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From Abhay Kulkarni <akulka...@hortonworks.com>
Subject Re: Review Request 73363: RANGER-3291: NPE in BasePlugin if the first policy download contains no policies and no policy-deltas
Date Thu, 20 May 2021 21:03:58 GMT

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(Updated May 20, 2021, 9:03 p.m.)

Review request for ranger, Madhan Neethiraj, Mahesh Bandal, Ramesh Mani, Sailaja Polavarapu,
and Velmurugan Periasamy.


Ensure that policyVersion is set correctly in the default service policies.

Bugs: RANGER-3291

Repository: ranger


This issue is seen only if incremental policy downloads are enabled. If the first ever policy
download request made by the service returns no policies or policy-deltas (because ranger
repository does not contain any policies), then the policy-engine's value remains null. This
causes any subsequent incremental downloads to fail with NPE.

The fix is if the policy-engine does not require any update after policy download, then ensure
that it is initialized with default-service-policies.

Diffs (updated)

  agents-common/src/main/java/org/apache/ranger/plugin/service/RangerBasePlugin.java 0aab80945

  security-admin/src/main/java/org/apache/ranger/rest/ServiceREST.java 2369f4193 

Diff: https://reviews.apache.org/r/73363/diff/2/

Changes: https://reviews.apache.org/r/73363/diff/1-2/


Passes all unit tests.


Abhay Kulkarni

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