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https://issues.apache.org/jira/browse/RANGER-2433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16846951#comment-16846951
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Velmurugan Periasamy commented on RANGER-2433:
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Looks similar to https://issues.apache.org/jira/browse/RANGER-2369
> Ranger base plugin `grant-<timestamp>` (the auto-generated grant name) may
> not be unique enough - Failing concurrent transactions
> ----------------------------------------------------------------------------------------------------------------------------------
>
> Key: RANGER-2433
> URL: https://issues.apache.org/jira/browse/RANGER-2433
> Project: Ranger
> Issue Type: Bug
> Components: plugins
> Reporter: Mahendra Korepu
> Priority: Major
>
> When running concurrent grant transactions - Ranger base plugin returns
> following error:
>
> {code:java}
> // ERROR: InternalException: HTTP 400 Error: Exception [EclipseLink-4002]
> (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd):
> org.eclipse.persistence.exceptions.DatabaseException
> Internal Exception: org.postgresql.util.PSQLException: ERROR: duplicate key
> value violates unique constraint "x_policy_uk_name_service_zone"
> Detail: Key (name, service, zone_id)=(grant-1557766372626, 4, 1) already
> exists.
> Error Code: 0
> Call: INSERT INTO x_policy (id, ADDED_BY_ID, CREATE_TIME, description, guid,
> is_audit_enabled, is_enabled, name, policy_options, policy_priority,
> policy_text, policy_type, resource_signature, service, UPDATE_TIME,
> UPD_BY_ID, version, zone_id) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?,
> ?, ?, ?, ?, ?)
> bind => [18 parameters bound]
> Query: InsertObjectQuery(XXPolicy [id=6438])
> Could not execute command: GRANT SELECT ON table db1.tbl1 TO GROUP usr_grp1
> Start, End, Duration: 20190513-095246/20190513-095252/6322.754
> {code}
> Recommendation : some sort of unique number or string need to be appended to
> policy to avoid race conditions.
>
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