catcatmu opened a new issue, #5429:
URL: https://github.com/apache/opendal/issues/5429
### Describe the bug
S3 File uploads which call s3_initiate_multipart_upload() does not set
user_meta.
### Steps to Reproduce
1. Create a new S3 Operator opendal::services::S3::default()
2. Create a new writer:
```rust
let w = operator
.writer_with("/test")
.user_metadata(metadata)
.await;
```
3. Write out a large file, calling write several times, in the test a 1Gb
file was used
4. Open S3, the metadata will be missing
**Temporary workaround but uses more memory:**
If the chunk_size is increased to greater than the file size, the metadata
is set.
### Expected Behavior
The user metadata is set when a multi-part uploaded object is written
### Additional Context
Adding the following to s3_initiate_multipart_upload, seems to solve the
issue:
```rust
// Set user metadata headers.
if let Some(user_metadata) = args.user_metadata() {
for (key, value) in user_metadata {
req = req.header(format!("{X_AMZ_META_PREFIX}{key}"), value)
}
}
```
### Are you willing to submit a PR to fix this bug?
- [X] Yes, I would like to submit a PR.
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