Offload large files (4 MB+) to R2
维护者通常 1 天内回复
@aron-cf 已经在做这个了。
开始于 2026年10月8日。
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描述
vfs_* tables in Durable Object SQLite hold all file content today, so a workspace is capped at the Durable Object storage limit (about 10 GB). R2 mounts are read-only, which means a writable file can't live outside that cap.
@cloudflare/shell in cloudflare/agents had a hybrid model. It kept small files inline in SQLite and moved files over a size threshold to R2. We're deprecating Shell in favour of Computer, and some agents (media, datasets, build outputs) will need large writable files.
Proposal
- Add an optional R2 bucket to
WorkspaceOptions, along with a size threshold. The default would be 4 MB. - When a write reaches the threshold, the content goes to R2.
vfs_nodeskeeps the metadata and a pointer to the R2 key. The key is scoped by workspace, using the session id or DO id. - Reads through
workspace.fs, the worker backends, and the container sync path resolve the pointer without the caller knowing about it. A read of an R2-backed file returns a stream, so the bytes never pass through SQLite. rm, overwrite, andgc()delete the R2 object they replace.- Without a bucket, behaviour stays as it is today.
Open questions
- Should content-addressed blob dedup extend to R2 objects, or should R2 hold one object per file?
- Container sync could pull large R2-backed files on demand instead of copying them into the container's in-memory VFS. Is that in scope here?
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cloudflare/computer 的其他 Issue
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Feature: add workspace.inspect() and the workspace_summary tool可能已有人在做 @aron-cf 于 1 天前认领。 未关闭enhancement
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Sync planning scans the full pending change set before yielding; repeated Durable Object CPU-limit failures可能已有人在做 @aron-cf 于 2 天前认领。 未关闭bug
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enhancement
难度 4/5 3-5 天 新手友好度 30/100
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Always run the "next" computerd workflow on push to the `release` branch可能已有人在做 @aron-cf 于 3 天前认领。 未关闭bug
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