JVM MCP Server

Instructions

        Args:
            pid (str): 进程ID，使用字符串形式（如："12345"）。
                如果不指定则自动选择第一个Java进程
        
        Returns:
            Dict: 包含JVM状态信息的字典（暂未实现）
        

Implementation Reference

• src/jvm_mcp_server/server.py:453-464 (handler)

  Handler function for the 'get_jvm_status' MCP tool. Currently a stub that returns an error indicating it is not yet implemented.

  @self.mcp.tool()
  def get_jvm_status(pid: str = "") -> Dict:
      """获取JVM整体状态报告
      
      Args:
          pid (str): 进程ID，使用字符串形式（如："12345"）。
              如果不指定则自动选择第一个Java进程
      
      Returns:
          Dict: 包含JVM状态信息的字典（暂未实现）
      """
      return {"success": False, "error": "未实现/不支持"}

• demo/arthas_mcp_server.py:206-237 (handler)

  Full implementation of 'get_jvm_status' tool in the demo server using Arthas client. Aggregates thread, JVM, and memory info from other tools.

  @mcp.tool()
  def get_jvm_status(pid: Optional[int] = None) -> Dict:
      """获取JVM整体状态报告
      
      Args:
          pid: 可选的进程ID，如果不指定则自动选择第一个非arthas的Java进程
      
      Returns:
          包含JVM状态信息的字典
      """
      if pid is None:
          # 如果没有指定PID，获取第一个非arthas的Java进程
          processes = list_java_processes()
          for process in processes:
              if "arthas" not in process["name"].lower():
                  pid = int(process["pid"])
                  break
          if pid is None:
              return {"error": "No valid Java process found"}
  
      thread_info = get_thread_info(pid)
      jvm_info = get_jvm_info(pid)
      memory_info = get_memory_info(pid)
      
      return {
          "pid": pid,
          "thread_info": thread_info,
          "jvm_info": jvm_info,
          "memory_info": memory_info,
          "timestamp": time.time()
      }

• demo/arthas_mcp_server.py:242-243 (helper)

  Usage of get_jvm_status in the jvm_analysis_prompt function within the demo.

  status = get_jvm_status()
  status_json = json.dumps(status, indent=2)