zy-kkk opened a new pull request, #55741:
URL: https://github.com/apache/doris/pull/55741
## Issue
Fixed `NoSuchMethodException` when accessing S3-based Iceberg tables:
- `Cannot create org.apache.iceberg.aws.ApacheHttpClientConfigurations`
- Missing `ApacheHttpClientConfigurations.create` method
## Root Cause
The `iceberg-metadata-scanner` module was missing the `iceberg-aws`
dependency, causing runtime failures when accessing S3 storage.
## Solution
Added `iceberg-aws` dependency to `iceberg-metadata-scanner/pom.xml`
## Why This Issue Is Not Always Reproducible
This is a **classpath race condition** that only occurs under specific
circumstances:
1. **Environment Dependency**: Only affects deployments where
`preload-extensions` module is not loaded or `iceberg-aws` classes are not in
runtime classpath
2. **ClassLoader Isolation**: Error depends on module loading order:
- ✅ `preload-extensions` loads first → classes available → no error
- ❌ `iceberg-metadata-scanner` loads first → classes missing → error
occurs
3. **Storage Backend Dependency**: Only triggers when accessing S3-based
Iceberg tables (not HDFS/local files)
4. **Runtime Loading Order**: Depends on which module's ClassLoader gets
`ApacheHttpClientConfigurations` first
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