Review Request 34474: Installing Service After Upgrading Stacks Fails Due To Broken Symlink

[Dmitro Lisnichenko <dl...@hortonworks.com>]

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https://reviews.apache.org/r/34474/
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Review request for Ambari, Alejandro Fernandez, Jonathan Hurley, and Nate Cole.


Bugs: AMBARI-11269
    https://issues.apache.org/jira/browse/AMBARI-11269


Repository: ambari


Description
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The problem was in the sequence

- install() command is executed. It installs packages and tries to create /usr/hdp/current/hbase-client/conf , but /usr/hdp/current/hbase-client is (yet) a broken symlink
- script.py#set_version() should be launched after install, but is not due to previous exception


Diffs
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  ambari-agent/src/test/python/resource_management/TestScript.py 5f21c7a 
  ambari-common/src/main/python/resource_management/libraries/script/script.py f9eda81 

Diff: https://reviews.apache.org/r/34474/diff/


Testing
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Checked on live cluster, symlinks were created for every component installed


[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Ambari Views ...................................... SUCCESS [2.906s]
[INFO] Ambari Metrics Common ............................. SUCCESS [0.991s]
[INFO] Ambari Server ..................................... SUCCESS [38.608s]
[INFO] Ambari Agent ...................................... SUCCESS [22.107s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1:05.509s
[INFO] Finished at: Wed May 20 16:31:36 EEST 2015
[INFO] Final Memory: 53M/432M
[INFO] ------------------------------------------------------------------------


Thanks,

Dmitro Lisnichenko