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

# How do I fix `Rate limit exceeded` errors when logging metrics?

If you receive an HTTP `429 Rate limit exceeded` error when you call `wandb.log()`, you're exceeding the rate limit quota for your project. W\&B applies rate limits per project, and paid plans have higher limits than free plans.

Use the following steps to reduce your logging load and recover any data that was throttled.

## Stay under the rate limit

1. **Update your W\&B SDK**: The latest version includes optimized mechanisms for retrying requests and managing quota usage.

   ```bash theme={null}
   pip install --upgrade wandb
   ```

2. **Reduce logging frequency**: Log metrics less often. For example, log every `N` epochs instead of every epoch:

   ```python theme={null}
   for epoch in range(100):
       if epoch % 5 == 0:
           wandb.log({"acc": accuracy, "loss": loss})
   ```

3. **Sync data manually**: If you're rate limited, W\&B stores your run data locally. To upload the local run directory at `[RUN-FILE-PATH]` after the rate limit clears:

   ```bash theme={null}
   wandb sync [RUN-FILE-PATH]
   ```

## Rate limit headers

To gauge how close you are to the quota and when you can resume logging, inspect the rate limit headers on the response. When you're rate limited, the response includes these headers:

| Header                | Description                                                      |
| --------------------- | ---------------------------------------------------------------- |
| `RateLimit-Remaining` | Quota remaining in the current window, on a scale from 0 to 1000 |
| `RateLimit-Reset`     | Seconds until the current quota resets                           |

If `RateLimit-Remaining` is `0`, wait for the number of seconds in `RateLimit-Reset` before you retry.

For more information, see [Experiments limits and performance](/models/track/limits/).

***

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