yagagagaga opened a new pull request, #25312:
URL: https://github.com/apache/doris/pull/25312
## Proposed changes
When executing SQL
```sql
select bitmap_count(bitmap_union(uuid)) from hive_bitmap_table;
```
The following exceptions will occur:
```SQL
Caused by: java.lang.IllegalArgumentException: Unable to create serializer
"org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer" for
class: org.apache.doris.udf.BitmapCountUDF
at
org.apache.hive.com.esotericsoftware.kryo.factories.ReflectionSerializerFactory.makeSerializer(ReflectionSerializerFactory.java:67)
at
org.apache.hive.com.esotericsoftware.kryo.factories.ReflectionSerializerFactory.makeSerializer(ReflectionSerializerFactory.java:45)
at
org.apache.hive.com.esotericsoftware.kryo.Kryo.newDefaultSerializer(Kryo.java:380)
at
org.apache.hive.com.esotericsoftware.kryo.Kryo.getDefaultSerializer(Kryo.java:364)
at
org.apache.hive.com.esotericsoftware.kryo.util.DefaultClassResolver.registerImplicit(DefaultClassResolver.java:74)
at
org.apache.hive.com.esotericsoftware.kryo.Kryo.getRegistration(Kryo.java:490)
at
org.apache.hive.com.esotericsoftware.kryo.util.DefaultClassResolver.readName(DefaultClassResolver.java:166)
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$KryoWithHooks.readClass(SerializationUtilities.java:185)
at
org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:118)
... 48 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedConstructorAccessor3.newInstance(Unknown
Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
org.apache.hive.com.esotericsoftware.kryo.factories.ReflectionSerializerFactory.makeSerializer(ReflectionSerializerFactory.java:54)
... 58 more
Caused by: java.lang.NoClassDefFoundError: Lorg/apache/logging/log4j/Logger;
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
at java.lang.Class.getDeclaredFields(Class.java:1916)
at
org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.rebuildCachedFields(FieldSerializer.java:215)
at
org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.rebuildCachedFields(FieldSerializer.java:182)
at
org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.<init>(FieldSerializer.java:155)
... 62 more
Caused by: java.lang.ClassNotFoundException: org.apache.logging.log4j.Logger
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
... 68 more
```
This is because Kryo could not serialize `org.apache.logging.log4j.Logger`.
Therefore, I removed the reference of `Logger` from the code.
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