dircachePackage dircacheserver is a caching proxy between a client and all directories.
inprocessPackage inprocess implements a simple, non-persistent, in-memory directory service.
remotePackage remote implements an inprocess directory server that uses RPC to connect to a remote directory server.
serverPackage server implements DirServer using a Tree as backing.
server/serverlogPackage serverlog maintains logs for directory servers, permitting replay, recovering, and mirroring.
server/treePackage tree implements a tree whose nodes are DirEntry entries.
unassignedPackage unassigned implements a directory server that errors out all its requests.

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