private static long getWaitTimeout() {
    String prop = System.getProperty("remote.call.timeout", "1800");
    try {
      int val = Integer.parseInt(prop);
      return Math.abs(val * 1000L);
    } catch (NumberFormatException nfe) {
      return 1800 * 1000L;
    }
  }
Call with the id of a RemoteGfManager that no longer exists. All outstanding requests to that
manager will be cancelled.
geode-core/src/main/java/org/apache/geode/internal/admin/remote/AdminWaiters.java