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Table of Contents

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  • FileSetProperties.setUseExisting(true) (or DATA_USE_EXISTING / "data.use.existing") to reuse an existing location and Hive table. The dataset will assume that it does not own the existing data in that location and Hive table, and therefore, when you delete or truncate the dataset, the data will not be deleted. 
  • FileSetProperties.setPossessExisting(true) (or DATA_POSSESS_EXISTING / "data.possess.existing") to assume ownership an existing location and Hive table. The dataset will assume that it owns the existing data in that location and Hive table, and therefore, when you delete or truncate the dataset, all data will be deleted, including the previously existing data and Hive partitions.  

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Additionally you might want to enable CDAP authorization. For details on how to enable authorization in CDAP and manage privileges please refer to our documentation here: http://docs.cask.co/cdap/current/en/admin-manual/security/authorization.html?highlight=authorization


Note:

Please note that this above cluster configuration is not a comprehensive guide for enabling authorization and/or impersonation on Hadoop cluster. You might need to add/remove configuration depending on your environment.

Operational APIs

Creating Namespace

Code Block
titlecreating namespace from cli
create namespace testns principal rsinha/appimpmn18192-1000.dev.continuuity.net@CONTINUUITY.NET group-name deployers keytab-URI /etc/security/keytabs/rsinha.keytab

 

 

Loading Artifacts

Code Block
titleloading artifact from cli
load artifact SportResults-4.1.0-SNAPSHOT.jar

 

 

Creating application from existing artifact

Code Block
titlecreating application REST API
curl -v -X PUT http://hostname.net:11015/v3/namespaces/{namespace-id}/apps/{app-id} -d '{"artifact":{"name":"{artifact-name}","version":"{artifact-version}","scope":"USER"},"principal":"someuser/somehost.net@SOMEKDC.NET"}' -H "Authorization: Bearer your_access_token"

 

 

Creating stream with owner

Code Block
titlecreating stream REST API
curl -X PUT -v http://somehost.net:11015/v3/namespaces/{namespace-id}/streams/{stream-name} -d '{ "ttl": 1, "principal": "someuser/somehost.net@SOMEKDC.NET" }' -H "Authorization: Bearer your_access_token"