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20.4.2.2. jgroups-udp.xml

jgroups-udp.xml is a pre-configured JGroups file in JBoss Data Grid. The jgroups-udp.xml configuration
  • uses UDP as a transport and UDP multicast for discovery.
  • is suitable for large clusters (over 8 nodes).
  • is suitable if using Invalidation or Replication modes.
  • minimizes inefficient use of sockets.
The behavior of some of these settings can be altered by adding certain system properties to the JVM at startup. The settings that can be configured are shown in the following table.
Expand
Table 20.1. jgroups-udp.xml System Properties
System Property Description Default Required?
jgroups.udp.mcast_addr IP address to use for multicast (both for communications and discovery). Must be a valid Class D IP address, suitable for IP multicast. 228.6.7.8 No
jgroups.udp.mcast_port Port to use for multicast socket 46655 No
jgroups.udp.ip_ttl Specifies the time-to-live (TTL) for IP multicast packets. The value here refers to the number of network hops a packet is allowed to make before it is dropped 2 No
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