Michael Brown created IMPALA-5080:
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Summary: 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
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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