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From "David Radley (JIRA)" <>
Subject [jira] [Commented] (ATLAS-2456) Implement tag propagation using relationships
Date Mon, 19 Feb 2018 10:08:00 GMT


David Radley commented on ATLAS-2456:

[] I have not had time to go through the code in a lot of detail. I
think it looks pretty good. I wanted to check how you handle the following situations:

1) If there is a classification that is applied to an entity with certain attributes defined,
and you decide to propagate the same classification to that entity, in this situation there
must be 2 classification instances - each with different property values. 

So how does the code handle the case when there are 2 instances of the same classification
with different property values that propagate to the same target entity.

2) I think the classifications defined in the open type GovernanceActionclassifications []
are going to be the key classifications around governance. There classifications are defined
by their enums- which have an implied low-high order.  So for example confifidentialityLevel
of sensitive is higher than internal. For point 1 scenario- we would want the higher value
to win.    

4) I think that any classification that is explicitly defined on an entity wins over propagated

5) Can you confirm that only one classification of a type is allowed for a given entity.

6) I assume that the entitytypes defined on a classificationdef will always constrain - so
classification and propagated classification (or their subtypes) can only ever classify entities
of those types (or their subtypes). 

7) I assume that a classification and subtypes of a classification could both be applied to
an entity. This could compromise the idea of one classification per entity. How do you see
this working or is this policed as invalid?  For example a Confidentiality classification
and its subclass could be applied to an entity. - each specifying different levels of confidentiality
- which one is effective?

> Implement tag propagation using relationships
> ---------------------------------------------
>                 Key: ATLAS-2456
>                 URL:
>             Project: Atlas
>          Issue Type: New Feature
>          Components:  atlas-core
>    Affects Versions: 1.0.0
>            Reporter: Sarath Subramanian
>            Assignee: Sarath Subramanian
>            Priority: Major
>             Fix For: 1.0.0
>         Attachments: TAG PROPAGATION IN ATLAS v.1.pdf, tag_propagation_rest_api
> {color:#172b4d}Scalable way to quickly and efficiently propagate tags for efficient searches
and tag based security. Likewise tags for derivative dataset should be inherited from the
parent. For example, if an entity is tagged "PII" then resulting entity created from a CTAS
operation should also be tagged "secret" to maintain the classification of the parent. In
the case where 2 or more datasets are aggregated the derivative dataset should be a union
of all parent tags.{color}

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