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Apache Atlas uses the JanusGraph graph database at the heart of its metadata repository.  This graph is used to show the interconnected relationships between data sources; the data sets they host; the business  meaning of the data elements within each data set; the classification of these elements in terms of quality, confidentiality, retention; who (people and processes) are using them and for which purposes.  

JanusGraph uses a pluggable persistence store to save the metadata content and a search index for its search API.  Apache Atlas can take advantage of this configurability to support a range of size, scalability and performance requirements.



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