@Override
  protected String getRootCause(final Throwable throwable) {
    return throwable != null ? throwable.getMessage() : null;
  }
Try to consume an {@link Event} by the {@link IoTDBConfigRegionExtractor}.

@return {@code true} if the {@link Event} is consumed successfully, {@code false} if no more
    {@link Event} can be consumed
@throws Exception if any error occurs when consuming the {@link Event}
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/pipe/agent/task/PipeConfigNodeSubtask.java