I had been wondering about knowing mongoDB changes instantly for a while and best solution that I have ever seen, is tailing mongoDb logs and I just had given wondering up till met Meteor.
When there is a changes on mongoDB somehow(through Meteor or directly), Meteor understands the changes instantly and apply them. We could see it on publishing changes or observing(observe or observeChange) changes.
I guess that, Meteor could understand it by tailing mongoDB logs as the best solution that I have ever seen suggests. But this assumption also make me ask that, Meteor can run with a mongoDB running on different host and if the way that meteor knows MongoDB changes instantly is tailing logs, how could Meteor tails logs of mongoDB running on different machine(different host) and handle changes? Tailing on different host requires painful things and I think Meteor does not follow this way.
I think tailing logs is not my answer because of this question.
I am curious about this knowledge. Cause, I think that, if I have it, I could use it on my other works without Meteor.
So, how could really Meteor knows mongoDB changes instantly? And I wanna ask once again; what would be the best way to know about mongoDB changes instantly?
Thank You!