openclaw - 💡(How to fix) Fix [Bug]: Compatibility issues with vLLM [1 comments, 2 participants]

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openclaw/openclaw#51473Fetched 2026-04-08 01:10:45
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When using OpenClaw, the context utilization rate remains at 0 and fails to perform proper compaction when the backend is connected to vLLM.

Root Cause

When using OpenClaw, the context utilization rate remains at 0 and fails to perform proper compaction when the backend is connected to vLLM.

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Bug type

Regression (worked before, now fails)

Summary

When using OpenClaw, the context utilization rate remains at 0 and fails to perform proper compaction when the backend is connected to vLLM.

Steps to reproduce

当openclaw 配置使用 vllm 大模型的会出现上下文使用率一直为0 的情况,并且无法做到自动压缩

Expected behavior

master 分支的问题

Actual behavior

当openclaw 配置使用 vllm 大模型的会出现上下文使用率一直为0 的情况,并且无法做到自动压缩

OpenClaw version

master

Operating system

ubuntu22.04

Install method

npm

Model

glm-5

Provider / routing chain

gateway -> vllm -> glm-5

Additional provider/model setup details

No response

Logs, screenshots, and evidence

Impact and severity

No response

Additional information

No response

extent analysis

Fix Plan

To resolve the issue of OpenClaw's context utilization rate remaining at 0 and failing to perform proper compaction when connected to vLLM, we need to adjust the configuration and potentially modify the code for handling the vLLM connection.

Configuration Changes

  1. Check vLLM Connection Settings: Ensure that the vLLM model is correctly configured and accessible. Verify the endpoint URLs, authentication tokens, and any other necessary settings.
  2. Adjust Compaction Settings: Review the compaction settings in OpenClaw to ensure they are compatible with the vLLM model. This might involve adjusting thresholds or intervals for compaction.

Code Changes

If configuration changes are insufficient, modify the OpenClaw code to better handle the vLLM connection:

# Example adjustment to handle vLLM connection
import requests

def connect_to_vllm(model_name):
    # Adjust the URL and authentication as needed
    url = f"https://vllm.example.com/models/{model_name}"
    auth_token = "your_auth_token_here"
    headers = {"Authorization": f"Bearer {auth_token}"}
    
    response = requests.get(url, headers=headers)
    if response.status_code == 200:
        # Successfully connected, proceed with compaction logic
        return True
    else:
        # Handle connection failure
        return False

# Example compaction logic adjustment
def compact_context(model_name):
    if connect_to_vllm(model_name):
        # Perform compaction
        print("Compaction successful")
    else:
        # Handle compaction failure
        print("Compaction failed")

Temporary Workaround

If immediate code changes are not feasible, consider temporarily switching to a different model or adjusting the workflow to bypass the compaction step until a permanent fix is implemented.

Verification

To verify that the fix worked:

  1. Monitor Context Utilization Rate: Observe if the context utilization rate now correctly reflects the usage.
  2. Test Compaction: Manually trigger compaction and verify that it completes successfully.
  3. Review Logs: Check the logs for any error messages related to the vLLM connection or compaction process.

Extra Tips

  • Regularly review and update dependencies to ensure compatibility with the latest models and services.
  • Implement robust logging and monitoring to quickly identify and diagnose issues.
  • Consider adding automated tests for critical functionalities like compaction to catch regressions early.

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FAQ

Expected behavior

master 分支的问题

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openclaw - 💡(How to fix) Fix [Bug]: Compatibility issues with vLLM [1 comments, 2 participants]