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https://issues.apache.org/jira/browse/HIVE-15076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15610260#comment-15610260
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Hive QA commented on HIVE-15076:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12835413/HIVE-15076.1.patch
{color:green}SUCCESS:{color} +1 due to 6 test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 4 failed/errored test(s), 10644 tests
executed
*Failed tests:*
{noformat}
org.apache.hive.beeline.TestBeelineArgParsing.testAddLocalJarWithoutAddDriverClazz[0]
(batchId=164)
org.apache.hive.beeline.TestBeelineArgParsing.testAddLocalJar[0] (batchId=164)
org.apache.hive.beeline.TestBeelineArgParsing.testAddLocalJar[1] (batchId=164)
org.apache.hive.hcatalog.pig.TestHCatLoaderComplexSchema.testMapNullKey[2]
(batchId=170)
{noformat}
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/1832/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/1832/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-1832/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 4 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12835413 - PreCommit-HIVE-Build
> Improve scalability of LDAP authentication provider group filter
> ----------------------------------------------------------------
>
> Key: HIVE-15076
> URL: https://issues.apache.org/jira/browse/HIVE-15076
> Project: Hive
> Issue Type: Improvement
> Components: Authentication
> Affects Versions: 2.1.0
> Reporter: Illya Yalovyy
> Assignee: Illya Yalovyy
> Attachments: HIVE-15076.1.patch
>
>
> Current implementation uses following algorithm:
> # For a given user find all groups that user is a member of. (A list of
> LDAP groups is constructed as a result of that request)
> # Match this list of groups with provided group filter.
>
> Time/Memory complexity of this approach is O(N) on client side, where N – is
> a number of groups the user has membership in. On a large directory (800+
> groups per user) we can observe up to 2x performance degradation and failures
> because of size of LDAP response (LDAP: error code 4 - Sizelimit Exceeded).
>
> Some Directory Services (Microsoft Active Directory for instance) provide a
> virtual attribute for User Object that contains a list of groups that user
> belongs to. This attribute can be used to quickly determine whether this user
> passes or fails the group filter.
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