Antiquity
Secure Log For Wide-Area Distributed Storage

• To summarize, up to now we have the following applications compiled and running:
• MacFUSE
• Function:
• Implements a fully functional file system in a user space
  
• Antiquity admin & client scripts
• Function:
• Antiquity:
• Storage system
  
• Admin script:
• Starts up an administrator and some number of storage servers
• Client script:
• Starts a client that runs through a regression test testing the log api
• Uses Bamboo's operating system to run configuration files
  
• Bamboo
• Function:
• Runs configuration files
• Mirroring file system that uses FUSE:
• Summary of commands:
• Create the mount point and file system directories:
• mkdir -p /tmp/mirror/dst
• mkdir -p /tmp/mirror/src
• Navigate to the /fs/ directory
  
• cd ~/antiquity/src/moxie/fs/
• Run the mirror configuration file in the current directory
• ../../../bin/run-java bamboo.lss.DustDevil mirrorfs.cfg
• Place a file in the /src/ file system and view the mirror of /src/ in /dst/
• cp foo.txt /tmp/mirror/src/
• ls /tmp/mirror/dst/
• Detailed explanation
• First create directories (these directories are used by the mirroring configuration file we are going to provide):
• mkdir -p /tmp/mirror/dst
  
• The local directory on the machine known as the "mount point"
  
• mkdir -p /tmp/mirror/src
• The file system that will be mounted onto the mount point
  
• Change directories (in here we have the mirroring configuration file):
• cd ~/antiquity/src/moxie/fs/
• Run the mirror configuration file in the current directory
  
• ../../../bin/run-java bamboo.lss.DustDevil mirrorfs.cfg
  
• Note:
• mirrorfs.cfg DOES use FUSE to locally mount a file system
  
• With Bamboo running the mirroring configuration file, copy any file into /tmp/mirror/src
• i.e. cp foo.txt /tmp/mirror/src/
• If you do an ls command on the /tmp/mirror/dst/ (the mount point) you'll notice that the foo.txt file you placed in the file system /tmp/mirror/src/ has been mirrored onto our mount point /tmp/mirror/dst/ (along with any other files that might have been in the /tmp/mirror/src/ directory)
• ls /tmp/mirror/dst/
  
• This demonstrates that by using FUSE, our file system /src/ has been mounted onto the local directory /dst/ on the machine
  
• Note:
• The /tmp/mirror/dst/ file is a read-only directory
  
• To unmount the local file system just mounted use:
• umount /tmp/moxie/dst/

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Last modified 2007/08/17.