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openclaw - 💡(How to fix) Fix Agent pre-flight check: verify model provider is reachable before scheduling cron jobs [1 participants]

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openclaw/openclaw#58584•Fetched 2026-04-08 02:00:35
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In a real incident, 15 crew agents were configured to use ollama/qwen3:32b and similar models before Ollama was properly installed. All 15 agents generated constant auth errors, contributing to CPU load and log bloat alongside the primary model resolution failure.

Error Message

  • Auth error spam in logs (contributing to log bloat)

Root Cause

In a real incident, 15 crew agents were configured to use ollama/qwen3:32b and similar models before Ollama was properly installed. All 15 agents generated constant auth errors, contributing to CPU load and log bloat alongside the primary model resolution failure.

RAW_BUFFERClick to expand / collapse

Problem

Agents configured with model providers that aren't running (e.g. Ollama models before Ollama is installed/started) cause constant authentication errors. With 15 agents all hitting a dead provider, this creates:

  • Continuous CPU churn from failed requests
  • Auth error spam in logs (contributing to log bloat)
  • Gateway instability from the cumulative load

Expected Behavior

Before scheduling cron jobs or accepting messages for an agent, verify that the configured model provider is reachable. If not:

  1. Log a clear warning: "Agent X uses ollama/qwen3:32b but Ollama is not reachable — skipping cron scheduling"
  2. Skip cron job scheduling for that agent
  3. Retry provider check periodically (e.g. every 5 minutes) and enable the agent when the provider comes online
  4. Never silently spam failed requests in a tight loop

Context

In a real incident, 15 crew agents were configured to use ollama/qwen3:32b and similar models before Ollama was properly installed. All 15 agents generated constant auth errors, contributing to CPU load and log bloat alongside the primary model resolution failure.

Impact

Force multiplier for other issues. 15 agents x constant retries = significant resource drain that compounds with any other gateway instability.

extent analysis

TL;DR

Implement a check to verify the reachability of the configured model provider before scheduling cron jobs or accepting messages for an agent.

Guidance

  • Modify the agent configuration to include a provider reachability check before attempting to use the model provider.
  • Implement a retry mechanism to periodically check the provider's availability and enable the agent when it comes online.
  • Log a clear warning when a provider is not reachable, including the agent name and provider details.
  • Consider implementing a rate limit or backoff strategy to prevent excessive requests to unreachable providers.

Example

def check_provider_reachability(provider):
    # Implement provider-specific reachability check
    try:
        # Attempt to connect to the provider
        provider.connect()
        return True
    except Exception as e:
        # Log warning and return False
        logging.warning(f"Provider {provider} is not reachable")
        return False

def schedule_cron_job(agent):
    provider = agent.get_provider()
    if check_provider_reachability(provider):
        # Schedule cron job
        pass
    else:
        # Skip cron job scheduling and log warning
        logging.warning(f"Agent {agent} uses {provider} but it is not reachable — skipping cron scheduling")

Notes

The exact implementation of the provider reachability check will depend on the specific provider being used. The example code snippet is a minimal illustration of the concept and may need to be adapted to the actual use case.

Recommendation

Apply a workaround by implementing the provider reachability check and retry mechanism to prevent constant authentication errors and reduce the load on the gateway. This will help mitigate the issue until a more permanent solution can be implemented.

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