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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/21317/
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(Updated May 12, 2014, 10:49 a.m.)
Review request for Ambari and Vitalyi Brodetskyi.
Bugs: AMBARI-5729
https://issues.apache.org/jira/browse/AMBARI-5729
Repository: ambari
Description (updated)
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Yarn package params.py file references to `nodemanager_principal_name` and
`nodemanager_keytab` properties. There are 3 issues over here:
1. Ideally, Ambari agent should not access and so not even refer to any
service principal name.
2. If required, Ambari agent should use yarn-site properties to fetch service
principal name and keytab path instead of using global properties.
3. In the resourcemanager.py decomission action, Yarn user kinit's using
nodemanager principal. Decommission action is always executed on
resourcemanager host and so we should atleast use resource manager principal
(as it is guaranteed to be on that host). **As of now in a secure cluster if
NodeManager is not present on ResourceManager host then NodeManager
decomissioning won't work (due to unavailability of NodeManager keytab)**
Also ambari-agent **does not kinit before executing DataNode decommission
command**. If an API request for decommissioning is made after hdfs user
kerberos ticket has expired then the request will fail due to kerberos
exception.
Diffs
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ambari-server/src/main/resources/stacks/HDP/2.0.6/services/HDFS/package/scripts/hdfs_namenode.py
e7ed33b
ambari-server/src/main/resources/stacks/HDP/2.0.6/services/HDFS/package/scripts/params.py
7bc8ca7
ambari-server/src/main/resources/stacks/HDP/2.0.6/services/YARN/package/scripts/params.py
065467c
ambari-server/src/main/resources/stacks/HDP/2.0.6/services/YARN/package/scripts/resourcemanager.py
6e6b34f
Diff: https://reviews.apache.org/r/21317/diff/
Testing
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mvn clean test
Thanks,
Andrew Onischuk
