File, Directories, and Handles

We have seen how a client finds the Chubby master. Now we look at what a client actually works with: files, directories, and the handles it uses to open them.

Chubby's file system interface is a tree of files and directories. Each directory holds a list of child files and directories. Chubby calls each file or directory a node, the basic object in that tree.

Nodes

Any node, whether a file or a directory, can act as an advisory reader/writer lock. Advisory means Chubby does not force anyone to respect it. The lock only works if every client checks it before touching the resource it protects

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