[jira] [Assigned] (IGNITE-4648) IgniteInternalTx.prepare() does not wait for async operations to complete

["Alexey Kuznetsov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-4648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexey Kuznetsov reassigned IGNITE-4648:
----------------------------------------

    Assignee: Alexey Kuznetsov

> IgniteInternalTx.prepare() does not wait for async operations to complete
> -------------------------------------------------------------------------
>
>                 Key: IGNITE-4648
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4648
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>    Affects Versions: 1.7
>            Reporter: Pavel Tupitsyn
>            Assignee: Alexey Kuznetsov
>            Priority: Minor
>             Fix For: 2.1
>
>
> {{commit}} and {{rollback}} wait for async operations by calling {{tx.txState().awaitLastFut();}} (see {{GridCacheSharedContext}}).
> There is no such thing in {{IgniteInternalTx.prepare()}} implementations.
> Since {{prepare}} is an internal method, this is not an issue mostly, except for two things:
> * JTA. {{CacheJtaResource}} calls {{prepare()}} explicitly. 
> * .NET {{TransactionScope}} API. Same thing as JTA, basically. {{PlatformTransactions}} call {{prepare()}} as well.
> As a result, if user starts an async operation within JTA transaction and then completes the tx, undefined behavior is possible.



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