@Override
  public String toString() {
    return String.format(
            "PipeWritePlanEvent{progressIndex=%s, isGeneratedByPipe=%s}",
            progressIndex, isGeneratedByPipe)
        + " - "
        + super.toString();
  }
This {@link PipeWritePlanEvent} does not share resources with other events.
iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/pipe/event/PipeWritePlanEvent.java