Offline Preparation

• In total, 3 basic files are needed for configuring the server: server list file, AS delay file, and prefix data file.
  1. Build an ORBIT disk image by following the steps on the build for Ubuntu page. We've tested Ubuntu 10.10 and found it to work well.
  2. Design a topology: see topology setting on orbit experiment.
  3. Configure the delay module: see delay module setting for experimental setup.
  4. GNRS server config: see server configuration for experimental setup.
  5. Client configuration: see Configuring the client.
  6. Build a client insert/update/lookup trace

Server Setup

• Load image to ORBIT and allocate ASes to nodes that are successfully imaged.
• Run the script GNRSServPrep.sh which will generate all server configuration files, send them to corresponding nodes and start delay module.
• Run GNRSServRun.sh which will configure the delay module and start GNRS server on each server node.

Running the Client

• Choose nodes that will be used as client.
• Run GNRSCliPrep.sh.
• Run GNRSCliRun.sh.

Interpreting the Results

• Take a look at the CSVs and EPS files.

Potential Problem

• When several gnrs servers are resided in one node, messages forwarded amongst those servers couldn't be handled by the delay module.
• When client and server are located at the same node, message forwarded from the client to the server can't be handled by the delay module either.
• When multiple servers are located in one node, they shouldn't share database.