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Posted to dev@mina.apache.org by "Alexander B (Jira)" <ji...@apache.org> on 2021/03/14 11:01:00 UTC
[jira] [Commented] (DIRMINA-1137) PortUnreachable not check while
writing to socket
[ https://issues.apache.org/jira/browse/DIRMINA-1137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17301106#comment-17301106 ]
Alexander B commented on DIRMINA-1137:
--------------------------------------
Dear Jonathan,
Sorry for my delay. But your links dont help me.
They dont show, how to solve the problem with Mina specific approaches and furthermore, even if i use "localhost" or "any other IP within the same network" oder use InetAddress.getByName(host), in case of the first returned ICMP the session closes. There must be something I am doing wrong - and I dont see.
Bests
Alex
> PortUnreachable not check while writing to socket
> -------------------------------------------------
>
> Key: DIRMINA-1137
> URL: https://issues.apache.org/jira/browse/DIRMINA-1137
> Project: MINA
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.1.4
> Environment: Java 1.8, Unix/Windows
> Reporter: Alexander B
> Priority: Critical
> Attachments: exceptionstack.png, minatest2.7z
>
>
> Hi guys,
> My intention is to send udp package to a specific ip and port (even if there is not receiver). Me - as the sender - do not have any knowledge about (existing) receivers. After receiving a "unreachable port" package back to myself (because no receiver exists), the session was closed automatically.
> In your class AbstractPollingIoProcessor from lines 1108ff. in such a case a UnreachablePortException was thrown, catched and therefore in line 1112 the session was closed.
> In contrast to this, while reading from a socket (lines 560ff.), you are distinguishing cases with and without the flag CloseOnPortUnreachable from the sessionConfig. [I am not quite sure about my statement here]
> Can you explain, why this was not done at the "writing"-process? Or was there anything I missunderstood?
> Thanks
> Alex
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