[jira] [Assigned] (RANGER-3472) The createPolicy() method is not thread safe. In another word, we can create policies with same resources when creating policies concurrently

["Pradeep Agrawal (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/RANGER-3472?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pradeep Agrawal reassigned RANGER-3472:
---------------------------------------

    Assignee: Pradeep Agrawal

> The createPolicy() method is not thread safe. In another word, we can create policies with same resources when creating policies concurrently
> ---------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: RANGER-3472
>                 URL: https://issues.apache.org/jira/browse/RANGER-3472
>             Project: Ranger
>          Issue Type: Bug
>          Components: Ranger
>    Affects Versions: 2.1.0
>            Reporter: Xuze Yang
>            Assignee: Pradeep Agrawal
>            Priority: Major
>
> In our production environment, we happen to find that two policies exist with the same resources.In this case, when we want to modify either policy, ranger doesn't allow this operation and throws message like "*Error Code : 3010 Another policy already exists for matching resource: policy-name=[hhh9], service=[default-Hdfs]*". 
> I go through the source code about create policy, find that the createPolicy() in class ServiceREST is not thread safe. When we create policies concurrently, we may create several policies with the same resources.



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