priyeshkaratha opened a new pull request, #11181:
URL: https://github.com/apache/ozone/pull/11181
## What changes were proposed in this pull request?
Problem:
The Recon API endpoint /api/v1/keys/open/mpu/summary was returning zero
sizes for split-schema multipart uploads (MPUs) because event handlers were not
tracking part sizes from the multipartPartsTable. Only legacy-schema MPU sizes
(embedded in multipartInfoTable values) were tracked by events. Split-schema
MPU sizes were only calculated during periodic reprocess, causing newly created
split-schema MPUs to show zero sizes until the next reprocess run.
Root Cause:
When split-schema MPU support was added (HDDS-14666), the
MultipartInfoInsightHandler event methods were updated to use
forEachLegacyPart(), which returned early for split-schema MPUs without
processing any sizes. Event handlers had no mechanism to access
multipartPartsTable to fetch split-schema part sizes incrementally.
Solution:
1. Extended OmTableHandler interface to pass OMMetadataManager to event
handlers, enabling access to multipartPartsTable during event processing.
2. Added new applySplitSchemaPartSizes() method to
MultipartInfoInsightHandler that:
- Queries multipartPartsTable for all parts of a split-schema MPU
- Calculates unreplicated and replicated sizes for each part
- Updates size maps on PUT/DELETE/UPDATE events immediately
3. Integrated split-schema size tracking into PUT, DELETE, and UPDATE event
handlers.
4. Updated DeletedKeysInsightHandler and OpenKeysInsightHandler to accept
the new OMMetadataManager parameter (no-op for these handlers).
## What is the link to the Apache JIRA
HDDS-16363
## How was this patch tested?
- Added new test testProcessForSplitSchemaMPU() to verify split-schema MPU
sizes are calculated immediately on PUT/DELETE events without waiting for
reprocess.
- Test creates split-schema MPU with 3 parts of 100 bytes each, verifies:
* PUT event results in correct sizes: 300 bytes unreplicated, 900 bytes
replicated
* DELETE event resets sizes to 0
- All 14 existing tests continue to pass.
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