ros2 network_error ai_generated true

ros2 service call /my_service my_msgs/srv/MyService "{}" --timeout 5: Service call timed out after 5 seconds

ID: ros2/ros2cli-service-call-timeout

Also available as: JSON · Markdown · 中文
90%Fix Rate
87%Confidence
1Evidence
2023-09-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
ros2-humble active — — —
ros2-iron active — — —
ros2-rolling active — — —

Root Cause

The service server is not running, or the network latency exceeds the timeout value due to high load or QoS settings.

generic

中文

服务服务器未运行，或由于高负载或QoS设置，网络延迟超过超时值。

Official Documentation

https://docs.ros.org/en/rolling/Tutorials/Intermediate/CLI-Intro.html

Workarounds

  1. 95% success Check if the service server node is running: ros2 node list | grep my_service_server. If not, launch the server node. 
    Check if the service server node is running: ros2 node list | grep my_service_server. If not, launch the server node.
  2. 90% success Use 'ros2 service type /my_service' to verify the service type matches; if mismatch, correct the service type in the call. 
    Use 'ros2 service type /my_service' to verify the service type matches; if mismatch, correct the service type in the call.

中文步骤

  1. 检查服务服务器节点是否运行：ros2 node list | grep my_service_server。如果未运行，启动服务器节点。
  2. 使用'ros2 service type /my_service'验证服务类型是否匹配；如果不匹配，在调用中更正服务类型。

Dead Ends

Common approaches that don't work:

  1. 80% fail

    If the server is not running, it will never respond; timeout just delays failure detection.

  2. 50% fail

    Service list may show stale entries; the server may have crashed after discovery.