[jira] [Commented] (IGNITE-1650) Add ability to specify thread pool for IgniteFuture listen/chain methods.

["Chandresh Pancholi (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-1650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15249821#comment-15249821 ] 

Chandresh Pancholi commented on IGNITE-1650:
--------------------------------------------

[~vozerov] How can i reproduce it? or from where i can better understand it?



> Add ability to specify thread pool for IgniteFuture listen/chain methods.
> -------------------------------------------------------------------------
>
>                 Key: IGNITE-1650
>                 URL: https://issues.apache.org/jira/browse/IGNITE-1650
>             Project: Ignite
>          Issue Type: Task
>          Components: general
>    Affects Versions: ignite-1.4
>            Reporter: Vladimir Ozerov
>            Priority: Critical
>             Fix For: 1.6
>
>
> Closures passed to IgniteFuture listen() and chain() methods are executed either in the same thread if future is completed, or in a completion thread (usually this is a thread from one of Ignite pools).
> This enforces restrictions on what user can do in closures. He cannot use call operations, he cannot call any Ignite operations. Otherwise deadlocks or starvation could occur.
> To fix that we should allow user to pass optional thread pool where passed closure should be executed. This already done in Java 8 CompletableFuture. We should do almost the same.



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