googleapis/mcp-toolbox · error

error generating logs url: %v

Error message

error generating logs url: %v

What it means

ToJobs builds a Cloud Console logs URL for each job via JobLogsURLFromProto; when that helper errors (typically because the job proto lacks placement info), ToJobs aborts the whole conversion and returns this wrapped message with %v. Note it uses %v, so the original error is not unwrap-able programmatically.

Source

Thrown at internal/sources/dataproc/dataproc.go:331

		return nil, fmt.Errorf("failed to list jobs: %w", err)
	}

	jobs, err := ToJobs(jobPbs, s.Region)
	if err != nil {
		return nil, err
	}

	return ListJobsResponse{Jobs: jobs, NextPageToken: nextPageToken}, nil
}

// ToJobs converts a slice of protobuf Job messages to a slice of Job structs.
func ToJobs(jobPbs []*dataprocpb.Job, region string) ([]Job, error) {
	jobs := make([]Job, 0, len(jobPbs))
	for _, jobPb := range jobPbs {
		consoleUrl := JobConsoleURLFromProto(jobPb, region)
		logsUrl, err := JobLogsURLFromProto(jobPb, region)
		if err != nil {
			return nil, fmt.Errorf("error generating logs url: %v", err)
		}

		status := "STATE_UNSPECIFIED"
		subStatus := ""
		var startTime, endTime string

		if jobPb.Status != nil {
			status = jobPb.Status.State.Enum().String()
			subStatus = jobPb.Status.Substate.Enum().String()
		}

		var sTime, eTime time.Time
		for _, s := range jobPb.StatusHistory {
			t := s.StateStartTime.AsTime()
			if sTime.IsZero() || t.Before(sTime) {
				sTime = t
			}
		}

View on GitHub (pinned to 8cc6e09de2)

Solutions

1. Check the job proto: ensure jobs have Placement.ClusterName set (query a specific job via GetJob to inspect)
2. If you control job creation, verify jobs are submitted against a cluster so placement is recorded
3. Handle the error per-job by falling back to a URL-less result instead of failing the whole list
4. Report upstream if the Dataproc API legitimately returns jobs without placement

Example fix

// before
logsUrl, err := JobLogsURLFromProto(jobPb, region)
if err != nil {
	return nil, fmt.Errorf("error generating logs url: %v", err)
}
// after
logsUrl, err := JobLogsURLFromProto(jobPb, region)
if err != nil {
	logsUrl = "" // degrade gracefully instead of failing the whole batch
}

if job.GetPlacement() == nil {
	// skip URL generation for this job
}

func hasPlacement(j *dataprocpb.Job) bool { return j != nil && j.GetPlacement() != nil }

logsUrl, err := JobLogsURLFromProto(jobPb, region)
if err != nil {
	logsUrl = "" // fall back to empty URL rather than failing the batch
}

When it happens

Trigger: Calling ListJobs (which calls ToJobs) when any returned job's dataprocpb.Job has a nil Placement field, so JobLogsURLFromProto cannot determine the cluster name for the logs URL.

Common situations: Jobs in unusual states or created through paths that omit placement metadata; partially deleted clusters; jobs returned by filters where placement was never populated.

Related errors

• job has no placement info
• failed to create dataproc client: %w
• failed to create longrunning client: %w
• failed to create dataproc job client: %w
• failed to list clusters: %w

AI-assisted analysis of googleapis/mcp-toolbox@8cc6e09de2 (2026-09-05). Data as JSON: /api/errors/4bb1a62803829610. Report an issue: GitHub.