Firebase : Read-only & non-realtime mode activated to improve browser performance

Question

Read-only & non-realtime mode activated to improve browser performance

Message pops up in my project and I\'m unable to delete the n

Answer 1

1) Click on the Node you want to mass delete

2) Import an empty .json file (just containing curly braces, {} )

3) The node value will be set to null, in other words it is deleted or rather overridden with an empty node!

Answer 2

Multiple times trying to load the specific keys can be tiresome. There is a python library that could do this for you easily.

http://ozgur.github.io/python-firebase/

I needed to delete a lot of keys and this helped me do that in one go.

Answer 3

What you can do is to have an OnClickListener and call the remove value method to your DatabaseReference, like this:

  mCart.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            mDatabaseReference.removeValue();
        }
    });

Answer 4

When it detects that it's downloading too many nodes from your database, the Firebase Console stops using real-time mode and switches to read-only mode. In this mode it requires less work from the browser, so it is more likely that the browser will stay performant.

To get back to realtime mode, you have to go to a location that has fewer nodes. So say that you start loading the database at the root, that means that "pseudo address bar" at the top of the data tree will say:

https://<your-project>.firebaseio.com/

And then will show the list of items. Now click on the URL in that pseudo address bar and change it to:

https://<your-project>.firebaseio.com/<one-of-your-keys>

And hit enter. The data tree will reload with just the node from one-of-your-keys and down and will likely switch to realtime mode again.

Answer 5

If you want to delete a high level node when this is activated, I recommend doing this.

Open up a text editor and type in { }. Save this file as "blankJSON.json".

Go to high level node you want deleted and select it, once it opens up and shows you all the nodes that need to be removed, select the three bars at the top right and select "Import JSON", (It would be safe to first "Export JSON" If you don't have backups, in case you make a mistake here). Import the JSON file we created earlier titled "blankJSON".

This will delete all of the data inside.

Once again, I highly suggest you make a backup before doing this, It's extremely easy to make a backup and also it is much easier than you would think to upload this blankJSON to the wrong node and then erasing a bunch of important data.

Answer 6

I have the same problem... I'm a bit surprised because I though Firebase could easily scale to support huge amount of data (example million users, etc.).

I have a node with 80000 sub-nodes (each object has his own push-id) and I cannot delete or perform any action on it because the real-time doesn't work in Firebase console.

I think the only way to udate or delete the data it's to do it via JAVA code :(