Hive set Hive. Lzo. Paralle. Read. Index. The thread = 1000;

set hive.lzo.paralle.read.index.thread = 1000;

If the source table is LZO and there are many small files, add this to speed up the process.

View the default values:

set hive.lzo.paralle.read.index.thread ;

– hive. Lzo. Paralle. Read. Index. The thread is undefined, didn’t set the default values

end