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https://issues.apache.org/jira/browse/HDDS-15167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chu Cheng Li updated HDDS-15167:
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Summary: Broaden commit conflict detection for conditional writes (was:
Concurrent Conflict Detection for Conditional MPU Complete)
> Broaden commit conflict detection for conditional writes
> --------------------------------------------------------
>
> Key: HDDS-15167
> URL: https://issues.apache.org/jira/browse/HDDS-15167
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: OM, s3gateway
> Reporter: Chu Cheng Li
> Assignee: Chu Cheng Li
> Priority: Major
> Labels: pull-request-available
>
> If two or more independent clients send the exact same Complete Multipart
> Upload request at the same time, only one client should receive a successful
> response and the others should get a 409. That way, they know they must
> re-read the object, re-upload the parts if necessary, and then complete the
> MPU again using the latest ETag they observed.
> ref:
> [docs.aws.amazon.com/AmazonS3/latest/API/API_CompleteMultipartUpload.html|https://docs.aws.amazon.com/AmazonS3/latest/API/API_CompleteMultipartUpload.html]
> {quote}[If-Match|https://docs.aws.amazon.com/AmazonS3/latest/API/API_CompleteMultipartUpload.html#API_CompleteMultipartUpload_RequestSyntax]
> Uploads the object only if the ETag (entity tag) value provided during the
> WRITE operation matches the ETag of the object in S3. If the ETag values do
> not match, the operation returns a 412 Precondition Failed error.
> *If a conflicting operation occurs during the upload S3 returns a 409
> ConditionalRequestConflict response. On a 409 failure you should fetch the
> object's ETag, re-initiate the multipart upload with CreateMultipartUpload,
> and re-upload each part.*
> {quote}
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