How can data arriving from multiple instances of a data source be collected in an efficient manner?

How can large amounts of data be imported into a Big Data platform from a relational database?

The Poly Source compound pattern represents a part of a Big Data platform capable of ingesting high-volume and high-velocity data from a range of structured, unstructured and semi-structured data sources.

How can large amounts of unstructured data be imported into a Big Data platform from a variety of different sources in a reliable manner?

How can streaming data arriving from a single source be simultaneously forwarded to multiple destinations without any delay?

How can high velocity data be imported reliably into a Big Data platform in realtime?