private void readyToSendMsgs() {
    synchronized (readyToSendMsgsLock) {
      readyToSendMsgs = true;
      readyToSendMsgsLock.notifyAll();
    }
  }
Call when the DM is ready to send messages.
geode-core/src/main/java/org/apache/geode/distributed/internal/ClusterDistributionManager.java