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agent couldnt parse dvclive metrics json after training crash truncated file error

Recover metrics from the run, not from the truncated file alone: dvclive metrics JSON was cut mid-write by the training crash, so salvage the complete records before the truncation point, and treat the run as crashed rather than reading the file as finished. Use when an agent workflow reading dvclive metrics from comp…

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agent hallucinating early stopping epoch not in logs caused report failure error

Take the epoch from the training log or not at all: the agent reported an early stopping epoch that appears in no log, so extract the stop epoch from the recorded metric history, and where the history is absent, report the stop as unrecorded. Use when an agent workflow reporting training outcomes including early stopp…

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Kedro experiment tracking failed error "DataSetError: dataset metrics not configured"

Register the metrics as a Kedro dataset or log them through the experiment tracking hooks Kedro expects: Kedro experiment tracking only records datasets declared for tracking, so add the metrics dataset to the catalog with the tracking handler, or use the MLflow integration dataset type. Use when a Kedro project using…

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experiment metrics logged twice after training job retry duplicates run history error

Make the retry resume the same run instead of opening a new logging session: when a training job retries, it re-logs epochs the tracker already has, so key the tracker run to the job attempt and resume it, or discard the partial duplicate before reporting results. Use when a tracked training job running on retrying in…

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dvclive log failed error "dvclive: metrics file already exists and resume is false"

Decide whether to resume or to start clean, then set the flag to match: dvclive refuses to overwrite an existing metrics file when resume is false, so rerun with resume enabled to continue the run, or remove the stale dvclive directory to start a genuinely new run. Use when a dvclive instrumented training script rerun…

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checkpoint marked best has worse validation loss after metric direction flipped error

Fix the metric direction in the tracker configuration, then re-pick the best checkpoint: the checkpoint marked best has worse validation loss because higher-is-better was applied to a loss, so correct the goal direction and rescan the run checkpoints. Use when an experiment workflow using automatic best checkpoint sel…

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best run selection keeps picking shortest run because early stopped runs log fewer steps failure

Compare runs at equal training progress, not by their logged summaries: the selector picks the shortest run because early stopped runs carry fewer steps and their last or best metric is not comparable, so rank runs by metric at a fixed step budget or require a minimum step count. Use when an experiment workflow select…

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training run shows green while tracker recorded NaN for every epoch failure

Fail the run on NaN instead of recording it as healthy: the tracker logged NaN for every epoch while the run shows green, so add a metric sanity check that marks the run failed when the primary metric is NaN, and fix the training instability that produced it. Use when a tracked training workflow where run status comes…

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Aim UI failed error "Sequence not found for metric context"

Query the sequence with the context it was logged under: Aim sequences are identified by name plus context, so a lookup without the exact context, such as the subset or the metric context values, reports the sequence as not found even though it was logged. Use when an Aim repository where metrics are logged with conte…

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run comparison failed error 'KeyError: metric val_accuracy not found in run history'

The comparison failed because the metric name differs between runs, not because the runs are incomparable: list the metrics actually recorded on each run, find the name the older run used, such as val_accuracy versus validation accuracy across framework versions, and compare under an explicit name mapping. Use when co…

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