Shane Kumpf created YARN-5404:
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Summary: Add the ability to split reverse zone subnets
Key: YARN-5404
URL: https://issues.apache.org/jira/browse/YARN-5404
Project: Hadoop YARN
Issue Type: Sub-task
Reporter: Shane Kumpf
Assignee: Shane Kumpf
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.
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