how to fix wandb resume error 'Run already exists and is finished, cann

Not specified by the original author.

TL;DR

A finished run cannot be resumed: resume continues runs that are crashed or still marked running, and a cleanly finished run is closed for good. For more training, start a new run and link it to the previous one through config or tags, or, if the finish was accidental, use the resume setting that allows reusing the id only in the specific must-resume mode your SDK version documents, understanding it reopens a closed record.

how to fix wandb resume error 'Run already exists and is finished, cannot resume'

Use this when

• The run or call fails with this symptom: wandb resume error: Run already exists and is finished, cannot resume.
• You are working on a wandb training job trying to continue a completed run and the failure repeats on the same run or configuration.
• You need the failing run, call, or stage isolated before changing code or thresholds.

Not for this skill when

• A run marked finished by a wrapper while training continues elsewhere, where the fix is the wrapper's lifecycle handling.
• The error text names a different tool, stage, or root cause. Match the verbatim error first and use that skill.

Steps

1. Open the run and confirm its state is finished rather than crashed, and note when and how it finished. Verify: the run's terminal state is confirmed
2. Decide whether continuation must share the run: if yes, check whether your SDK supports reopening and what it does to the run's history. Verify: the continuation strategy is chosen explicitly
3. Otherwise start a new run, copying the prior run's config and recording the predecessor's id in config or a tag. Verify: the new run is linked to the finished one
4. Run a short continuation and confirm metrics append in the new run with the link visible. Verify: continuation logs cleanly with lineage recorded

Variant phrasings

wandb run already exists and is finished cannot resume

The verbatim phrasing.

wandb resume finished run start new run link

The new-run phrasing.

wandb resume allow reopen finished run

The reopen phrasing.

Compatibility: Weights and Biases run resume semantics

Why it happens

Resume semantics protect finished results from being rewritten, so the service closes them. Jobs that treat resume as a general restart mechanism collide with that closure whenever an earlier attempt actually completed.

Edge cases / pitfalls

• The allow-resume modes differ across SDK versions; verify against the installed version's docs, not memory.
• Sweep agents hitting this usually means a run id collision in the sweep config, a different bug than continuation.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_dYqiPuQrmnB8WWlqnq4Lug

Resolved from the public thread: https://vectle.com/posts/pst_dYqiPuQrmnB8WWlqnq4Lug

Thread query: how to fix wandb resume error 'Run already exists and is finished, cannot resume'

TL;DR: A finished run cannot be resumed: resume continues runs that are crashed or still marked running, and a cleanly finished run is closed for good. For more training, start a new run and link it to the previous one through config or tags, or, if the finish was accidental, use the resume setting that allows reusing the id only in the specific must-resume mode your SDK version documents, understanding it reopens a closed record.

Not specified by the original author.

TL;DR

A finished run cannot be resumed: resume continues runs that are crashed or still marked running, and a cleanly finished run is closed for good. For more training, start a new run and link it to the previous one through config or tags, or, if the finish was accidental, use the resume setting that allows reusing the id only in the specific must-resume mode your SDK version documents, understanding it reopens a closed record.

how to fix wandb resume error 'Run already exists and is finished, cannot resume'

Use this when

• The run or call fails with this symptom: wandb resume error: Run already exists and is finished, cannot resume.
• You are working on a wandb training job trying to continue a completed run and the failure repeats on the same run or configuration.
• You need the failing run, call, or stage isolated before changing code or thresholds.

Not for this skill when

• A run marked finished by a wrapper while training continues elsewhere, where the fix is the wrapper's lifecycle handling.
• The error text names a different tool, stage, or root cause. Match the verbatim error first and use that skill.

Steps

1. Open the run and confirm its state is finished rather than crashed, and note when and how it finished. Verify: the run's terminal state is confirmed
2. Decide whether continuation must share the run: if yes, check whether your SDK supports reopening and what it does to the run's history. Verify: the continuation strategy is chosen explicitly
3. Otherwise start a new run, copying the prior run's config and recording the predecessor's id in config or a tag. Verify: the new run is linked to the finished one
4. Run a short continuation and confirm metrics append in the new run with the link visible. Verify: continuation logs cleanly with lineage recorded

Variant phrasings

wandb run already exists and is finished cannot resume

The verbatim phrasing.

wandb resume finished run start new run link

The new-run phrasing.

wandb resume allow reopen finished run

The reopen phrasing.

Compatibility: Weights and Biases run resume semantics

Why it happens

Resume semantics protect finished results from being rewritten, so the service closes them. Jobs that treat resume as a general restart mechanism collide with that closure whenever an earlier attempt actually completed.

Edge cases / pitfalls

• The allow-resume modes differ across SDK versions; verify against the installed version's docs, not memory.
• Sweep agents hitting this usually means a run id collision in the sweep config, a different bug than continuation.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_LEITt3LMm5U0bQKTawfA

Resolved from the public thread: https://vectle.com/posts/pst_LEITt3LMm5U0bQKTawfA

Thread query: how to fix wandb resume error 'Run already exists and is finished, cannot resume'

TL;DR: A finished run cannot be resumed: resume continues runs that are crashed or still marked running, and a cleanly finished run is closed for good. For more training, start a new run and link it to the previous one through config or tags, or, if the finish was accidental, use the resume setting that allows reusing the id only in the specific must-resume mode your SDK version documents, understanding it reopens a closed record.

Not specified by the original author.

TL;DR

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. The metrics file belongs to a previous run in the same workspace. dvclive protects it because silently overwriting would mix two runs in one history.

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

Use this when

• The check or run fails with this symptom: a dvclive log fails with metrics file already exists and resume is false.
• You are working on a dvclive instrumented training script rerun in the same workspace and the failure repeats on the same data or configuration.
• You need the failing run, call, or stage isolated before changing code or thresholds.

Not for this skill when

• A pipeline managed by DVC experiments, where the workspace is reset per experiment and a leftover file signals a failed cleanup.
• The error text names a different tool, stage, or root cause. Match the verbatim error first and use that skill.

Steps

1. Check the dvclive directory timestamps and the run that created it. Verify: the metrics file belongs to an identified earlier run
2. If continuing that run, initialise dvclive with resume enabled. Verify: logging appends to the existing history
3. If starting fresh, remove or archive the old dvclive output first. Verify: a new metrics file is created cleanly
4. Rerun the training script. Verify: metrics log without the error
5. In automated pipelines, create the dvclive directory per run or clean it in the run setup. Verify: repeat runs stop colliding

Variant phrasings

dvclive metrics file already exists resume is false

The shorter phrasing focused on the named failure.

dvclive log failed metrics exists error

The symptom phrasing a searcher tries next.

dvclive resume metrics file fix

The variant naming the failing stage or tool directly.

Compatibility: dvclive logging and resume behaviour, DVC experiment workspaces

Why it happens

dvclive writes metrics to a fixed location relative to the run. Workspaces reused across runs, the normal case outside DVC experiment sandboxes, keep the previous metrics file, and the library chooses an explicit error over corrupting the earlier run history.

Edge cases / pitfalls

• Resuming a run whose parameters changed produces a single history with two configurations; start fresh when the configuration changed.
• Archiving the old directory beats deleting it when the earlier run was never pushed anywhere.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_4ovv8lsqFrNy1BRNi360-Q

Resolved from the public thread: https://vectle.com/posts/pst_4ovv8lsqFrNy1BRNi360-Q

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

TL;DR: 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. The metrics file belongs to a previous run in the same workspace. dvclive protects it because silently overwriting would mix two runs in one history.