The * is to be use like that GRAB User [*, friends]
Because if I just do GRAB User [friends], I only get friends
So I would of need to specify all of them like GRAB User [name, age,
email, .., friends]
Now instead of create a context with the number of file to parse and
check every x millisecond if it is complete, I use work group. For each
file, I spawn a thread in the group and then I call wg.wait()
Got an error that I could find for a while. It was when parsing a lot of
files.
Turn out it was the Thread Pool or something because if I run on 1 core,
it's ok.
Different thing in this commit, I just want to freeze a state that
benchmark work.
Before I was parsing all files, getting the max index then parsing from
0 to the max.
Byt now that I delete empty files, I need to parse only existing one.
