HIVE-17034: The spark tar for itests is downloaded every time if md5sum is not installed (Rui reviewed by Ashutosh)
HIVE-17034: The spark tar for itests is downloaded every time if md5sum is not installed (Rui reviewed by Ashutosh)

vineetgarg02/hive,anishek/hive,nishantmonu51/hive,alanfgates/hive,b-slim/hive,b-slim/hive,anishek/hive,anishek/hive,vineetgarg02/hive,sankarh/hive,b-slim/hive,alanfgates/hive,lirui-apache/hive,anishek/hive,nishantmonu51/hive,vineetgarg02/hive,vineetgarg02/hive,jcamachor/hive,jcamachor/hive,b-slim/hive,jcamachor/hive,jcamachor/hive,b-slim/hive,jcamachor/hive,nishantmonu51/hive,b-slim/hive,alanfgates/hive,b-slim/hive,sankarh/hive,lirui-apache/hive,sankarh/hive,anishek/hive,sankarh/hive,vineetgarg02/hive,lirui-apache/hive,lirui-apache/hive,anishek/hive,alanfgates/hive,jcamachor/hive,nishantmonu51/hive,sankarh/hive,jcamachor/hive,nishantmonu51/hive,lirui-apache/hive,nishantmonu51/hive,sankarh/hive,lirui-apache/hive,sankarh/hive,nishantmonu51/hive,anishek/hive,b-slim/hive,sankarh/hive,lirui-apache/hive,vineetgarg02/hive,alanfgates/hive,nishantmonu51/hive,anishek/hive,alanfgates/hive,b-slim/hive,sankarh/hive,alanfgates/hive,anishek/hive,nishantmonu51/hive,alanfgates/hive,alanfgates/hive,vineetgarg02/hive,jcamachor/hive,vineetgarg02/hive,lirui-apache/hive,jcamachor/hive,lirui-apache/hive,vineetgarg02/hive