public static void operateClearCache() {
    ChunkCache.getInstance().clear();
    TimeSeriesMetadataCache.getInstance().clear();
    BloomFilterCache.getInstance().clear();
  }
After finishing settling tsfile, we need to do 2 things : (1) move the new tsfile to the
correct folder, including deleting its old mods file (2) update the relevant data of this old
tsFile in memory ,eg: TsFileSequenceReader, {@link #tsFileManager}, cache, etc.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/DataRegion.java