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https://issues.apache.org/jira/browse/IGNITE-3558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15722540#comment-15722540
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Taras Ledkov edited comment on IGNITE-3558 at 2/15/17 1:32 PM:
---------------------------------------------------------------

Pull request to run tests: 
[pull/1326|https://github.com/apache/ignite/pull/1326]
[Tests 
results|http://195.239.208.174/project.html?projectId=IgniteTests&tab=projectOverview&branch_IgniteTests=pull%2F1326%2Fhead]


was (Author: tledkov-gridgain):
Pull request to run tests: 
[pull/1326|https://github.com/apache/ignite/pull/1326]

> Affinity task hangs when Collision SPI produces a lot of job rejections & 
> Failover SPI produces many attempts
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-3558
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3558
>             Project: Ignite
>          Issue Type: Bug
>          Components: compute
>            Reporter: Taras Ledkov
>            Assignee: Taras Ledkov
>             Fix For: 2.0
>
>          Time Spent: 3h
>  Remaining Estimate: 0h
>
> The test to reproduce:
> IgniteCacheLockPartitionOnAffinityRunWithCollisionSpiTest#testJobFinishing
> *Root cause*
> GridJobExecuteResponse isn't set from target node because there is a 
> confusion with GridJobWorker instances in the CollisionContext.
> *Suggestion*
> The method GridJobProcessor.CollisionJobContext.cancel()
> use passiveJobs.remove(jobWorker.getJobId(), jobWorker). 
> *passiveJobs* is a ConcurrentHashMap and GridJobWorker.equals() implements as 
> a equation of jobId.
> So, when two thread try to cancel the two workers with *the same jobIds* we 
> have the case:
> - thread0 remove jobWorker0 & cancel jobWorker0.
> - thread0 put jobWorker1 (because jobWorker0 already removed);
> - thread1: (has a copy of jobWorker0) and try to cancel it.
> - thread1: remove jobWorker1 instead of jobWorker0 (because jobId is used to 
> identify);
> - thread1: doesn't send ExecuteResponse because jobWorker0 has been canceled.
> *Proposal*
> Try to use system default equals for the GridJobWorker



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