[jboss-jira] [JBoss JIRA] (JGRP-1880) UDP.ip_ttl is ignored and is always 1

[ https://issues.jboss.org/browse/JGRP-1880?page=com.atlassian.jira.plugin.... ] Bela Ban edited comment on JGRP-1880 at 9/25/14 8:36 AM: --------------------------------------------------------- I found out that the DatagramSocket returned via {{DatagramChannel.socket()}} has a stupid readLock / writeLock held when calling {{receive()}} or {{send()}} respectively. This means that the unicast receiver in TP will block until unicast messages are received, but this will also keep the _sender_ from sending any data ! Very stupid and breaking the semantics of {{DatagramSocket.send()}} which allows for concurrent receiving and sending as there's no readLock or writeLock, but synchronization is done on the DatagramPacket only. I don't really want to use 2 separate unicast sockets now; one for receiving unicasts and one for sending unicasts. More investigation needed... was (Author: belaban): I found out that the DatagramSocket returned via {{DatagramChannel.socket()}} has a stupid readLock / writeLock held when calling {{receive()}} or {{send()}} respectively. This means that the unicast receiver in TP will block until unicast messages are received, but this will also keep the _sender_ from sending any data ! Very stupid and breaking the semantics of {{DatagramSocket.send()}} which allows for concurrent receiving and sending as there's no readLock or writeLock, but synchronization is done on the DatagramPacket only. I don't really want to use 2 separate unicast sockets now; one for receiving unicasts and one for sending unicasts. More investigate needed... -- This message was sent by Atlassian JIRA (v6.3.1#6329)