Re: [jgroups-users] WARNING: JGRP000006: failed accepting connection from peer

On 19/10/18 02:13, Questions/problems related to using JGroups wrote:
> 
>     A customer using our jgroups-based-app has reported this happening
>     every ~10 seconds for at least a couple days (as far back as my info
>     goes), and then Java ran out of memory, which may or may not be related:
> 
>     10/18/18 12:57:31 PM org.jgroups.blocks.cs.TcpServer$Acceptor run
>     WARNING: JGRP000006: failed accepting connection from peer
>     java.io.EOFException
>     at java.io.DataInputStream.readFully(DataInputStream.java:197)
>     at
>     org.jgroups.blocks.cs.TcpConnection.readPeerAddress(TcpConnection.java:235)
>     at org.jgroups.blocks.cs.TcpConnection.<init>(TcpConnection.java:51)
>     at
>     org.jgroups.blocks.cs.TcpServer$Acceptor.handleAccept(TcpServer.java:126)
>     at org.jgroups.blocks.cs.TcpServer$Acceptor.run(TcpServer.java:111)
>     at java.lang.Thread.run(Thread.java:745)
> 
>     Do you have any idea what could be causing this? I don't know yet if
>     the other 2 nodes in the cluster saw issues in their logs or not,
>     and am getting the logs. [...]
> 
> 
> I have the logs for the other two nodes now, and they also have 
> identical stack traces at the same time.
> 
> I don't think it matters, but this is Oracle Java version "1.8.0_111"
> Java(TM) SE Runtime Environment (build 1.8.0_111-b14)
> Java HotSpot(TM) 64-Bit Server VM (build 25.111-b14, mixed mode)
> 
> Could this simply be something else trying to connect to the cluster 
> nodes every 10 seconds?

Yes. You could run lsof or netstat -na |grep server-port, where 
server-port is the default port configured in TCP.bind_port, so see 
which program is connecting.

> Thanks again,
> Bobby
> 
> 
> 
> 
> 
> 
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> 

-- 
Bela Ban | http://www.jgroups.org



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