Jialin Qiao created IOTDB-1372:
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             Summary: Enhance management of TsFileResource 
                 Key: IOTDB-1372
                 URL: https://issues.apache.org/jira/browse/IOTDB-1372
             Project: Apache IoTDB
          Issue Type: Improvement
          Components: Core/Engine
            Reporter: Jialin Qiao


For each data file TsFile, we generate a TsFileResource, which contains the 
time interval of paths in this file.  The TsFileResource is used as a time 
filter to locate data.

Currently, all TsFileResources are cached in memory (TsFileManagement.java).

This may cause OOM. We need to control its memory.



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