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Opening book seems to be really laggy or inaccessible at the moment ?

Hi everyone,

Does anyone else have this problem ? When I load an analysis board and click on the book, then do any move, it just stays greyed out as if it was loading something and it seems to do so indefinitely.

If I’m the only one, can someone point out to me how I can fix this problem ?
Currently updating it. Should be back shortly.

Update: That didn't go as planned. Basic service is back, but there's a few rocky hours ahead ...
Apparently the problem has been fixed - thanks for your work!
It seems like the problem is fixed for me ? In any case thank you a lot @revoof , you rock
@revoof Was back to normal yesterday but currently back to the basic service, right ? Thanks a lot!
Oh, yeah, I should give an update here. Things weren't working out yesterday, so eventually I reverted to the previous version. I've been doing some preparation today, for another attempt tomorrow.

The goal is to offer a complete (rather than sampled) "Lichess" book, increasing the number of indexed games from 700 million to 4 billion games. Since we wanted to include all games from the top rating group, any sampling was biased. That means it was easy to draw incorrect conclusions when looking at statistics over multiple rating groups. Having more games also just makes it more likely that some rare position will have a few referenced games.
Starting the next attempt, now. Let's see how it goes this time ...
Better, but still not acceptable. Reverting now, and will try again later.
Next round ...

Update: Yay, I think it's working out this time! The queue for the personal opening explorer is a bit backed up because it's starting to index from scratch, but that should be back to normal soon as well.

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