Patrick Wendell created SPARK-6087:
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Summary: Provide actionable exception if Kryo buffer is not large
enough
Key: SPARK-6087
URL: https://issues.apache.org/jira/browse/SPARK-6087
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 1.3.0
Reporter: Patrick Wendell
Priority: Critical
Right now if you don't have a large enough Kryo buffer, you get a really
confusing exception. I noticed this when using Kryo to serialize broadcasted
tables in Spark SQL. We should catch-then-rethrow this in the KryoSerializer,
wrapping it in a message that suggests increasing the Kryo buffer size
configuration variable.
{code}
com.esotericsoftware.kryo.KryoException: Buffer overflow. Available: 0,
required: 3
Serialization trace:
value (org.apache.spark.sql.catalyst.expressions.MutableAny)
values (org.apache.spark.sql.catalyst.expressions.SpecificMutableRow)
at com.esotericsoftware.kryo.io.Output.require(Output.java:138)
at com.esotericsoftware.kryo.io.Output.writeAscii_slow(Output.java:446)
at com.esotericsoftware.kryo.io.Output.writeString(Output.java:306)
at
com.esotericsoftware.kryo.serializers.DefaultSerializers$StringSerializer.write(DefaultSerializers.java:153)
at
com.esotericsoftware.kryo.serializers.DefaultSerializers$StringSerializer.write(DefaultSerializers.java:146)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:501)
at
com.esotericsoftware.kryo.serializers.FieldSerializer$ObjectField.write(FieldSerializer.java:564)
at
com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:213)
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:568)
at
com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.write(DefaultArraySerializers.java:318)
at
com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.write(DefaultArraySerializers.java:293)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:501)
at
com.esotericsoftware.kryo.serializers.FieldSerializer$ObjectField.write(FieldSerializer.java:564)
at
com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:213)
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:568)
at
com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.write(DefaultArraySerializers.java:318)
at
com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.write(DefaultArraySerializers.java:293)
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:568)
at
org.apache.spark.serializer.KryoSerializerInstance.serialize(KryoSerializer.scala:167)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:234)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
{code}
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