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https://issues.apache.org/jira/browse/HIVE-10453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14522670#comment-14522670
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Yongzhi Chen commented on HIVE-10453:
-------------------------------------
The spark and tez test failures are related to some classloaders used in
Registry.registerToSessionRegistry method
can be used even session is closed which is very strange. Make more changes to
separate client session based classloaders from the rest.
> HS2 leaking open file descriptors when using UDFs
> -------------------------------------------------
>
> Key: HIVE-10453
> URL: https://issues.apache.org/jira/browse/HIVE-10453
> Project: Hive
> Issue Type: Bug
> Reporter: Yongzhi Chen
> Assignee: Yongzhi Chen
> Attachments: HIVE-10453.1.patch
>
>
> 1. create a custom function by
> CREATE FUNCTION myfunc AS 'someudfclass' using jar 'hdfs:///tmp/myudf.jar';
> 2. Create a simple jdbc client, just do
> connect,
> run simple query which using the function such as:
> select myfunc(col1) from sometable
> 3. Disconnect.
> Check open file for HiveServer2 by:
> lsof -p HSProcID | grep myudf.jar
> You will see the leak as:
> {noformat}
> java 28718 ychen txt REG 1,4 741 212977666
> /private/var/folders/6p/7_njf13d6h144wldzbbsfpz80000gp/T/1bfe3de0-ac63-4eba-a725-6a9840f1f8d5_resources/myudf.jar
> java 28718 ychen 330r REG 1,4 741 212977666
> /private/var/folders/6p/7_njf13d6h144wldzbbsfpz80000gp/T/1bfe3de0-ac63-4eba-a725-6a9840f1f8d5_resources/myudf.jar
> {noformat}
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