wei liu 1fae8f5ae3
enhance: Optimize FlushAll performance for multi-table scenarios (#43339)
Replace multiple per-table flush RPC calls with single FlushAll RPC to
improve performance in multi-table scenarios.
issue: #43338
- Implement server-side FlushAll request processing in
DataCoord/MixCoord
- Add flushAllTask to handle unified flush operations across all tables
- Replace proxy-side per-table flush iteration with single RPC call
- Support both streaming and non-streaming service execution paths
- Add comprehensive unit tests for new FlushAll implementation

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Signed-off-by: Wei Liu <wei.liu@zilliz.com>
2025-07-30 15:37:37 +08:00
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