HDFS-15937. Reduce memory used during datanode layout upgrade#2838

Merged

sodonnel merged 3 commits intoapache:trunkfrom

sodonnel:HDFS-15937-dn-upgrade-memory

Apr 8, 2021

Commits on Mar 30, 2021

HDFS-15937. Reduce memory used during datanode layout upgrade
S O'Donnell
committed
Remove unused method parameter
S O'Donnell
committed

Commits on Mar 31, 2021

Use a.blockFile() in duplicate compare
S O'Donnell
committed