Github user oliviertoupin commented on a diff in the pull request:
https://github.com/apache/spark/pull/205#discussion_r22562649
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlSerializer.scala
---
@@ -0,0 +1,73 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.sql
+package execution
+
+import java.nio.ByteBuffer
+
+import com.esotericsoftware.kryo.io.{Input, Output}
+import com.esotericsoftware.kryo.{Serializer, Kryo}
+
+import org.apache.spark.{SparkEnv, SparkConf}
+import org.apache.spark.serializer.KryoSerializer
+import org.apache.spark.util.MutablePair
+
+class SparkSqlSerializer(conf: SparkConf) extends KryoSerializer(conf) {
+ override def newKryo(): Kryo = {
+ val kryo = new Kryo()
+ kryo.setRegistrationRequired(false)
+ kryo.register(classOf[MutablePair[_, _]])
+ kryo.register(classOf[Array[Any]])
+
kryo.register(classOf[org.apache.spark.sql.catalyst.expressions.GenericRow])
+
kryo.register(classOf[org.apache.spark.sql.catalyst.expressions.GenericMutableRow])
+ kryo.register(classOf[scala.collection.mutable.ArrayBuffer[_]])
+ kryo.register(classOf[scala.math.BigDecimal], new BigDecimalSerializer)
+ kryo.setReferences(false)
--- End diff --
Why did you add setReferences to false? Is there a requirement for it? Why
don't you use the value specified in the configuration?
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