I have Ambari Version 220.127.116.11 with 4 Nodes. 1 master and 3 slave.
In HDFS config property I have set
Block replication = 3
dfs.replication.max = 3 (Default value was 50)
If I did not set dfs.replication.max to 3 I was getting some under replicated blocks. With dfs.replication.max = 3, there was no under replicated blocks.
Now the Issue Part.
I have another old hadoop system (hadoop 1.2.1) with 10 nodes. I want to copy the data from the old hadoop system to HDP using 'distcp'. But when I try to copy I keep on getting error as 'Requested replication 10 exceeds maximum 3'.
Why is this error generated when try to use distcp.