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Ensure increasing version timestamps when writing new object versions #543

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lx merged 6 commits from increasing-timestamps into main 2023-10-24 10:07:17 +00:00
Conversation 0 Commits 6 Files changed 3 +14 -7
2 changed files with 14 additions and 7 deletions
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Showing only changes of commit 8686cfd0b1 - Show all commits

7
src/api/s3/multipart.rs
View file

@ -30,10 +30,13 @@ pub async fn handle_create_multipart_upload(
req: &Request<Body>,
bucket_name: &str,
bucket_id: Uuid,
key: &str,
key: &String,
) -> Result<Response<Body>, Error> {
let existing_object = garage.object_table.get(&bucket_id, &key).await?;
let upload_id = gen_uuid();
let timestamp = now_msec();
let timestamp = next_timestamp(&existing_object);
let headers = get_headers(req.headers())?;
// Create object in object table

14
src/api/s3/put.rs
View file

@ -86,11 +86,7 @@ pub(crate) async fn save_stream<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
// Generate identity of new version
let version_uuid = gen_uuid();
let version_timestamp = existing_object
.as_ref()
.and_then(|obj| obj.versions().iter().map(|v| v.timestamp).max())
.map(|t| std::cmp::max(t + 1, now_msec()))
.unwrap_or_else(now_msec);
let version_timestamp = next_timestamp(&existing_object);
// If body is small enough, store it directly in the object table
// as "inline data". We can then return immediately.
@ -532,3 +528,11 @@ pub(crate) fn get_headers(headers: &HeaderMap<HeaderValue>) -> Result<ObjectVers
other,
})
}
pub(crate) fn next_timestamp(existing_object: &Option<Object>) -> u64 {
existing_object
.as_ref()
.and_then(|obj| obj.versions().iter().map(|v| v.timestamp).max())
.map(|t| std::cmp::max(t + 1, now_msec()))
.unwrap_or_else(now_msec)
}