EJTTianyu created IOTDB-691:
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Summary: merge process slow down->OOM in specfic case
Key: IOTDB-691
URL: https://issues.apache.org/jira/browse/IOTDB-691
Project: Apache IoTDB
Issue Type: Bug
Reporter: EJTTianyu
Fix For: 0.10.0-SNAPSHOT
In the following scenario, the master's merge process will gradually slow down
or even appear OOM.
* merge a storage group with very many time series, both timeseries's
```MeasurementSchema``` is different.
As an example, I generate a device called d1 within the storage group
```root.sg```. The device has 300,000 sensors(s0-s299,999). Then the problem
occured.
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