## What changes were proposed in this pull request?

### Before
![_streaming_before](https://cloud.githubusercontent.com/assets/15843379/22181462/1e45c20c-e0c8-11e6-831c-8bf69722a4ee.png)

### After
![_streaming_after](https://cloud.githubusercontent.com/assets/15843379/22181464/23f38a40-e0c8-11e6-9a87-e27b1ffb1935.png

)

## How was this patch tested?

Manually

Author: Liwei Lin <lwlin7@gmail.com>

Closes #16673 from lw-lin/streaming.

(cherry picked from commit 40a4cfc7)
Signed-off-by: Shixiong Zhu <shixiong@databricks.com>