[
https://issues.apache.org/jira/browse/IGNITE-4637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Alexander Paschenko reassigned IGNITE-4637:
-------------------------------------------
Assignee: Alexander Paschenko
> Implement DDL operation completion protocol
> -------------------------------------------
>
> Key: IGNITE-4637
> URL: https://issues.apache.org/jira/browse/IGNITE-4637
> Project: Ignite
> Issue Type: Sub-task
> Components: SQL
> Reporter: Vladimir Ozerov
> Assignee: Alexander Paschenko
> Fix For: 2.0
>
>
> *Normal flow*
> 1) When participating node completed operation, it sends
> {{PARTICIPANT_FINISHED}} message to coordinator.
> 2) When coordinator collected responses from all participants, it notifies
> originator with {{FINISHED}} request.
> 3) Originator responds coordinator with {{FINISHED_ACK}} message.
> 4) Coordinator responds to all peers with {{PARTICIPANT_FINISHED_ACK}}
> message.
> *Originator leave*
> 1) Coordinator marks originator as "notified", and sends
> {{PARTICIPANT_FINISHED_ACK}} message to participants after all
> {{PARTICIPANT_FINISHED}} are collected.
> *Participant leave*
> 1) Coordinator marks participant as "finished" and no longer waits for any
> responses from it.
> *Coordinator leave*
> 1) The oldest node among remaining participants is elected as new coordinator.
> 2) Coordinator *polls* explicitly operation state from participants with
> {{IS_PARTICIPANT_FINISHED}} message.
> 3) Participants re-send {{PARTICIPANT_FINISHED}} message to new coordinator.
> 4) If all participant nodes have left, originator feature is completed with
> error.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
