when a datanode is marked as DEAD by namenode, the blocks contained in that dead node becomes under-replicated, right? so will namenode fix that problem right away or will it wait for any period of time. If yes how long will it wait or what property controls the duration.
Created 01-29-2020 10:00 AM
After 10 minutes your node will have dead state and begin replication of data. You can change this parameter if required.
Created 02-07-2020 08:03 AM
Created 02-07-2020 08:34 AM
You need to add it in custom hdfs site: