After I sucessfully runned " INSERT OVERWRITE TABLE tokenized_access_logs SELECT * FROM intermediate_access_logs; " in Hive, I tried to run  invalidate metadata; in impala, it shows error  timed out (code THRIFTSOCKET):None   I can see those two external tables have been successfully created on Hive.I could also see those two tables on impala but when I clicked it it shows "error load columns"   Any ideas?? Thank you ... View more