Daryn Sharp created HADOOP-9789:
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Summary: Support server advertised kerberos principals
Key: HADOOP-9789
URL: https://issues.apache.org/jira/browse/HADOOP-9789
Project: Hadoop Common
Issue Type: New Feature
Components: ipc, security
Affects Versions: 2.0.0-alpha, 3.0.0
Reporter: Daryn Sharp
Assignee: Daryn Sharp
Priority: Critical
The RPC client currently constructs the kerberos principal based on the a
config value, usually with an _HOST substitution. This means the service
principal must match the hostname the client is using to connect. This causes
problems:
* Prevents using HA with IP failover when the servers have distinct principals
from the failover hostname
* Prevents clients from being able to access a service bound to multiple
interfaces. Only the interface that matches the server's principal may be used.
The client should be able to use the SASL advertised principal (HADOOP-9698),
with appropriate safeguards, to acquire the correct service ticket.
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