platoneko opened a new pull request, #38808:
URL: https://github.com/apache/doris/pull/38808
## Proposed changes
In path v1, the segment file path is
"data/${shard_id}/${tablet_id}/${rowset_id}/${seg_id}.dat", which means that
segment files of different rowsets can have the same file name (e.g. "0.dat").
However, the initial file cache key is based on the file name, which will lead
to cache key collisions. Additionally, to maintain the generality of
`CachedRemoteFileReader`, we should not assume that all files accessed by
`CachedRemoteFileReader` have globally unique file names. Therefore, it is
necessary to use the full path as the cache key.
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