Dedupe load_bytes_with calls to a remote Store (Cherry-pick of #15901)
#15915
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As described in pantsbuild#15524: `remote::ByteStore::load_bytes_with` calls are not deduped currently, meaning that if multiple consumers identify a `Digest` which is missing from the local store, they might concurrently fetch it from the remote store. This is primarily an issue with `--remote-cache-eager-fetch=false`, as the laziness means that all consumers of a process output might consider whether to download it simultaneously (rather than the output always being downloaded before the process is called complete). Fixes pantsbuild#15524. [ci skip-build-wheels]
tdyas
approved these changes
Jun 24, 2022
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As described in #15524:
remote::ByteStore::load_bytes_withcalls are not deduped currently, meaning that if multiple consumers identify aDigestwhich is missing from the local store, they might concurrently fetch it from the remote store.This is primarily an issue with
--remote-cache-eager-fetch=false, as the laziness means that all consumers of a process output might consider whether to download it simultaneously (rather than the output always being downloaded before the process is called complete).Fixes #15524.
[ci skip-build-wheels]