Robert Kanter created OOZIE-2490:
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             Summary: Oozie can't set hadoop.security.token.service.use_ip
                 Key: OOZIE-2490
                 URL: https://issues.apache.org/jira/browse/OOZIE-2490
             Project: Oozie
          Issue Type: Bug
    Affects Versions: trunk
            Reporter: Robert Kanter
            Assignee: Robert Kanter
             Fix For: trunk


Currently, Oozie has no way of setting {{hadoop.security.token.service.use_ip}} 
to the non-default value, as explained in HADOOP-12954.  Once that is resolved, 
we should have Oozie set {{hadoop.security.token.service.use_ip}} on startup 
via the new method added by HADOOP-12954.  

{{hadoop.security.token.service.use_ip}} (default=true) is needed if your 
network is setup such that you need to use hostnames in delegation tokens 
instead of ip addresses.
e.g.
{noformat}
Kind: HDFS_DELEGATION_TOKEN, Service: 127.0.0.1:8020, Ident: 
(HDFS_DELEGATION_TOKEN token 7 for hive)
{noformat}
vs
{noformat}
Kind: HDFS_DELEGATION_TOKEN, Service: foo.bar.cloudera.com:8020, Ident: 
(HDFS_DELEGATION_TOKEN token 4 for hive)
{noformat}

Some notes:
- Ideally, {{hadoop.security.token.service.use_ip}} could be set on a 
per-cluster basis (because Oozie supports multiple clusters), however, like 
many of Hadoop's Security stuff, it's static so we can't.  I think we should 
have Oozie use the {{Configuration}} associated with the default NN/JT/RM when 
setting this.
- We'll have to use reflection to do this because HADOOP-12954 will add a new 
method and we can't guarantee the method is there.  If the method doesn't 
exist, there's no alternative to set {{hadoop.security.token.service.use_ip}}, 
so we'll just ignore it.



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