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From "Semen Boikov (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (IGNITE-3428) TcpCommunicationSpi: potential message lost during reconnect
Date Tue, 05 Jul 2016 19:00:12 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-3428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Semen Boikov reassigned IGNITE-3428:

    Assignee: Semen Boikov

> TcpCommunicationSpi: potential message lost during reconnect
> ------------------------------------------------------------
>                 Key: IGNITE-3428
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3428
>             Project: Ignite
>          Issue Type: Bug
>          Components: general
>            Reporter: Semen Boikov
>            Assignee: Semen Boikov
>            Priority: Critical
> Added test reproducing lost message during reconnect: IgniteCacheMessageRecoveryIdleConnection.

> It is possible that method 'send' finished, then connection closed, there are unacknowledged
messages, but communication does not try to reconnect (if there are no others messages to
be sent to this node).
> Looks like there are at least 2 issues:
> - 'onDisconnected' checks result of 'clients.remove(id, rmv)' to trigger reconnect. this
is not saf (e.g. client is removed when session is closed on idle timeout)
> - 'onDisconnected' checks that messagesFutures() collection is not empty, but 'onDisconnected'
is erroneously called before all futures are polled from closing session (GridNioService.AbstractNioClientWorker.close)

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