Deduplicate locally executed path mapped spawns #22556
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fmeum wants to merge 14 commits intobazelbuild:masterfrom
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Deduplicate locally executed path mapped spawns #22556fmeum wants to merge 14 commits intobazelbuild:masterfrom
fmeum wants to merge 14 commits intobazelbuild:masterfrom
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src/main/java/com/google/devtools/build/lib/remote/RemoteExecutionService.java
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When path mapping is enabled, different `Spawn`s in the same build can have identical `RemoteAction.ActionKey`s and can thus provide remote cache hits for each other. However, cache hits are only possible after the first local execution has concluded and uploaded its result to the cache. To avoid unnecessary duplication of local work, the first `Spawn` for each `RemoteAction.ActionKey` is tracked until its results have been uploaded and all other concurrently scheduled `Spawn`s wait for it and then copy over its local outputs. Fixes bazelbuild#21043 Closes bazelbuild#22556. PiperOrigin-RevId: 655097996 Change-Id: I4368f9210c67a306775164d252aae122d8b46f9b
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When path mapping is enabled, different `Spawn`s in the same build can have identical `RemoteAction.ActionKey`s and can thus provide remote cache hits for each other. However, cache hits are only possible after the first local execution has concluded and uploaded its result to the cache. To avoid unnecessary duplication of local work, the first `Spawn` for each `RemoteAction.ActionKey` is tracked until its results have been uploaded and all other concurrently scheduled `Spawn`s wait for it and then copy over its local outputs. Fixes #21043 Closes #22556. PiperOrigin-RevId: 655097996 Change-Id: I4368f9210c67a306775164d252aae122d8b46f9b Closes #23060
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Cherry-picks the following changes to implement output reuse: * Deduplicate locally executed path mapped spawns (#22556) * Fix local execution deduplication to work with optional outputs (#23296) * Force synchronous upload and reuse of possibly modified spawn outputs (#23382) * Add support for in-memory outputs to output reuse (#23422) Fixes #23377 Fixes #23444 Fixes #23457
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When path mapping is enabled, different
Spawns in the same build can have identicalRemoteAction.ActionKeys and can thus provide remote cache hits for each other. However, cache hits are only possible after the first local execution has concluded and uploaded its result to the cache.To avoid unnecessary duplication of local work, the first
Spawnfor eachRemoteAction.ActionKeyis tracked until its results have been uploaded and all other concurrently scheduledSpawns wait for it and then copy over its local outputs.Fixes #21043