How to log new metrics in on_validation_epoch_end

[Aceticia]

Hi all, I have a few validation dataloaders. Each of these logs a metric like "val_loss/dataset_idx_0". I would like to track the average of all validation loss for early stopping, but I can't seem to log new metrics in validation epoch end callbacks. How to log this new metric? Thank you so much.

[shivammehta25]

self.log is not working? If not then if you are logging to tensorboard you can directly use self.logger.experiment.add_scalar().

[Aceticia]

Will early stopping call back have access to this logged metric?