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https://issues.apache.org/jira/browse/IGNITE-23680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17923677#comment-17923677
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Vladislav Pyatkov commented on IGNITE-23680:
--------------------------------------------

Merged 56f674aadec137439fcbeaa5b06dc800eb3ebb7b

> Add the ability to rollback any transaction by ID
> -------------------------------------------------
>
>                 Key: IGNITE-23680
>                 URL: https://issues.apache.org/jira/browse/IGNITE-23680
>             Project: Ignite
>          Issue Type: Improvement
>    Affects Versions: 3.1
>            Reporter: Pavel Pereslegin
>            Assignee: Vladislav Pyatkov
>            Priority: Major
>              Labels: ignite-3, transactions
>             Fix For: 3.1
>
>          Time Spent: 2h 40m
>  Remaining Estimate: 0h
>
> *Motivation*
> In order to implement the SQL command
> {code:sql}
> KILL TRANSACTION txId
> {code}
> we need to add a new method to TxManager/improvement of TxManager#finish that 
> will be able to rollback any read-only and read-write transaction by tx ID. 
> It also should return the boolean result: true if the tx existed and was 
> aborted by this command, false otherwise.
> For example
> {code:java}
> // returns false in case transaction not exists /  already completed (or 
> aborted)
> CompletableFuture<Boolean> finish(UUID txId);
> {code}
> *Definition of done*
> A method 
> {noformat}
> CompletableFuture<Boolean> TxManager#finish(txId){noformat}
> has to be done, which accepts only tx id to abort the transaction on 
> coordinator. We also should add a link to RW txns instances into volatile tx 
> states, and a link to RO txns to low watermark locks (or RO tx inflights). 
> The mentioned method should be able to get tx instance by id and call 
> finish(commit = false) on it. 
> Cluster-wide txn finish by id should be done under separate ticket 
> IGNITE-23695 .



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