issue: #19095,#29655,#31718
- Change `ListWithPrefix` to `WalkWithPrefix` of OOS into a pipeline
mode.
- File garbage collection is performed in other goroutine.
- Segment Index Recycle clean index file too.
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Signed-off-by: chyezh <chyezh@outlook.com>
see also: https://github.com/milvus-io/milvus/issues/28509
Currently Minio latency monitoring for get operation only collects the
duration of getting object (which just returns an io.Reader and does not
really read from minio), this pr will correct this behavior.
Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
