stevenzwu commented on code in PR #10926:
URL: https://github.com/apache/iceberg/pull/10926#discussion_r1714643866
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core/src/main/java/org/apache/iceberg/hadoop/HadoopFileIO.java:
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@@ -63,7 +63,11 @@ public class HadoopFileIO implements HadoopConfigurable,
DelegateFileIO {
* <p>{@link Configuration Hadoop configuration} must be set through {@link
* HadoopFileIO#setConf(Configuration)}
*/
- public HadoopFileIO() {}
+ public HadoopFileIO() {
+ // Create a default hadoopConf as it is required for the object to be
valid.
+ // E.g. newInputFile would throw NPE with hadoopConf.get() otherwise.
+ this.hadoopConf = new SerializableConfiguration(new Configuration())::get;
Review Comment:
FileIOParser doesn't serialize and deserialize the Hadoop configuration. the
deserialized io object is not valid because `hadoopConf` is null. NPE would be
throw if `newInputFile` is called on deserialized object.
not sure if we want to change `FileIOParser` to serialize Hadoop
`Configuration` object or not. Regardless, I feel this change seems reasonable,
as this class requires `hadoopConf` to not be null.
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