feat: log metrics to human-readable JSONL files#2176
Draft
mikasenghaas wants to merge 1 commit intomainfrom
Draft
feat: log metrics to human-readable JSONL files#2176mikasenghaas wants to merge 1 commit intomainfrom
mikasenghaas wants to merge 1 commit intomainfrom
Conversation
W&B stores metrics in a binary protobuf format that isn't readable
locally. This adds a JSONL sidecar file so metrics can be inspected
by humans and agents without the W&B API.
Each process writes to its own file under {output_dir}/metrics/ to
avoid race conditions: in shared W&B mode the filename uses the
process label (e.g. trainer.jsonl, orchestrator.jsonl), otherwise
it defaults to metrics.jsonl.
Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
cat,jq,python json){output_dir}/metrics/to avoid race conditions: shared mode uses the process label (trainer.jsonl,orchestrator.jsonl), non-shared defaults tometrics.jsonlTested e2e with
examples/reverse_text/rl.toml(3 steps, offline mode, shared=false).🤖 Generated with Claude Code