Ignite File System (IGFS)

Apache Ignite has an in-memory distributed filesystem interface to work with files in memory. IGFS is the acronym of Ignite distributed file system. IGFS accelerates Hadoop processing by keeping the files in memory and minimizing disk IO.

IGFS provides APIs to perform the following operations:

• CRUD (Create, Read, Update, and Delete Files/Directories) file operations
• Perform MapReduce; it sits on top of Hadoop File system (HDFS) to accelerate Hadoop processing
• File caching and eviction

We'll explore IGFS and Hadoop MapReduce acceleration in later chapters.