Dragonfly SuperNode Configuration

The SuperNode is written in Java based on Spring Boot. You can easily set properties with command line parameters or with the configuration file.

SuperNode Properties

Simple Property

Property Name Default Value Description
supernode.baseHome /home/admin/supernode Working directory of the SuperNode
supernode.systemNeedRate 20 Network rate reserved for the system (Unit: MB/s)
supernode.totalLimit 200 Network rate reserved for the SuperNode (Unit: MB/s)
supernode.schedulerCorePoolSize 10 Core pool size of ScheduledExecutorService
supernode.dfgetPath /usr/local/bin/dfget/ The dfget path
supernode.advertiseIp the first non-loop address The advertise ip is used to set the ip that we advertise to other peer in the p2p-network. It should be the ip that clients can connect to.

Cluster Property


This is an array property, and every member of it has these attributes:

Name Default Value Description
ip None The ip of the cluster member.
registerPort 8002 It's used for clients to register themselves as peers of p2p-network into supernode.
downloadPort 8001 It's used for clients to download file pieces from supernode.
  • Config it in .properties file, for example:

    supernode.cluster[0].ip = ''
    supernode.cluster[0].registerPort = 8002
    supernode.cluster[1].ip = ''
  • Config it in .yaml file, for example:

        - ip: ''
          registerPort: 8002
        - ip: ''

Setting Properties

You have two options when setting properties of a SuperNode.

  • Setting properties with command line parameters.

    java -D<propertyName>=<propertyValue> -jar supernode.jar
  • Setting properties with the configuration file.

    java -Dspring.config.location=./,<otherConfigFilePath> -jar supernode.jar