How many liters of water do you drink during training? During long track ride, I can manage to contain my self from only consuming 2 500ml bottle of water. Isn't it bad or good?
Your body works best when you have the appropriate amount of water in it.
Although the crest of the performance curve wrt hydration is fairly flat.
Moderate overhydration is probably "better" than moderate dehydration.
Apart from that, the goal is to drink what you need.
Not more, not less.
As long as you do that, good or bad doesn't apply.
Some sweat more and need to drink more.
Some sweat less and can get away with drinking less.
Only time rationing would possibly make sense is if you only have a set amount and you want it to last the whole ride.
I spent some time weighing myself pre-/post-ride to get some feel for the balace between drink and sweat.
If you're concerned, do that.
If you are really thirsty or sweating a lot then you need to drink plenty of water to avoid dehydration. Though over dehydration is fine, this will also help your body to function well.
It's fine dear to drink more water because it helps our bodies replenishments. I consume half liter during my session and it fills my thirst.