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From "Alexey Goncharuk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-4111) Communication fails to send message if target node did not finish join process
Date Wed, 06 Jun 2018 11:22:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-4111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16503152#comment-16503152

Alexey Goncharuk commented on IGNITE-4111:

[~dpavlov] The ticket is still relevant, it would be great to merged it. [~ein] will you be
able to pull up master to resolve merge conflicts? If not, please move the ticket to the open

> Communication fails to send message if target node did not finish join process
> ------------------------------------------------------------------------------
>                 Key: IGNITE-4111
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4111
>             Project: Ignite
>          Issue Type: Bug
>          Components: general
>            Reporter: Semen Boikov
>            Assignee: Semen Boikov
>            Priority: Minor
>         Attachments: test onFirstMessage hang.log
> Currently this scenario is possible:
> - joining node sent join request and waits for TcpDiscoveryNodeAddFinishedMessage inside
> - others nodes already see this node and can send messages to it (for example try to
run compute job on this node)
> - joining node can not receive message: TcpCommunicationSpi will hang inside 'onFirstMessage'
on 'getSpiContext' call, so sending node will get error trying to establish connection
> Possible fix: if in onFirstMessage() spi context is not available, then TcpCommunicationSpi
 should send special response which indicates that this node is not ready yet, and sender
should retry after some time.
> Also need check internal code for places where message can be unnecessarily sent to node:
one such place is GridCachePartitionExchangeManager.refreshPartitions - message is sent to
all known nodes, but here we can filter by node order / finished exchage version.

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