[jira] [Created] (IGNITE-3426) Compute Engine: job ID is generated in a non unique way

["Denis Magda (JIRA)" <ji...@apache.org>]

Denis Magda created IGNITE-3426:
-----------------------------------

             Summary: Compute Engine: job ID is generated in a non unique way
                 Key: IGNITE-3426
                 URL: https://issues.apache.org/jira/browse/IGNITE-3426
             Project: Ignite
          Issue Type: Improvement
            Reporter: Denis Magda


Presently seems like new job IDs are generated in a way that is not guaranteed to be unique.

Specifically, job IDs are generated in: 
{code}
IgniteUuid jobId = IgniteUuid.fromUuid(node.id());
org/apache/ignite/internal/processors/task/GridTaskWorker.java:564)
{code}

fromUuid generates the new job ID using UUID passed to it + an AtomicInteger (who is always incremented). Since the UUID passed to it is the *destination node* and not the local node, in environments where the job submission is relatively even, the generated job ID might not be unique.

Think that the UUID used there is supposed to be the local node UUID.

Otherwise this can be a reason of the following exception

{noformat}
 "Jobs map already contains mapping for key" 
{noformat}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)