protected void sendDiscoveryRequest(String cluster_name, List<Address> members_to_find, boolean initial_discovery) throws Exception { PingData data=null; if(!use_ip_addrs || !initial_discovery) { PhysicalAddress physical_addr=(PhysicalAddress)down(new Event(Event.GET_PHYSICAL_ADDRESS, local_addr)); // https://issues.jboss.org/browse/JGRP-1670 data=new PingData(local_addr, false, NameCache.get(local_addr), physical_addr); if(members_to_find != null && members_to_find.size() <= max_members_in_discovery_request) data.mbrs(members_to_find); } // message needs to have DONT_BUNDLE flag: if A sends message M to B, and we need to fetch B's physical // address, then the bundler thread blocks until the discovery request has returned. However, we cannot send // the discovery *request* until the bundler thread has returned from sending M PingHeader hdr=new PingHeader(PingHeader.GET_MBRS_REQ).clusterName(cluster_name).initialDiscovery(initial_discovery); Message msg=new Message(null).putHeader(getId(),hdr) .setFlag(Message.Flag.INTERNAL,Message.Flag.DONT_BUNDLE,Message.Flag.OOB) .setTransientFlag(Message.TransientFlag.DONT_LOOPBACK); if(data != null) msg.setBuffer(marshal(data)); sendMcastDiscoveryRequest(msg); }
protected void sendDiscoveryRequest(String cluster_name, List<Address> members_to_find, boolean initial_discovery) throws Exception { PingData data=null; if(!use_ip_addrs || !initial_discovery) { PhysicalAddress physical_addr=(PhysicalAddress)down(new Event(Event.GET_PHYSICAL_ADDRESS, local_addr)); // https://issues.jboss.org/browse/JGRP-1670 data=new PingData(local_addr, false, NameCache.get(local_addr), physical_addr); if(members_to_find != null && members_to_find.size() <= max_members_in_discovery_request) data.mbrs(members_to_find); } // message needs to have DONT_BUNDLE flag: if A sends message M to B, and we need to fetch B's physical // address, then the bundler thread blocks until the discovery request has returned. However, we cannot send // the discovery *request* until the bundler thread has returned from sending M PingHeader hdr=new PingHeader(PingHeader.GET_MBRS_REQ).clusterName(cluster_name).initialDiscovery(initial_discovery); Message msg=new Message(null).putHeader(getId(),hdr) .setFlag(Message.Flag.INTERNAL,Message.Flag.DONT_BUNDLE,Message.Flag.OOB) .setTransientFlag(Message.TransientFlag.DONT_LOOPBACK); if(data != null) msg.setBuffer(marshal(data)); sendMcastDiscoveryRequest(msg); }