print warning message on owner node if the parameter operation fails.

[fujitatomoya]

Description

Part of ros2/ros2#1794

Is this user-facing behavior change?

Yes, but only when parameter service operation fails.

Did you use Generative AI?

No

Additional Information

[Copilot]

Pull request overview

This PR promotes parameter service failure logs from debug to warning level so that parameter operation failures surface to users more clearly.

Changes:

• Change logging level from RCLCPP_DEBUG to RCLCPP_WARN for failures in GetParameters and GetParameterTypes services.
• Change logging level from RCLCPP_DEBUG to RCLCPP_WARN for failures in SetParameters and SetParametersAtomically services.
• Change logging level from RCLCPP_DEBUG to RCLCPP_WARN for failures in DescribeParameters service.

---

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[fujitatomoya]

@ahcorde can you review this? i think this is most straight forward to have what we need to show for the user application.

[fujitatomoya]

Pulls: #3037
Gist: https://gist.githubusercontent.com/fujitatomoya/f3f409544300963d72241c48597ae2cd/raw/87e86d35c41d91270c5adfc218e4976a35be0714/ros2.repos
BUILD args: --packages-above-and-dependencies rclcpp
TEST args: --packages-above rclcpp
ROS Distro: rolling
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/18043

• Linux
• Linux-aarch64
• Linux-rhel
• Windows

[fujitatomoya]

@Mergifyio backport kilted jazzy humble

[mergify]

backport kilted jazzy humble

✅ Backports have been created

Details

• #3038 print warning message on owner node if the parameter operation fails. (backport #3037) has been created for branch kilted
• #3039 print warning message on owner node if the parameter operation fails. (backport #3037) has been created for branch jazzy
• #3040 print warning message on owner node if the parameter operation fails. (backport #3037) has been created for branch humble but encountered conflicts

Cherry-pick of f8a7ace has failed:

On branch mergify/bp/humble/pr-3037
Your branch is up to date with 'origin/humble'.

You are currently cherry-picking commit f8a7ace.
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Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   rclcpp/src/rclcpp/parameter_service.cpp

no changes added to commit (use "git add" and/or "git commit -a")

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