jackye1995 commented on code in PR #6655:
URL: https://github.com/apache/iceberg/pull/6655#discussion_r1085900059
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spark/v3.3/spark/src/main/java/org/apache/iceberg/spark/SparkReadConf.java:
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@@ -67,11 +69,15 @@ public boolean caseSensitive() {
}
public boolean localityEnabled() {
- if (table.io() instanceof HadoopFileIO) {
- HadoopInputFile file = (HadoopInputFile)
table.io().newInputFile(table.location());
- String scheme = file.getFileSystem().getScheme();
- boolean defaultValue = LOCALITY_WHITELIST_FS.contains(scheme);
- return PropertyUtil.propertyAsBoolean(readOptions,
SparkReadOptions.LOCALITY, defaultValue);
+ if (table.io() instanceof HadoopFileIO || table.io() instanceof
ResolvingFileIO) {
Review Comment:
I am a bit concerned for people using `ResolvingFileIO` with this approach,
previously we will only create an input file to check locality if it's
`HadoopFileIO`, but now if the user is using `RevolvingFileIO` this operation
will be done for every single file even if it is not a HadoopFileIO for the
specific location.
I am wondering if we should make `ResolvingFileIO.implFromLocation` a public
method so we can know the FileIO used for the location without the need to open
input file.
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