[jira] [Commented] (IGNITE-8828) Detecting and stopping unresponsive nodes during Partition Map Exchange

["Maxim Muzafarov (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-8828?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16946854#comment-16946854 ] 

Maxim Muzafarov commented on IGNITE-8828:
-----------------------------------------

Moved to 2.9 due to inactivity. Please, feel free to move it back if you will be able to complete the ticket by 2.8 code freeze date, December 2, 2019.

> Detecting and stopping unresponsive nodes during Partition Map Exchange
> -----------------------------------------------------------------------
>
>                 Key: IGNITE-8828
>                 URL: https://issues.apache.org/jira/browse/IGNITE-8828
>             Project: Ignite
>          Issue Type: Improvement
>          Components: general
>            Reporter: Sergey Chugunov
>            Priority: Major
>              Labels: iep-25
>             Fix For: 2.8
>
>   Original Estimate: 264h
>  Remaining Estimate: 264h
>
> During PME process coordinator (1) gathers local partition maps from all nodes and (2) sends calculated full partition map back to all nodes in the topology.
> However if one or more nodes fail to send local information on step 1 for any reason, PME process hangs blocking all operations. The only solution will be to manually identify and stop nodes which failed to send info to coordinator.
> This should be done by coordinator itself: in case it didn't receive in time local partition maps from any nodes, it should check that stopping these nodes won't lead to data loss and then stop them forcibly.



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