peterxcli opened a new pull request, #10023:
URL: https://github.com/apache/ozone/pull/10023
## What changes were proposed in this pull request?
OM Create Phase
Validation is performed within the validateAndUpdateCache method to ensure
atomicity within the Ratis state machine application.
1. Locking: The OM acquires the write lock for the bucket/key.
2. Key Lookup: Retrieve the existing key from KeyTable.
3. Validation:
- Key Not Found: If the key does not exist, throw KEY_NOT_FOUND (maps to
S3 412).
- No ETag Metadata: If the existing key (e.g., uploaded via OFS) does
not have an ETag property, throw ETAG_NOT_AVAILABLE (maps to S3 412). The
precondition cannot be evaluated, so we must fail rather than silently proceed.
- ETag Mismatch: Compare existingKey.ETag with expectedETag. If they do
not match, throw ETAG_MISMATCH (maps to S3 412).
4. Extract Generation: If ETag matches, extract existingKey.updateID.
5. Create Open Key: Create open key entry with expectedDataGeneration =
existingKey.updateID.
Sorry I forgot to follow the step 4 and 5 in my previous PR
https://github.com/apache/ozone/pull/9815 ...
## What is the link to the Apache JIRA
[issues.apache.org/jira/browse/HDDS-13919](https://issues.apache.org/jira/browse/HDDS-13919)
## How was this patch tested?
existing tests
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