@Override
  public boolean equals(Object obj) {
    if (!super.equals(obj)) {
      return false;
    }
    WALInfoEntry other = (WALInfoEntry) obj;
    return Objects.equals(this.tabletInfo, other.tabletInfo);
  }
This entry class stores info for persistence.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/wal/buffer/WALInfoEntry.java