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https://reviews.apache.org/r/48817/
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Review request for Ambari, Alejandro Fernandez, Nate Cole, and Vitalyi 
Brodetskyi.


Bugs: AMBARI-17284
    https://issues.apache.org/jira/browse/AMBARI-17284


Repository: ambari


Description
-------

During an upgrade from HDP 2.3/2.4 to HDP 2.5, the following error is seen:

```
resource_management.core.exceptions.Fail: Execution of 'cp --remove-destination 
/var/lib/ambari-agent/tmp/mysql-connector-java.jar 
/usr/hdp/current/hive-server2-hive2/lib/mysql-connector-java.jar' returned 1. 
cp: cannot create regular file 
`/usr/hdp/current/hive-server2-hive2/lib/mysql-connector-java.jar': No such 
file or directory
```

This is because with HDP 2.5, Hive introduced a new component called 
{{hive-server2-hive2}}:

```
/usr/hdp/current/hive-metastore -> /usr/hdp/2.5.0.0-1234/hive
/usr/hdp/current/hive-server2 -> /usr/hdp/2.5.0.0-1234/hive
/usr/hdp/current/hive-server2-hive2 -> /usr/hdp/2.5.0.0-1234/hive2
```

Normally, this would be fine. However, we must use the {{schematool}} from 
{{hive2}} and not {{hive}}:

```
/usr/hdp/2.5.0.0-1234/hive2/bin/schematool
```

Since Metastore is uggraded first, it's trying to write the custom JDBC 
connector to 
`/usr/hdp/current/hive-server2-hive2/lib}}`

But since this component doesn't exist or hasn't been `hdp-select`'d yet, it 
fails.


Diffs
-----

  
ambari-server/src/main/resources/common-services/HIVE/0.12.0.2.0/package/scripts/hive.py
 ef0fd6b 
  
ambari-server/src/main/resources/common-services/HIVE/0.12.0.2.0/package/scripts/hive_metastore.py
 55cddd6 
  
ambari-server/src/main/resources/common-services/HIVE/0.12.0.2.0/package/scripts/hive_service.py
 0a3d921 
  
ambari-server/src/main/resources/common-services/HIVE/0.12.0.2.0/package/scripts/params_linux.py
 81207d6 

Diff: https://reviews.apache.org/r/48817/diff/


Testing
-------

PENDING


Thanks,

Jonathan Hurley

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