[jira] [Created] (FLINK-4998) ResourceManager fails when num task slots > Yarn vcores

[Shang Yuanchun (Jira)]

Maximilian Michels created FLINK-4998:
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             Summary: ResourceManager fails when num task slots > Yarn vcores
                 Key: FLINK-4998
                 URL: https://issues.apache.org/jira/browse/FLINK-4998
             Project: Flink
          Issue Type: Bug
          Components: ResourceManager, YARN Client
    Affects Versions: 1.1.3, 1.2.0
            Reporter: Maximilian Michels
            Assignee: Maximilian Michels
             Fix For: 1.2.0


The ResourceManager fails to acquire containers when the users configures the number of task slots to be greater than the maximum number of virtual cores of the Yarn cluster.

We should check during deployment that the task slots are not configured to be larger than the virtual cores.

{noformat}
2016-11-02 14:39:01,948 ERROR org.apache.flink.yarn.YarnFlinkResourceManager                - FATAL ERROR IN YARN APPLICATION MASTER: Connection to YARN Resource Manager failed
org.apache.hadoop.yarn.exceptions.InvalidResourceRequestException: Invalid resource request, requested virtual cores < 0, or requested virtual cores > max configured, requestedVirtualCores=3, maxVirtualCores=1
{noformat}



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