Hi everyone,

I created a simple publisher, called tick_node, that is closed to the demo talker (source code below). In this talker I have two log messages published in the constructor and one message on each callback process.

When i subscribe to /rosout, I only see callback log message and not init ones.

$ ros2 run my_package tick_node
[INFO] [1672860164.164503973] [tick]: tick is launched
[WARN] [1672860164.164671835] [tick]: yolo
[INFO] [1672860165.164699272] [tick]: 1
[INFO] [1672860166.164675575] [tick]: 2
[INFO] [1672860167.164696142] [tick]: 3
[INFO] [1672860168.164682984] [tick]: 4
^C[INFO] [1672860168.332540873] [rclcpp]: signal_handler(signal_value=2)

Here is the output for rosout :

$ ros2 topic echo /rosout
stamp:
  sec: 1672860165
  nanosec: 164699272
level: 20
name: tick
msg: '1'
file: ...my_package/src/tick_node.cpp
function: process
line: 42
---
stamp:
  sec: 1672860166
  nanosec: 164675575
level: 20
name: tick
msg: '2'
file: ...my_package/src/tick_node.cpp
function: process
line: 42
---
stamp:
  sec: 1672860167
  nanosec: 164696142
level: 20
name: tick
msg: '3'
file: ...my_package/src/tick_node.cpp
function: process
line: 42
---
stamp:
  sec: 1672860168
  nanosec: 164682984
level: 20
name: tick
msg: '4'
file: ...my_package/src/tick_node.cpp
function: process
line: 42
---

The question is : why is there no "tick is launched" and "yolo" in the rosout topic ?

Talker code :

#include "my_packge/tick_node.hpp"

tickNode::tickNode()
    : Node("tick"), count_(0)
{
  // Initialisation process
  timer_ = this->create_wall_timer(
      std::chrono::milliseconds(process_period_ms),
      std::bind(&tickNode::process, this));

  RCLCPP_INFO(
      this->get_logger(),
      (std::string(this->get_name()) + std::string(" is launched")).c_str());
  RCLCPP_WARN(
      this->get_logger(),
      "yolo");
}

void tickNode::process()
{
  c = c + 1;
  RCLCPP_INFO(
      this->get_logger(),
      std::to_string((c)));
}

int main(int argc, char *argv[])
{
  rclcpp::init(argc, argv);
  rclcpp::spin(std::make_shared<tickNode>());
  rclcpp::shutdown();
  return 0;
}