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From "Alejandro Fernandez" <afernan...@hortonworks.com>
Subject Re: Review Request 28246: ADDITIONAL FIX: Falcon lineage needs changes to startup.properties
Date Wed, 19 Nov 2014 19:56:40 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/28246/
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(Updated Nov. 19, 2014, 7:56 p.m.)


Review request for Ambari, Jaimin Jetly, Sid Wagle, and Yusaku Sako.


Bugs: AMBARI-8379
    https://issues.apache.org/jira/browse/AMBARI-8379


Repository: ambari


Description
-------

This is an additional fix for a patch that has already been committed, described below.


Summary of changes needed and implications

changes in falcon/conf/startup.properties:

1) For Falcon lineage to work below changes are needed on Ambari deployed configs for Falcon
Implications : Lineage feature of Falcon is blocked without these changes

MetadataMappingService is required for lineage:
```
*.application.services=org.apache.falcon.security.AuthenticationInitializationService,\
                        org.apache.falcon.workflow.WorkflowJobEndNotificationService,\
                        org.apache.falcon.service.ProcessSubscriberService,\
                        org.apache.falcon.entity.store.ConfigurationStore,\
                        org.apache.falcon.rerun.service.RetryService,\
			org.apache.falcon.rerun.service.LateRunService,\
		        org.apache.falcon.service.LogCleanupService,\
                        org.apache.falcon.metadata.MetadataMappingService
```

```
######### Graph Database Properties #########
# Graph implementation
*.falcon.graph.blueprints.graph=com.thinkaurelius.titan.core.TitanFactory

# Graph Storage
*.falcon.graph.storage.directory=/grid/0/data/lineage/graphdb
*.falcon.graph.storage.backend=berkeleyje
*.falcon.graph.serialize.path=/grid/0/data/lineage
*.falcon.graph.preserve.history=false
```

The properties that need a directory in the local file system should detect a mount point
that is available on the Falcon server, and the python scripts need to crease these directories
when the Falcon service is configured.

The folder permission are,
owner:falcon user
group:hadoop
permissions:775


Diffs
-----

  ambari-web/app/models/service_config.js 5527ed1 

Diff: https://reviews.apache.org/r/28246/diff/


Testing
-------

Symlinked the web folder and created a cluster using the Install Wizard to verify the additional
fix.


Thanks,

Alejandro Fernandez


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