@Override
  public String toString() {
    return "ShutdownAllRequest sent to " + getRecipientsDescription() + " from "
        + getSender();
  }
Sends a shutdownAll request to all other members and performs local shutdownAll processing in
the waitingThreadPool.
geode-core/src/main/java/org/apache/geode/internal/admin/remote/ShutdownAllRequest.java