[WIP]nydus-image: support chunk level deduplication between local images #956
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Add the dedup option to nydus-image to support block level deduplication between local images. A local database cas.db was introduced, which records all chunks saved locally. Then We can redirect the chunks to those that already exist locally to avoid duplicate downloads. There is still some work needs to be done, including: 1. Insert the on-demand downloaded chunk into the database to ensure that the database stores locally existing chunks. 2. Snapshotter's GC mechanism with the reference relationship of bootstrap after deduplication. Signed-off-by: Huang Jianan <[email protected]>
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@mofishzz , the title of this PR starts with "WIP" or "[WIP]", so skip testing for now. |
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xwb1136021767
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Aug 8, 2023
Original version from dragonflyoss#956. Signed-off-by: xwb1136021767 <[email protected]> Signed-off-by: mofishzz <[email protected]>
xwb1136021767
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Aug 9, 2023
Original version from dragonflyoss#956. Signed-off-by: xwb1136021767 <[email protected]> Signed-off-by: mofishzz <[email protected]>
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Add the dedup option to nydus-image to support block level deduplication between local images. A local database cas.db was introduced, which records all chunks saved locally. Then We can redirect the chunks to those that already exist locally to avoid duplicate downloads.
There is still some work needs to be done, including:
Signed-off-by: Huang Jianan [email protected]