Details
-
Bug
-
Status: Resolved
-
Blocker
-
Resolution: Fixed
-
Impala 2.9.0
-
ghx-label-4
Description
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:
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
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;
from the impalad.log:
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)