I doubt about "a lot". Also, "already solve" does not mean "solve better" or even "good enough". It would be very interesting to see some in-depth comparisons

I doubt about "a lot". Also, "already solve" does not mean "solve better" or even "good enough". It would be very interesting to see some in-depth comparisons with already-existing open source technology (like Hadoop, Hive, Iceberg, ZooKeeper) to get a sense of when and where YT could be more effective.