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Posted to issues@hive.apache.org by "Di Zhu (JIRA)" <ji...@apache.org> on 2018/04/22 07:22:00 UTC
[jira] [Updated] (HIVE-19266) Use UDFs in Hive-On-Spark complains
Unable to find class Exception regarding kryo
[ https://issues.apache.org/jira/browse/HIVE-19266?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Di Zhu updated HIVE-19266:
--------------------------
Description:
For a SQL with UDF as below in Hive:
{code:java}
set hive.execution.engine=spark;
add jar viewfs:///path_to_the_jar/aaa.jar;
create temporary function func_name AS 'com.abc.ClassName';
select func_name(col_a) from table_name limit 100;{code}
it complains the following error.
{code:java}
ERROR : Job failed with java.lang.ClassNotFoundException: com.abc.ClassName
org.apache.hive.com.esotericsoftware.kryo.KryoException: Unable to find class: com.abc.ClassName
Serialization trace:
genericUDF (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc)
colList (org.apache.hadoop.hive.ql.plan.SelectDesc)
conf (org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator)
childOperators (org.apache.hadoop.hive.ql.exec.vector.VectorFilterOperator)
childOperators (org.apache.hadoop.hive.ql.exec.TableScanOperator)
aliasToWork (org.apache.hadoop.hive.ql.plan.MapWork)
left (org.apache.commons.lang3.tuple.ImmutablePair)
edgeProperties (org.apache.hadoop.hive.ql.plan.SparkWork)
at org.apache.hive.com.esotericsoftware.kryo.util.DefaultClassResolver.readName(DefaultClassResolver.java:156)
at org.apache.hive.com.esotericsoftware.kryo.util.DefaultClassResolver.readClass(DefaultClassResolver.java:133)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClass(Kryo.java:670)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClass(SerializationUtilities.java:181)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:118)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:134)
at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:40)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:134)
at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:40)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:134)
at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:40)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
at org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:161)
at org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:39)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
at org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:153)
at org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:39)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:686)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:206)
at org.apache.hadoop.hive.ql.exec.spark.KryoSerializer.deserialize(KryoSerializer.java:60)
at org.apache.hadoop.hive.ql.exec.spark.RemoteHiveSparkClient$JobStatusJob.call(RemoteHiveSparkClient.java:329)
at org.apache.hive.spark.client.RemoteDriver$JobWrapper.call(RemoteDriver.java:358)
at org.apache.hive.spark.client.RemoteDriver$JobWrapper.call(RemoteDriver.java:323)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: com.abc.ClassName
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.apache.hive.com.esotericsoftware.kryo.util.DefaultClassResolver.readName(DefaultClassResolver.java:154)
... 63 more
{code}
and if I switch it back to mr by changing merely `set hive.execution.engine=mr;`, it works fine again. Any suggestions? Thanks.
Spark version: 2.0.3
Hive version: 2.3.2
was:
For a SQL with UDF as below in Hive:
```
set hive.execution.engine=spark;
add jar viewfs:///path_to_the_jar/aaa.jar;
create temporary function func_name AS 'com.abc.ClassName';
select func_name(col_a) from table_name limit 100;
```
it complains the following error.
```
ERROR : Job failed with java.lang.ClassNotFoundException: com.abc.ClassName
org.apache.hive.com.esotericsoftware.kryo.KryoException: Unable to find class: com.abc.ClassName
Serialization trace:
genericUDF (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc)
colList (org.apache.hadoop.hive.ql.plan.SelectDesc)
conf (org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator)
childOperators (org.apache.hadoop.hive.ql.exec.vector.VectorFilterOperator)
childOperators (org.apache.hadoop.hive.ql.exec.TableScanOperator)
aliasToWork (org.apache.hadoop.hive.ql.plan.MapWork)
left (org.apache.commons.lang3.tuple.ImmutablePair)
edgeProperties (org.apache.hadoop.hive.ql.plan.SparkWork)
at org.apache.hive.com.esotericsoftware.kryo.util.DefaultClassResolver.readName(DefaultClassResolver.java:156)
at org.apache.hive.com.esotericsoftware.kryo.util.DefaultClassResolver.readClass(DefaultClassResolver.java:133)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClass(Kryo.java:670)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClass(SerializationUtilities.java:181)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:118)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:134)
at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:40)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:134)
at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:40)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:134)
at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:40)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
at org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:161)
at org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:39)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
at org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:153)
at org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:39)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:686)
at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:206)
at org.apache.hadoop.hive.ql.exec.spark.KryoSerializer.deserialize(KryoSerializer.java:60)
at org.apache.hadoop.hive.ql.exec.spark.RemoteHiveSparkClient$JobStatusJob.call(RemoteHiveSparkClient.java:329)
at org.apache.hive.spark.client.RemoteDriver$JobWrapper.call(RemoteDriver.java:358)
at org.apache.hive.spark.client.RemoteDriver$JobWrapper.call(RemoteDriver.java:323)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: com.abc.ClassName
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.apache.hive.com.esotericsoftware.kryo.util.DefaultClassResolver.readName(DefaultClassResolver.java:154)
... 63 more
```
and if I switch it back to mr by changing merely `set hive.execution.engine=mr;`, it works fine again. Any suggestions? Thanks.
Spark version: 2.0.3
Hive version: 2.3.2
> Use UDFs in Hive-On-Spark complains Unable to find class Exception regarding kryo
> ---------------------------------------------------------------------------------
>
> Key: HIVE-19266
> URL: https://issues.apache.org/jira/browse/HIVE-19266
> Project: Hive
> Issue Type: Bug
> Components: Spark
> Affects Versions: 2.3.2
> Reporter: Di Zhu
> Priority: Major
>
> For a SQL with UDF as below in Hive:
> {code:java}
> set hive.execution.engine=spark;
> add jar viewfs:///path_to_the_jar/aaa.jar;
> create temporary function func_name AS 'com.abc.ClassName';
> select func_name(col_a) from table_name limit 100;{code}
> it complains the following error.
> {code:java}
> ERROR : Job failed with java.lang.ClassNotFoundException: com.abc.ClassName
> org.apache.hive.com.esotericsoftware.kryo.KryoException: Unable to find class: com.abc.ClassName
> Serialization trace:
> genericUDF (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc)
> colList (org.apache.hadoop.hive.ql.plan.SelectDesc)
> conf (org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator)
> childOperators (org.apache.hadoop.hive.ql.exec.vector.VectorFilterOperator)
> childOperators (org.apache.hadoop.hive.ql.exec.TableScanOperator)
> aliasToWork (org.apache.hadoop.hive.ql.plan.MapWork)
> left (org.apache.commons.lang3.tuple.ImmutablePair)
> edgeProperties (org.apache.hadoop.hive.ql.plan.SparkWork)
> at org.apache.hive.com.esotericsoftware.kryo.util.DefaultClassResolver.readName(DefaultClassResolver.java:156)
> at org.apache.hive.com.esotericsoftware.kryo.util.DefaultClassResolver.readClass(DefaultClassResolver.java:133)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClass(Kryo.java:670)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClass(SerializationUtilities.java:181)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:118)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:134)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:40)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:134)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:40)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:134)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:40)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:161)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:39)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:790)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readClassAndObject(SerializationUtilities.java:176)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:153)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:39)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:708)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:214)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
> at org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:551)
> at org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:686)
> at org.apache.hadoop.hive.ql.exec.SerializationUtilities$KryoWithHooks.readObject(SerializationUtilities.java:206)
> at org.apache.hadoop.hive.ql.exec.spark.KryoSerializer.deserialize(KryoSerializer.java:60)
> at org.apache.hadoop.hive.ql.exec.spark.RemoteHiveSparkClient$JobStatusJob.call(RemoteHiveSparkClient.java:329)
> at org.apache.hive.spark.client.RemoteDriver$JobWrapper.call(RemoteDriver.java:358)
> at org.apache.hive.spark.client.RemoteDriver$JobWrapper.call(RemoteDriver.java:323)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.ClassNotFoundException: com.abc.ClassName
> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:348)
> at org.apache.hive.com.esotericsoftware.kryo.util.DefaultClassResolver.readName(DefaultClassResolver.java:154)
> ... 63 more
> {code}
> and if I switch it back to mr by changing merely `set hive.execution.engine=mr;`, it works fine again. Any suggestions? Thanks.
>
> Spark version: 2.0.3
> Hive version: 2.3.2
>
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