Firebase setValue() method is not triggered sometimes while using diskpersistence

Question

While using firebase with disk persistence enabled in android, I observed sometimes the data added using setValue() method is not reflected in the database.The code is just simple firebaseRef.child("xyz").setValue(userObj).Any ideas?

Answer 1

Your updated question from the comments is:

how can I know if the value has been written to the database for sure?

For this you add a completion listener to the setValue() call. From the documentation on completion listeners:

ref.setValue("I'm writing data", new Firebase.CompletionListener() {
  @Override
  public void onComplete(FirebaseError firebaseError, Firebase firebase) {
    if (firebaseError != null) {
      System.out.println("Data could not be saved. " + firebaseError.getMessage());
    } else {
      System.out.println("Data saved successfully.");
    }
  }
});