Hi! I have unbalanced disks on one of my nodes after a disk failure with disk replacements.
http://wiki.apache.org/hadoop/FAQ#On_an_individual_data_node.2C_how_do_you_balance_the_blocks_on_the_disk.3F has a solution, but it starts with "Take down HDFS". Is that really necessary - shouldn't taking down just that datanode, moving around the blocks, then start the datanode be good enough, or will that mess up some datastructure in the namenode? Thanks, \EF -- Erik Forsberg <forsb...@opera.com> Developer, Opera Software - http://www.opera.com/