②GFS Goal global view 1Re几 uge files available in the face of node failures Master node (meta server Centralized, index all chunks on data servers Chunk server(data server) File is split into contiguous chunks, typically 16-640B Each chunk replicated(usually 2x or 3x Try to keep replicas in different racksGFS 18 • Goal – global view – make huge files available in the face of node failures • Master Node (meta server) – Centralized, index all chunks on data servers • Chunk server (data server) – File is split into contiguous chunks, typically 16-64MB. – Each chunk replicated (usually 2x or 3x). • Try to keep replicas in different racks