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https://issues.apache.org/jira/browse/HIVE-19469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HIVE-19469 started by Rajkumar Singh.
---------------------------------------------
> HiveServer2: SqlStdAuth take too much time while doing
> checkFileAccessWithImpersonation if the table location has too many files/dirs
> -------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-19469
> URL: https://issues.apache.org/jira/browse/HIVE-19469
> Project: Hive
> Issue Type: Task
> Components: HiveServer2
> Affects Versions: 2.1.0
> Reporter: Rajkumar Singh
> Assignee: Rajkumar Singh
> Priority: Minor
>
> HiveServer2 doAuthorization call takes too much time while doing
> checkFileAccessWithImpersonation if the table location has too many
> files/dirs which increases the query compilation time.
> {code}
> at
> org.apache.hadoop.hive.shims.Hadoop23Shims.checkFileAccess(Hadoop23Shims.java:1006)
> at
> org.apache.hadoop.hive.common.FileUtils.checkFileAccessWithImpersonation(FileUtils.java:378)
> at
> org.apache.hadoop.hive.common.FileUtils.isActionPermittedForFileHierarchy(FileUtils.java:417)
> at
> org.apache.hadoop.hive.common.FileUtils.isActionPermittedForFileHierarchy(FileUtils.java:431)
> at
> org.apache.hadoop.hive.common.FileUtils.isActionPermittedForFileHierarchy(FileUtils.java:431)
> at
> org.apache.hadoop.hive.common.FileUtils.isActionPermittedForFileHierarchy(FileUtils.java:431)
> at
> org.apache.hadoop.hive.common.FileUtils.isActionPermittedForFileHierarchy(FileUtils.java:431)
> at
> org.apache.hadoop.hive.common.FileUtils.isActionPermittedForFileHierarchy(FileUtils.java:431)
> at
> org.apache.ranger.authorization.hive.authorizer.RangerHiveAuthorizer.isURIAccessAllowed(RangerHiveAuthorizer.java:752)
> {code}
> the improvement we can make here is to parallelize
> checkFileAccessWithImpersonation call.
>
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