kudu insert errors

[sky]

Hi,all
    I am using kudu python API to insert  data to kudu cluster, but a lot of 
data and too many columns would lead to the errors:             
kudu.errors.KuduBadStatus: Incomplete: not enough mutation buffer space 
remaining for operation: required additional 1146 when 7339290 of 7340032 
already used
   or
   write RPC to ip:port  timed out after 5.000s (SENT)
   Why?