NikitaMatskevich opened a new issue, #13518:
URL: https://github.com/apache/iceberg/issues/13518
### Feature Request / Improvement
Azure SDK does not log enough info on eventual errors/timeouts. Also the
error that is thrown is often not an instance of DataLakeStorageException. It
might as well be a Netty error or some java timeout exception instead.
Simple example to understand the scope of the issue. When trying to read a
non-existing file in Azure, I receive the following error:
```
com.azure.storage.blob.models.BlobStorageException: Status code 404, "<?xml
version="1.0" encoding="utf-8"?><Error><Code>BlobNotFound</Code><Message>The
specified blob does not exist.
RequestId:xxxx
Time:2025-07-10T16:32:34.6666078Z</Message></Error>"
at
com.azure.storage.blob.implementation.util.ModelHelper.mapToBlobStorageException(ModelHelper.java:660)
at reactor.core.publisher.Mono.lambda$onErrorMap$30(Mono.java:3797)
```
This error is wrapped by an Azure-native exception, but it is not logged
anywhere.
The same error will be thrown when trying to delete a non-existing file.
Another example, when there is a slight version mismatch between azure
storage client libs and Netty:
```
io.netty.channel.StacklessClosedChannelException
java.lang.RuntimeException: io.netty.channel.StacklessClosedChannelException
at
com.azure.storage.common.implementation.StorageImplUtils.sendRequest(StorageImplUtils.java:511)
at
com.azure.storage.file.datalake.DataLakePathClient.deleteWithResponse(DataLakePathClient.java:651)
at
com.azure.storage.file.datalake.DataLakeFileClient.deleteWithResponse(DataLakeFileClient.java:224)
at
com.azure.storage.file.datalake.DataLakeFileClient.delete(DataLakeFileClient.java:192)
at
org.apache.iceberg.azure.adlsv2.ADLSFileIO.deleteFile(ADLSFileIO.java:92)
```
This is an error occurring in deleteFile, but it is not a
DataLakeStorageException.
### Query engine
None
### Willingness to contribute
- [x] I can contribute this improvement/feature independently
- [ ] I would be willing to contribute this improvement/feature with
guidance from the Iceberg community
- [ ] I cannot contribute this improvement/feature at this time
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