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https://issues.apache.org/jira/browse/HIVE-2871?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HIVE-2871:
------------------------------
Attachment: HIVE-2871.D2331.2.patch
kevinwilfong updated the revision "HIVE-2871 [jira] Add a new hook to run at
the beginning and end of the Driver.run method".
Reviewers: JIRA, njain
Expanded comment in HiveConf, and added entry in hive-default.xml.template
REVISION DETAIL
https://reviews.facebook.net/D2331
AFFECTED FILES
conf/hive-default.xml.template
common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
ql/src/test/results/clientpositive/hook_order.q.out
ql/src/test/org/apache/hadoop/hive/ql/hooks/VerifyHooksRunInOrder.java
ql/src/test/queries/clientpositive/hook_order.q
ql/src/java/org/apache/hadoop/hive/ql/HiveDriverRunHook.java
ql/src/java/org/apache/hadoop/hive/ql/HiveDriverRunHookContextImpl.java
ql/src/java/org/apache/hadoop/hive/ql/HiveDriverRunHookContext.java
ql/src/java/org/apache/hadoop/hive/ql/Driver.java
> Add a new hook to run at the beginning and end of the Driver.run method
> -----------------------------------------------------------------------
>
> Key: HIVE-2871
> URL: https://issues.apache.org/jira/browse/HIVE-2871
> Project: Hive
> Issue Type: Improvement
> Reporter: Kevin Wilfong
> Assignee: Kevin Wilfong
> Attachments: HIVE-2871.D2331.1.patch, HIVE-2871.D2331.2.patch
>
>
> Driver.run is the highest level method which all queries go through, whether
> they come from Hive Server, the CLI, or any other entry. We also do not have
> any hooks before the compilation method is called, and having hooks in
> Driver.run would provide this. Having hooks in Driver.run will allow, for
> example, being able to overwrite config values used throughout query
> processing, including compilation, and at the other end, cleaning up any
> resources/logging any final values just before returning to the user.
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