joshs333/bag_recorder

Code for a programmatic Rosbag Recorder through ROS.

bag_recorder's Issues

Node crashes with exit code 9 when recording big amount of data

Hi,

I was working with your bag recorder node recently to be able to remotely trigger bag recordings. It worked pretty well but I discovered that when the topics to record deliver big amount of data your node seems to crash. E.g. I tested recording a topic which yields very small amount of data without any problems. When I changed the topic to one with a type of PointCloud I could record data for roughly 1min until the bag recorder node crashes, saying "exited with error code 9". To give you a scale 1min of recording equals 3.5GB. The problem is that after the node has restarted I no longer can stop the bag recording because it then tells me that no bag recording is going on.
However, when I manually try to record the same heavy topic with rosbag record, it actually works without any problems.

I read that it might an issue with the buffer or chunk size. By looking into your source code I discovered that you set the chunk size to 1024*768. Can you explain why you chose that value? I am referencing to this line: https://github.com/joshs333/bag_recorder/blob/master/src/bag_recorder.cpp#L182

Regards

Missing header file

I am trying to run the start topic programmatically.

As per instructed in the README.md, I am unable to locate the <bag_recorder/Rosbag.h> file.

#include <bag_recorder/Rosbag.h>

Please enlighten.
Thank you.

[Question] Why msg, not srv?

Hi, thank you for a great package.

I'm trying to add a little modification on my fork of this package so that I can use this in my project, and I have a little quick question.
What is the reason for you to use messages to start/stop recording instead of service call?
In my personal opinion, using service call is more natural for "one-shot trigger" than using messages, but I'd like to understand your design philosophy first.

Thank you!