When deleting tables, sometimes the operation get stuck for hours with table status "UNKNOWN" shown in the monitor page. The only relevant logs I can find are similar to this:
[tableOps.CleanUp] DEBUG: Still waiting for table to be deleted: is locationState: is<<@(null,10.0.0.10:41000[43b1b039a081368],null) It happens to a few tables in our cluster and most of them are hosted by one tablet server, so I killed the tablet server to force the tablets to be reassigned to other servers. The tables got deleted successfully after that. I'm wondering what I should do to solve problems like this. Right now, we still have a bunch of tables with status "UNKNOWN". I'm wondering if I need to find the tablet servers hosting those tables and restart them. Btw, the swappiness in our cluster is set to 60 now instead of the recommended value 10. Thanks, Lin
