Move Role to another host

[#1]

I have 2 host in my hadoop cluster. But one host using default Cloudera Manger Installer get more Roles. So, Memory usage from that host is high (3.6 GiB / 3.9 GiB). Can I move some roles from that host to another host that already in the cluster? If i can, What roles that i can move to another host?

Thanks

[#2]

Hi @Fawze,

Great, It's Work for me. So update my Default replication factor : 1. This is temporary because i need to upgrade my server memory.

Missing replicas looks normal and HDFS status is good Health

Status: HEALTHY
 Total size:    530731534 B
 Total dirs:    2846
 Total files:    662
 Total symlinks:        0
 Total blocks (validated):    658 (avg. block size 806582 B)
 Minimally replicated blocks:    658 (100.0 %)
 Over-replicated blocks:    0 (0.0 %)
 Under-replicated blocks:    0 (0.0 %)
 Mis-replicated blocks:        0 (0.0 %)
 Default replication factor:    1
 Average block replication:    1.0
 Corrupt blocks:        0
 Missing replicas:        0 (0.0 %)
 Number of data-nodes:        1
 Number of racks:        1
FSCK ended at Tue Apr 18 14:57:18 UTC 2017 in 573 milliseconds


The filesystem under path '/' is HEALTHY

Thanks Fawze.

[#3]

Fawze

You said that any role can be moved. How is that done for ones like "HDFS Balancer" or JobHistory servers? These roles can't be added/moved via CM that I can see.