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https://issues.apache.org/jira/browse/DIRMINA-818?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Lecharny updated DIRMINA-818:
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Fix Version/s: 2.0.8
> Loosing connects on NioSocketConnector
> --------------------------------------
>
> Key: DIRMINA-818
> URL: https://issues.apache.org/jira/browse/DIRMINA-818
> Project: MINA
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.0.2
> Environment: WinXP JDK 1.6.1_23
> Reporter: Jörg Michelberger
> Fix For: 2.0.8
>
>
> I implemented a reconnection mode, which initiates a immediate
> NIOSocketConnector.connect after connection is broken. This works fine for a
> while, but NioSocketConnector thread stops performing connects on TCP/IP
> level after a while. Connects are then lost in MINA and the corresponding
> connect future listener is never called... Connector thread is no longer in
> thread list of target VM (listet by Netbeans Debugger or VisualVM) My
> Automatic doesn't work any longer... Connection requests are done by a
> scheduler thread in my API, or direct in the thread running the
> DisconnectFuture.operationComplete() callback, "NioProcessor-X" thread AFAIK.
> In MINA-Core 2.0.2 I found NioSocketConnector and AbstractPollingIoConnector
> which iterate with a MINA provided Iterator implementation over the keys()
> and selectedKeys() Set provided by the selector. Iterator remove is also
> used. Both Set provided by the Selector are NOT THREAD SAFE as the java API
> doc says. What happens if another thread adds a connection request to the
> selector and MINA AbstractPollingIoConnector.Connector is processing the Set
> with its Iterator and calls remove on the Iterator? Concurrent modification
> error or some other inconsistence? I think iteration should be done with a
> copy of the Set and remove should be done on the original keys() and
> selectedKeys() Set synchronized with a concurrency protecting lock. What do
> you think about?
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