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Posted to issues@ignite.apache.org by "Sergey Sidorov (JIRA)" <ji...@apache.org> on 2015/09/08 02:03:45 UTC

[jira] [Created] (IGNITE-1384) Compute job ids duplication

Sergey Sidorov created IGNITE-1384:
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             Summary: Compute job ids duplication
                 Key: IGNITE-1384
                 URL: https://issues.apache.org/jira/browse/IGNITE-1384
             Project: Ignite
          Issue Type: Bug
            Reporter: Sergey Sidorov


Configure custom CollisionSpi with any implemenation which keeps waiting jobs list not empty. Execute considerable amount of tasks (e.g. 10000) from 2 or more nodes with jobs mapped to one node.

Error occurs on mapped node: "Received computation request with duplicate job ID (could be network malfunction, source node may hang if task timeout was not set)"

Reason: TaskGridWorker:processMappedJobs generates job ids as following: IgniteUuid jobId = IgniteUuid.fromUuid(node.id()); 
where node.id() is identifier of node the job is mapped to. So parallel generation of job ids on different nodes leads to ids duplication.

Possible solution: use node.id() of local node in job id generation.



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