[infinispan-issues] [JBoss JIRA] (ISPN-1041) Ensure Callable isolation for distributed executors

[Vladimir Blagojevic (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-1041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Blagojevic updated ISPN-1041:
--------------------------------------

    Git Pull Request: https://github.com/infinispan/infinispan/pull/246  (was: https://github.com/infinispan/infinispan/pull/246)
         Component/s: Distributed Execution and Map/Reduce
                          (was: Distributed Cache)

    
> Ensure Callable isolation for distributed executors
> ---------------------------------------------------
>
>                 Key: ISPN-1041
>                 URL: https://issues.jboss.org/browse/ISPN-1041
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Distributed Execution and Map/Reduce
>    Affects Versions: 5.0.0.BETA1
>            Reporter: Vladimir Blagojevic
>            Assignee: Vladimir Blagojevic
>             Fix For: 5.0.0.BETA2
>
>
> If Callable submitted for distributed execution contains mutable instance fields they might get mutated locally before being sent for a remote execution thus potentially resulting in wrong results being returned to a task invoker. Just before Callable is dispersed across cluster it gets invoked locally where instance fields of a submitted Callable can be possibly mutated; Callable is in turn sent to remote nodes with mutated values instead of "original" field values as submitted by user. 
> We need to ensure that each execution node gets a pristine version of Callable object submitted by the user.

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