kecookier opened a new issue, #5074:
URL: https://github.com/apache/incubator-gluten/issues/5074
### Backend
VL (Velox)
### Bug description
Based on my tests, some bugs have caused this issue:
1. Currently, `VeloxBackend::initUdf()` is called before
`UDFResolver.loadAndGetFunctionDescriptions()`, so the `udflibPath` cannot be
resolved on the driver.
2. When using `SparkFiles.get(f)` to retrieve a local file, it does not work
on the driver in `yarn-client` or `yarn-cluster` mode.
This is because the `--files/--archives` options set different Spark
configuration keys, which are determined by the type of cluster manager and the
deploy mode. If we use `--master=yarn`, then the Spark configuration keys
`spark.yarn.dist.files`/`spark.yarn.dist.archives` will be set, and the file
will be distributed to the working directory on all nodes(both driver and
executors). Otherwise, `spark.files`/`spark.archives` will be set, and the
files are added by `SparkContext.addFile`, which can be accessed by
`SparkFiles.get()`.
The Spark code that processes the --files and --archives arguments can be
found at:
https://github.com/apache/spark/blob/25ecde948bebf01d2cb1e160516238e1d949ffdb/core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala#L653
### Spark version
Spark-3.2.x
### Spark configurations
_No response_
### System information
_No response_
### Relevant logs
_No response_
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