xiangdong Huang created IOTDB-329:
-------------------------------------
Summary: MetricService not quite in Integration Tests (easy-fix,
for fresh contributors)
Key: IOTDB-329
URL: https://issues.apache.org/jira/browse/IOTDB-329
Project: Apache IoTDB
Issue Type: Bug
Affects Versions: 0.8.0, 0.9.0, 0.8.1
Reporter: xiangdong Huang
Attachments: image-2019-11-29-22-38-52-640.png
There are some error infos on Travis:
!image-2019-11-29-22-38-52-640.png!
It is because in our ITs, MetricService is not closed after an IT finished.
It is quite easy to fix that, just add the code into
`EnvironmentUtils.cleanEnv()`:
```
MetricsService.getInstance().stop();
```
before `cleanAllDir();`
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