[GitHub] flink pull request: [FLINK-2626][CORE]add averageaccumulator

[mjsax]

Github user mjsax commented on the pull request:

    https://github.com/apache/flink/pull/1096#issuecomment-138281436
  
    ```
    Tests in error:
    SlotCountExceedingParallelismTest.testNoSlotSharingAndBlockingResult » 
JobExecution
    ```
    
    and 
    
    ```
    Failed tests:
    KafkaITCase>KafkaTestBase.prepare:155 Test setup failed: Unable to connect 
to zookeeper server within timeout: 6000
    KafkaProducerITCase>KafkaTestBase.prepare:155 Test setup failed: Unable to 
connect to zookeeper server within timeout: 6000
    
    Tests in error:
    KafkaITCase>KafkaTestBase.shutDownServices:196 » NullPointer
    KafkaProducerITCase>KafkaTestBase.shutDownServices:196 » NullPointer
    ```


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