@Override
  public PersistentMemberID getPersistentIDIfOnline() {
    if (online) {
      return persistentMemberView.getMyPersistentID();
    }
    return null;
  }
Start listening for persistent view updates and apply any updates that have already happened.

<p>
This method should be called after we have decided that there is no conflicting persistent
exception.
geode-core/src/main/java/org/apache/geode/internal/cache/persistence/PersistenceAdvisorImpl.java