云尘

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![image](https://user-images.githubusercontent.com/12254857/47411891-b0730c80-d79c-11e8-96a4-fd2da10cd80f.png) How can you make the four links appear?

@songgane Hi,how to set spark.executor.instances and spark.executor.memory value? Thanks! I add it to spark-defaults.conf. But in the UI all spark metrics are displayed as 0... ![image](https://user-images.githubusercontent.com/12254857/47639656-d1709e80-db9c-11e8-9b09-ecde95d99d4e.png) ![image](https://user-images.githubusercontent.com/12254857/47639812-23192900-db9d-11e8-84ac-d134d91d86c5.png)