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https://issues.apache.org/jira/browse/DIRMINA-1171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17714061#comment-17714061
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Alexander B commented on DIRMINA-1171:
--------------------------------------
Sry, there was some kind of deamon process in the background, which duplicated
the messages. I will reopen another issue with a more precise description of
the error
> DatagramAcceptor and their Sessions
> -----------------------------------
>
> Key: DIRMINA-1171
> URL: https://issues.apache.org/jira/browse/DIRMINA-1171
> Project: MINA
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.1.5
> Environment: Win10, Adopt OpenJDK 8
> Reporter: Alexander B
> Priority: Major
>
> Hello,
> I am using two independently created NioDatagramAcceptors, which are created
> by the following code :
> {code:java}
> AbstractIoService inputSource = new NioDatagramAcceptor();
> ((NioDatagramAcceptor) inputSource).getSessionConfig().setReuseAddress(true);
> DefaultIoFilterChainBuilder filterChainBuilderUDP =
> ((NioDatagramAcceptor)inputSource).getFilterChain();
> filterChainBuilderUDP.addLast("logger", new LoggingFilter());
> ((NioDatagramAcceptor)
> inputSource).getSessionConfig().setIdleTime(IdleStatus.READER_IDLE,
> getIdleTimeout());
> ((NioDatagramAcceptor) inputSource).setHandler(this);
> try {
> ((NioDatagramAcceptor)inputSource).bind(new InetSocketAddress(port));
> } catch (IOException e) {
> log.error("Failed to connect {}", e);
> }
> {code}
> One Acceptor is listening on port 9800, the other one on 9801. If I now send
> UDP packages (from a external application) to both ports (independently). It
> seems, that the received messages is randomly handled on session1 and
> session2.
> Information: The external app is sending:
> Message "TEST_1" just to port 9800
> Message "TEST_2" just to port 9801
> The overrided method messageReceived will give the following output:
> {code:java}
> public void messageReceived(IoSession session, Object message) throws
> Exception {
> String msgStr = message.toString();
> log.info("SessionId:" + session.getId() + " " + msgStr);
> }
> {code}
> 2023-04-19_09:34:43.629 [NioDatagramAcceptor-2] INFO - SessionId:1 TEST_1
> 2023-04-19_09:34:43.629 [NioDatagramAcceptor-3] INFO - SessionId:1 TEST_2
> 2023-04-19_09:34:47.415 [NioDatagramAcceptor-2] INFO - SessionId:2 TEST_1
> 2023-04-19_09:34:47.415 [NioDatagramAcceptor-3] INFO - SessionId:2 TEST_2
> So either it seems, that this happens randomly or crosswise (each message
> from each port n-times to all sessions)
> I can not see this effect while using `NioSocketConnector`. Is there anything
> I did not mention in the context of UDP/DatagramAcceptor?
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