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From "Dmitry Karachentsev (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-7163) Validate connection from a pre-previous node
Date Fri, 29 Jun 2018 11:20:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-7163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16527482#comment-16527482
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Dmitry Karachentsev commented on IGNITE-7163:
---------------------------------------------

[~yzhdanov] Yes, it validates, even if user set larger value, failureDetectionTimeout will
be applied. It cannot be changed through mx bean, but in terms of this ticket added connection
check interval.

> Validate connection from a pre-previous node
> --------------------------------------------
>
>                 Key: IGNITE-7163
>                 URL: https://issues.apache.org/jira/browse/IGNITE-7163
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: general
>    Affects Versions: 2.3
>            Reporter: Alexandr Kuramshin
>            Assignee: Dmitry Karachentsev
>            Priority: Major
>              Labels: discovery
>             Fix For: 2.7
>
>
> If some pre-previous node connects to the local node with the previous node in the message's
failed nodes collection additional steps should be done:
> # Connection with the previous node should be validated.
> # If a message from the previous node was not received a long time ago, the previous
node should be considered as failed and the pre-previous node connection accepted.
> # If the previous node connection is alive then different scenarios possible
> ## Answer with a new result code causing the pre-previous node to try to reconnect to
the previous node
> ## Break connection with the pre-previous node causing to continue the possible cluster
split.
> ## Check connections with nodes after pre-previous node and delay decision by answering
RES_WAIT to get more predictable split and stable topology.



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