DistOS 2014W Lecture 12

Discussion of Chubby

• Coarse-grained locking service
• developed at Google
• no new algorithms, methods

Design

• "filesystem"
• every file and directory is a readers/writers lock
• only small files 256K max
• only whole file operations
• locks are all advisory
• also functions as a name server
  • for functional names mainly/roles
• coarse grained

Implementation

• paxos algorithm