Spark-sql query got exception.Help

[李铖]

It is ok when I do query data from a small hdfs file.
But if the hdfs file is 152m,I got this exception.
I try this code
.'sc.setSystemProperty("spark.kryoserializer.buffer.mb",'256')'.error
still.

```
com.esotericsoftware.kryo.KryoException: Buffer overflow. Available: 0,
required: 39135
at com.esotericsoftware.kryo.io.Output.require(Output.java:138)
at com.esotericsoftware.kryo.io.Output.writeBytes(Output.java:220)
at com.esotericsoftware.kryo.io.Output.writeBytes(Output.java:206)
at
com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ByteArraySerializer.write(DefaultArraySerializers.java:29)
at


```