.

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Chandru Ramakrishnan