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https://issues.apache.org/jira/browse/HIVE-17195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16106795#comment-16106795
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Sankar Hariappan commented on HIVE-17195:
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explainuser_3.q is a flaky test case. No test failures due to this patch.
> Long chain of tasks created by REPL LOAD shouldn't cause stack corruption.
> --------------------------------------------------------------------------
>
> Key: HIVE-17195
> URL: https://issues.apache.org/jira/browse/HIVE-17195
> Project: Hive
> Issue Type: Sub-task
> Components: HiveServer2, repl
> Affects Versions: 2.1.0
> Reporter: Sankar Hariappan
> Assignee: Sankar Hariappan
> Labels: DAG, DR, Executor, replication
> Fix For: 3.0.0
>
> Attachments: HIVE-17195.01.patch, HIVE-17195.02.patch
>
>
> Currently, long chain REPL LOAD tasks lead to huge recursive calls when try
> to traverse the DAG.
> For example, getMRTasks, getTezTasks, getSparkTasks and iterateTasks methods
> run recursively to traverse the DAG.
> Need to modify this traversal logic to reduce stack usage.
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