@Override
  public void create(Object key, Object value, Object aCallbackArgument)
      throws TimeoutException, EntryExistsException, CacheWriterException {
    long startPut = getStatisticsClock().getTime();
    @Released
    EntryEventImpl event = newCreateEntryEvent(key, value, aCallbackArgument);
    try {
      validatedCreate(event, startPut);
    } finally {
      event.release();
    }
  }
Returns the member id of my distributed system

@since GemFire 5.0
geode-core/src/main/java/org/apache/geode/internal/cache/LocalRegion.java