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From "Yongzhi Chen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-10453) HS2 leaking open file descriptors when using UDFs
Date Thu, 23 Apr 2015 00:54:38 GMT
Yongzhi Chen created HIVE-10453:
-----------------------------------

             Summary: 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


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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