So I've been with a company around 3 years and a few new people have joined recently in the same job title and role as me. These new employees basically have no knowledge of how anything works and it could take 6 months or a year before they become competent. I've heard that they are making 10k more than me even though I'm training and mentoring them while also trying to get my own work done.
I'm really not happy about it and my morale is way down so I'm looking for a bit of advice on how I should handle this with my manager. Does anyone know if this is normal in a competitive job market such as the one I am in. What do people think? Should I make a fuss with my manager next time I'm talking to them or just wait until the next compensation review and see if they make it right? Any advice would be appreciated.
Edit: Should have mentioned that a lot of people have left the team lately and there's a lot of tribal knowledge so they'd be pretty screwed without me.