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From "Devender Yadav (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-4398) SYSTEM ERROR: IllegalStateException: Memory was leaked by query
Date Thu, 31 Mar 2016 10:28:25 GMT

    [ https://issues.apache.org/jira/browse/DRILL-4398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15219714#comment-15219714
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Devender Yadav  commented on DRILL-4398:
----------------------------------------

Observed similar issue with SQL Server. 

Query: select t1.num_tiny, t2.num_small from mssql.dbo.`test01` t1 join mssql.dbo.`test02`
t2 on t1.num_int = t2.num_int;

Error: SYSTEM ERROR: IllegalStateException: Memory was leaked by query. Memory leaked: (73728)
Allocator(op:0:0:3:JdbcSubScan) 1000000/73728/569344/10000000000 (res/actual/peak/limit)


I want to add one more observation. 

If I create a different plugin with same configuration 

Say SQL Server plugin name is mssql. I created mssql1 with same configuration and modified
query with mssql1 plugin name on 2nd table. 

select t1.num_tiny, t2.num_small from mssql.dbo.`test01` t1 join mssql1.dbo.`test02` t2 on
t1.num_int = t2.num_int;

This query returned expected output successfully.

> SYSTEM ERROR: IllegalStateException: Memory was leaked by query
> ---------------------------------------------------------------
>
>                 Key: DRILL-4398
>                 URL: https://issues.apache.org/jira/browse/DRILL-4398
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - JDBC
>    Affects Versions: 1.5.0
>            Reporter: N Campbell
>            Assignee: Taras Supyk
>
> Several queries fail with memory leaked errors
> select tjoin2.rnum, tjoin1.c1, tjoin2.c1 as c1j2, tjoin2.c2 as c2j2 from postgres.public.tjoin1
full outer join postgres.public.tjoin2 on tjoin1.c1 = tjoin2.c1
> select tjoin1.rnum, tjoin1.c1, tjoin2.c1 as c1j2, tjoin2.c2 from postgres.public.tjoin1,
lateral ( select tjoin2.c1, tjoin2.c2 from postgres.public.tjoin2 where tjoin1.c1=tjoin2.c1)
tjoin2
> SYSTEM ERROR: IllegalStateException: Memory was leaked by query. Memory leaked: (40960)
> Allocator(op:0:0:3:JdbcSubScan) 1000000/40960/135168/10000000000 (res/actual/peak/limit)
> create table TJOIN1 (RNUM integer   not null , C1 integer, C2 integer);
> insert into TJOIN1 (RNUM, C1, C2) values ( 0, 10, 15);
> insert into TJOIN1 (RNUM, C1, C2) values ( 1, 20, 25);
> insert into TJOIN1 (RNUM, C1, C2) values ( 2, NULL, 50);
> create table TJOIN2 (RNUM integer   not null , C1 integer, C2 char(2));
> insert into TJOIN2 (RNUM, C1, C2) values ( 0, 10, 'BB');
> insert into TJOIN2 (RNUM, C1, C2) values ( 1, 15, 'DD');
> insert into TJOIN2 (RNUM, C1, C2) values ( 2, NULL, 'EE');
> insert into TJOIN2 (RNUM, C1, C2) values ( 3, 10, 'FF');



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