EOFException[JGRP000030] : failed handling incoming message ----------------------------------------------------------- Key: JGRP-2210 URL: https://issues.jboss.org/browse/JGRP-2210 Project: JGroups Issue Type: Bug Affects Versions: 3.6.10 Reporter: Dharam Thacker Assignee: Bela Ban Hi Team, I am using Apache geode as our distributed caching solution which internally using JGroups 3.6.10.Final version. I see this exception almost daily 5-6 times but we don't know the root cause for that. I tried reaching with Apache Geode community as well. As per their suggestion, it could be due to empty datagrams being sent to process. I confirm that both of my client and server processes are using same version as 3.6.10.Final. I would request you to look into the same. *+Exception Stack Trace:+* [error 2017/07/28 00:13:30.521 EDT EventServer <unicast receiver,hostXXX> tid=0x45] JGRP000030: hostXXX<v2>:1025: failed handling incoming message: java.io.EOFException java.io.EOFException at org.jgroups.util.ByteArrayDataInputStream.readShort(ByteArrayDataInputStream.java:138) at org.jgroups.protocols.TP.handleSingleMessage(TP.java:1705) at org.jgroups.protocols.TP.receive(TP.java:1654) at org.apache.geode.distributed.internal.membership.gms.messenger.Transport.receive(Transport.java:160) at org.jgroups.protocols.UDP$PacketReceiver.run(UDP.java:701) at java.lang.Thread.run(Thread.java:745) Within our company, there is some cyber security server which keeps hitting our process & I get below warning as well, [warning 2017/08/16 22:05:51.334 EDT EventServer <unicast receiver,hostXXX> tid=0x46] JGRP000010: packet from *hostYYY*:45482 has different version (0.0.2) than ours (3.6.10); packet is discarded *hostYYY* is not a part of my cluster process [Neither client not server] but some cyber security scanner which knows about all hosts and have its own way to check for security violations Response from Geode community: https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=...