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https://issues.apache.org/jira/browse/DIRMINA-831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Lecharny resolved DIRMINA-831.
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Resolution: Not A Problem
This is not a bug, this is the way the SDK deals with a Selector.open() on
windows. This page is explicit about what's going on during this operation :
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5083450 :
"WindowsSelectorImpl uses a Pipe class for wakeup monitoring. This Pipe, which
has one socket allocated each for source and sink, is only closed properly when
implClose is executed on WindowsSelectorImpl (i.e. if selector.close() were
called at some point)"
One more reason not to run anything serious on Windo$...
> NioSocketConnector create unused Connections, even when #connect(..) is not
> called.
> -----------------------------------------------------------------------------------
>
> Key: DIRMINA-831
> URL: https://issues.apache.org/jira/browse/DIRMINA-831
> Project: MINA
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.0.2
> Environment: win32, x86, winXP
> Reporter: Christian Schwarz
> Attachments: DIRMINA-831.avi, DIRMINA-831.jpg
>
>
> Hello,
> we are using Mina to access different types of network devices (Webcams,
> Digital-IO-Boxes, Access Control Systems,...). For every type of device we
> use a dedicated IoConnector because of the different protocols. Under some
> circumstances we get an "java.net.SocketException: No buffer space available
> (maximum connections reached?): connect". We figured out that for every
> created NioSocketConnector 8 connections will be created from localhost to
> localhost with different ports, even if we do no connect at all. So if we use
> many NioSocketConnector's we quickly run out of available ports, i guess.
> Is it possible to tune the NioSocketConnector so it only opens a port when
> we call #connect(..) ?
> Thanks in advance
> Chris
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