It seems TCPConnectionMap didn't restore after network failure -------------------------------------------------------------- Key: JGRP-1671 URL: https://issues.jboss.org/browse/JGRP-1671 Project: JGroups Issue Type: Bug Affects Versions: 3.3.4 Reporter: Igor Mazur Assignee: Bela Ban Priority: Major I got next exception on node (let say node1). WARN [ConnectionMap.Acceptor [xxx.xxx.xxx.xxx:34383],null,null] org.jgroups.protocols.TCP [JGRP00006] failed accepting connection from peer: %s java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) ~[na:1.7.0_17] at java.net.SocketInputStream.read(SocketInputStream.java:150) ~[na:1.7.0_17] at java.net.SocketInputStream.read(SocketInputStream.java:121) ~[na:1.7.0_17] at java.io.BufferedInputStream.fill(BufferedInputStream.java:235) ~[na:1.7.0_17] at java.io.BufferedInputStream.read1(BufferedInputStream.java:275) ~[na:1.7.0_17] at java.io.BufferedInputStream.read(BufferedInputStream.java:334) ~[na:1.7.0_17] at java.io.DataInputStream.readFully(DataInputStream.java:195) ~[na:1.7.0_17] at org.jgroups.blocks.TCPConnectionMap$TCPConnection.readPeerAddress(TCPConnectionMap.java:495) at org.jgroups.blocks.TCPConnectionMap$TCPConnection.<init>(TCPConnectionMap.java:377) at org.jgroups.blocks.TCPConnectionMap$Acceptor.handleAccept(TCPConnectionMap.java:299) at org.jgroups.blocks.TCPConnectionMap$Acceptor.run(TCPConnectionMap.java:283) at java.lang.Thread.run(Thread.java:722) [na:1.7.0_17] After it two nodes works in next way: node 1 - sends Discovery requests every 3 seconds: [2013-08-05 21:02:00,585] TRACE [TransferQueueBundler,global,_index-subscriber-node01] org.jgroups.protocols.TCPPING _index-subscriber-node01: sending discovery request to xxx.xxx.xxx.xxx:34383 node 2 - [2013-08-05 21:02:03,791] TRACE [OOB-2,global,_index-subscriber-node02] org.jgroups.protocols.TCPPING _index-subscriber-node02: received GET_MBRS_REQ from _index-subscriber-node01, sending response [PING: type=GET_MBRS_RSP, arg=_index-subscriber-node02, view_id=[_index-subscriber-node03|230], is_server=true, is_coord=false, logical_name=_index-subscriber-node02, physical_addrs=xxx.xxx.xxx.xxx:34383] And node 1 - didn't get any response and continue to send discovery request every 3 seconds. So it necessary to restart node to restore functionality. What is interresting - I see much more simmilar exceptions - and in most cases functionality is restored authomatically. Only few of them break a node.