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https://issues.apache.org/jira/browse/IGNITE-3057?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Semen Boikov resolved IGNITE-3057.
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    Resolution: Fixed

Merged into master (commit fc0dd9a).

> Optimize transactions that do not acquire any locks
> ---------------------------------------------------
>
>                 Key: IGNITE-3057
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3057
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>    Affects Versions: 1.5.0.final
>            Reporter: Valentin Kulichenko
>            Assignee: Valentin Kulichenko
>             Fix For: 1.6
>
>
> There are cases when a transaction did not acquire any locks (e.g., 
> optimistic read-only transaction). In this case we can simply remove 
> transaction from the local transaction manager, but we are going through all 
> the steps, like prepare and commit/rollback.
> This optimization can give serious benefit in read-most use cases, like 
> caching.



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