> ## Documentation Index
> Fetch the complete documentation index at: https://docs.coreweave.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Logs

<Card title="Does logging block my training?" href="/support/models/articles/does-logging-block-my-training" arrow="true" horizontal>
  "Is the logging function lazy? I don't want to depend on the network to send results to your servers while executing loc ...
</Card>

<Card title="How can I overwrite the logs from previous steps?" href="/support/models/articles/how-can-i-overwrite-the-logs-from-previo" arrow="true" horizontal>
  To overwrite logs from previous steps, use forking and rewind. Run forking is in Public Preview for Multi-tenant Cloud a ...
</Card>

<Card title="How do I download the console log file from a run?" href="/support/models/articles/how-do-i-download-the-console-log-file-from-a-run" arrow="true" horizontal>
  Weights & Biases stores your script's stdout and stderr as output.log (or multipart chunks under logs/). Where to retrie ...
</Card>

<Card title="How do I log a list of values?" href="/support/models/articles/how-do-i-log-a-list-of-values" arrow="true" horizontal>
  You can log a list of values, such as per-step losses, with wandb.Run.log(). The following examples show two common appr ...
</Card>

<Card title="How do I log runs launched by continuous integration or internal tools?" href="/support/models/articles/how-do-i-log-runs-launched-by-continuous" arrow="true" horizontal>
  To launch automated tests or internal tools that log to Weights & Biases, create a Service Account on the team settings  ...
</Card>

<Card title="How do I log to the right wandb user on a shared machine?" href="/support/models/articles/how-do-i-log-to-the-right-wandb-user-on-" arrow="true" horizontal>
  When multiple users share a machine, runs can log to the wrong CoreWeave Forge account if you don't explicitly set crede ...
</Card>

<Card title="How do I preserve run data from ephemeral environments?" href="/support/models/articles/how-do-i-preserve-run-data-from-ephemeral-env" arrow="true" horizontal>
  Set WANDB\_DIR to a directory on persistent storage to preserve local run data and diagnostic logs in ephemeral environme ...
</Card>

<Card title="How do I turn off logging?" href="/support/models/articles/how-do-i-turn-off-logging" arrow="true" horizontal>
  You can stop Weights & Biases from logging data to the remote server, or keep logging enabled but suppress its warning m ...
</Card>

<Card title="Which files should I check when my code crashes?" href="/support/models/articles/which-files-should-i-check-when-my-code-" arrow="true" horizontal>
  For the affected run, check debug.log and debug-internal.log in wandb/run- DATE \_ TIME - RUN-ID /logs in the directory w ...
</Card>

<Card title="Why are my metrics missing from wandb.log()?" href="/support/models/articles/why-are-my-metrics-missing-from-wandb-log" arrow="true" horizontal>
  If metrics logged with wandb.log() are not appearing in the Weights & Biases Models UI, there are several common causes. ...
</Card>

<Card title="Why is console output not captured for my run?" href="/support/models/articles/why-is-console-output-not-captured-for-my-run" arrow="true" horizontal>
  Weights & Biases captures your script's stdout and stderr and stores it as output.log on the run's Files tab. By default ...
</Card>


## Related topics

- [Log](/products/post-training/serverless-training/api-reference/models/log.md)