jzhuge opened a new pull request #549: Add Spark custom Kryo registrator URL: https://github.com/apache/incubator-iceberg/pull/549 Kryo can't handle guava ImmutableList and ImmutableMap. This commit add a Spark custom Kryo registrator for these classes used by GenericDataFile. Unit test `TestKryoSerialization ` adapted from the one in #546. A downstream project works fine after adding this Spark conf: ``` spark.kryo.registrator org.apache.iceberg.spark.SparkKryoRegistrator ``` Fixes #446. This PR replaces #546 that may be merged first before the release.
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