Hello everybody, One of my disks on a datanode brake down few months ago. I changed it to a new one but my HDFS won't balance datas between disks. So, i have 7 disks with 80-90% of their capacity and 1 disk with only 15-20% of his capacity. I tried couple things, such as balancing HDFS or delete every small files. Furthermore, this difference between disks created a huge amount of blocks in my cluster.  (The datanode has 1,043,627 blocks. Warning threshold : 0) Do you have any ideas to fix this ?  Thanks, Oscar ... View more