@Override
  public synchronized void freezeRate(final boolean isStopPipe) {
    super.freezeRate(isStopPipe);
    configRegionCommitMeter.set(null);
  }
This will calculate the estimated remaining time of the given pipe's {@link
PipeConfigNodeSubtask}.

@return The estimated remaining time
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/pipe/metric/overview/PipeConfigNodeRemainingTimeOperator.java