Details
-
Sub-task
-
Status: Resolved
-
Major
-
Resolution: Fixed
-
None
-
None
-
None
Description
In some environments, the entire container subnet may not be used exclusively by containers (ie the YARN nodemanager host IPs may also be part of the larger subnet).
As a result, the reverse lookup zones created by the YARN Registry DNS server may not match those created on the forwarders.
For example:
Network: 172.27.0.0
Subnet: 255.255.248.0
Hosts:
0.27.172.in-addr.arpa
1.27.172.in-addr.arpa
2.27.172.in-addr.arpa
3.27.172.in-addr.arpa
Containers
4.27.172.in-addr.arpa
5.27.172.in-addr.arpa
6.27.172.in-addr.arpa
7.27.172.in-addr.arpa
YARN Registry DNS only allows for creating (as the total IP count is greater than 256):
27.172.in-addr.arpa
Provide configuration to further subdivide the subnets.