@Override
  public List<TsFileResource> getAllSourceTsFiles() {
    List<TsFileResource> allSourceFiles = new ArrayList<>(fullyDirtyFiles);
    allSourceFiles.addAll(filesView.sourceFilesInCompactionPerformer);
    return allSourceFiles;
  }
This settle task contains fully_dirty files and partially_dirty files. This task will do the
following two things respectively: 1. Settle all fully_dirty files by deleting them directly. 2.
Settle partially_dirty files by cleaning them with inner space compaction task. The
partially_dirty files will be compacted into one target file.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/compaction/execute/task/SettleCompactionTask.java