[jira] [Updated] (IGNITE-5932) Integrate communication with coordinator in tx protocol

["Semen Boikov (JIRA)" <ji...@apache.org>]

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

Semen Boikov updated IGNITE-5932:
---------------------------------
    Fix Version/s:     (was: 2.3)

> Integrate communication with coordinator in tx protocol
> -------------------------------------------------------
>
>                 Key: IGNITE-5932
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5932
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: cache
>            Reporter: Semen Boikov
>            Assignee: Semen Boikov
>
> 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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