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From "Michael Brown (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IMPALA-5080) test_java_udfs: OutOfMemoryError: PermGen space
Date Fri, 17 Mar 2017 17:28:41 GMT

    [ https://issues.apache.org/jira/browse/IMPALA-5080?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15930343#comment-15930343
] 

Michael Brown commented on IMPALA-5080:
---------------------------------------

Hmm, see also IMPALA-5088.

> test_java_udfs: OutOfMemoryError: PermGen space
> -----------------------------------------------
>
>                 Key: IMPALA-5080
>                 URL: https://issues.apache.org/jira/browse/IMPALA-5080
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Frontend
>    Affects Versions: Impala 2.9.0
>            Reporter: Michael Brown
>            Assignee: Alexander Behm
>            Priority: Blocker
>
> There was a Java OOM related to PermGen space in a release-mode UDF test. Googling, it
seems this is a memory area for Java, and that one gets around it by increasing limits or
other tweaks.
> The UDF code hasn't changed in a while. Was there a recent change that used up too much
memory, and as a side-effect this test can fail? Have we slowly been approaching this limit
all along?
> end-to-end traceback:
> {noformat}
>  TestUdfExecution.test_java_udfs[exec_option: {'disable_codegen': True, 'exec_single_node_rows_threshold':
100, 'enable_expr_rewrites': True} | table_format: text/none]
> query_test/test_udfs.py:309: in test_java_udfs
>     self.run_test_case('QueryTest/java-udf', vector, use_db=unique_database)
> common/impala_test_suite.py:359: in run_test_case
>     result = self.__execute_query(target_impalad_client, query, user=user)
> common/impala_test_suite.py:567: in __execute_query
>     return impalad_client.execute(query, user=user)
> common/impala_connection.py:160: in execute
>     return self.__beeswax_client.execute(sql_stmt, user=user)
> beeswax/impala_beeswax.py:173: in execute
>     handle = self.__execute_query(query_string.strip(), user=user)
> beeswax/impala_beeswax.py:339: in __execute_query
>     self.wait_for_completion(handle)
> beeswax/impala_beeswax.py:359: in wait_for_completion
>     raise ImpalaBeeswaxException("Query aborted:" + error_log, None)
> E   ImpalaBeeswaxException: ImpalaBeeswaxException:
> E    Query aborted:
> E   OutOfMemoryError: PermGen space
> {noformat}
> {noformat}
> select * from
> (select max(int_col) from functional.alltypesagg
>  where identity(bool_col) union all
> (select max(int_col) from functional.alltypesagg
>  where identity(tinyint_col) > 1 union all
> (select max(int_col) from functional.alltypesagg
>  where identity(smallint_col) > 1 union all
> (select max(int_col) from functional.alltypesagg
>  where identity(int_col) > 1 union all
> (select max(int_col) from functional.alltypesagg
>  where identity(bigint_col) > 1 union all
> (select max(int_col) from functional.alltypesagg
>  where identity(float_col) > 1.0 union all
> (select max(int_col) from functional.alltypesagg
>  where identity(double_col) > 1.0 union all
> (select max(int_col) from functional.alltypesagg
>  where identity(string_col) > '1' union all
> (select max(int_col) from functional.alltypesagg
>  where not identity(bool_col) union all
> (select max(int_col) from functional.alltypesagg
>  where identity(tinyint_col) > 2 union all
> (select max(int_col) from functional.alltypesagg
>  where identity(smallint_col) > 2 union all
> (select max(int_col) from functional.alltypesagg
>  where identity(int_col) > 2 union all
> (select max(int_col) from functional.alltypesagg
>  where identity(bigint_col) > 2 union all
> (select max(int_col) from functional.alltypesagg
>  where identity(float_col) > 2.0 union all
> (select max(int_col) from functional.alltypesagg
>  where identity(double_col) > 2.0 union all
> (select max(int_col) from functional.alltypesagg
>  where identity(string_col) > '2'
> )))))))))))))))) v;
> {noformat}
> from the impalad.log:
> {noformat}
> I0316 10:57:33.113581  6342 jni-util.cc:176] java.lang.OutOfMemoryError: PermGen space
>     at java.lang.ClassLoader.defineClass1(Native Method)
>     at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
>     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
>     at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
>     at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
>     at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
>     at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
>     at java.security.AccessController.doPrivileged(Native Method)
>     at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
>     at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
>     at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789)
>     at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
>     at java.lang.Class.forName0(Native Method)
>     at java.lang.Class.forName(Class.java:274)
>     at org.apache.impala.hive.executor.UdfExecutor.init(UdfExecutor.java:584)
>     at org.apache.impala.hive.executor.UdfExecutor.<init>(UdfExecutor.java:218)
> {noformat}



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