[jira] [Created] (IGNITE-731) ClusterGroup.forRandom() should return empty projection in case of empty source projection

["Alexey Kuznetsov (JIRA)" <ji...@apache.org>]

Alexey Kuznetsov created IGNITE-731:
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             Summary: ClusterGroup.forRandom() should return empty projection in case of empty source projection
                 Key: IGNITE-731
                 URL: https://issues.apache.org/jira/browse/IGNITE-731
             Project: Ignite
          Issue Type: Task
          Components: general
    Affects Versions: sprint-3
            Reporter: Alexey Kuznetsov
             Fix For: sprint-4


I found that ClusterGroup.forRandom() is inconsistent for me.

If I try to take forRandom() on empty cluster group
 it throws "java.lang.IllegalArgumentException: n must be positive" 

I think forRandom() should return empty cluster group in order to not check if source projection is empty.

Or at least throws exception with meaningful text.



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