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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-5932) Integrate communication with coordinator in tx protocol
Date Mon, 13 Nov 2017 07:39:01 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-5932?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vladimir Ozerov updated IGNITE-5932:
------------------------------------
    Fix Version/s: 2.4

> Integrate communication with coordinator in tx protocol
> -------------------------------------------------------
>
>                 Key: IGNITE-5932
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5932
>             Project: Ignite
>          Issue Type: Task
>          Components: cache
>            Reporter: Semen Boikov
>            Assignee: Semen Boikov
>             Fix For: 2.4
>
>
> Need integrate communication with coordinator in transactions protocol:
> - reading transaction need request read ID from coordinator
> - after locks are acquired need request ID from coordinator
> - this ID should be passed to primary/backups and passed to update
> - after tx is committed need notify coordinator (note: need make sure that this notification
is processed in such way so that thread executed transaction will see all his changes)
> Notes:
> - there are differences in prepare logic for optimistic/pessimistic/serializable transactions,
so most probably work with coordinator should be implemented separately for these tx types
> - need support case when coordinator fails during prepare (need think is necessary rollback
and retry tx or switch to next assigned coordinator)



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