deepseek-ai/deepseek-harness · error · LlmError

TIMEOUT

TIMEOUT

Error message

DeepSeek stream idle timeout after ${connection.streamIdleTimeoutMs}ms

What it means

Error "DeepSeek stream idle timeout after ${connection.streamIdleTimeoutMs}ms" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/llm/llm-deepseek/src/adapter.ts:488

      connection,
      apiKey,
      userId,
      attachments,
      () => { watchdog.pulse() },
    )[Symbol.asyncIterator]()
    let exhausted = false
    try {
      while (true) {
        const result = await watchdog.next(iterator)
        if (result.done) {
          exhausted = true
          return
        }
        yield result.value
      }
    } catch (error: unknown) {
      if (timeoutOf(watchdog.signal, STREAM_IDLE_TIMEOUT_CODE) !== undefined) {
        throw new LlmError(
          `DeepSeek stream idle timeout after ${connection.streamIdleTimeoutMs}ms`,
          'TIMEOUT',
          { cause: error },
        )
      }
      if (options.signal?.aborted) {
        throw new LlmError('DeepSeek request aborted by caller', 'ABORTED', { cause: error })
      }
      if (error instanceof LlmError) throw error
      throw new LlmError(`DeepSeek API stream from ${connection.baseURL} failed`, 'TRANSPORT', { cause: error })
    } finally {
      consumer.abort('DeepSeek stream consumer stopped')
      if (!exhausted && iterator.return !== undefined) {
        try {
          await iterator.return()
        } catch (_abortedTransportTeardown) {
          // The consumer controller already owns termination; a return-time abort cannot add a second outcome.
        }

View on GitHub (pinned to b150a551b8)

Solutions

1. Retry the request; if it persists, raise streamIdleTimeoutMs or check network and API health.

When it happens

Trigger: Thrown at packages/llm/llm-deepseek/src/adapter.ts:488 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• Timeouts: ETIMEDOUT, deadlines, and hung requests — what actually expires when a request times out.

AI-assisted analysis of deepseek-ai/deepseek-harness@b150a551b8 (2026-08-24). Data as JSON: /api/errors/317de7c9f284e7db. Report an issue: GitHub.