.mcap cannot be displayed in foxglove studio about dds-record-replay HOT 8 OPEN

Hi @263868161

We would need to know more information in order to help you.

• What version of ShapesDemo is being run? Are you compiling it or taking it from a Docker image / runner?
• Why are you generating the types? The code related to dynamic types for Shape is already present.
• Which idl are you using as input? It seems like you added the ros2_interface::msg module/namespace right?

from dds-record-replay.

Hi @263868161

We would need to know more information in order to help you.

• What version of ShapesDemo is being run? Are you compiling it or taking it from a Docker image / runner?
  version:2.11.1,compiling it.
• Why are you generating the types? The code related to dynamic types for Shape is already present.
  I want to do some different tests.
• Which idl are you using as input? It seems like you added the ros2_interface::msg namespace right?
  I added the ros2_interface::msg namespace myself,I used three IDL files,'Shape.idl','Header.idl',and 'Time.idl',Shape.idl is the main IDL file,'Shape.idl' contains 'Header.idl',Header.idl contains 'Time.idl',When the ShapeDemp is running,the data of ‘Shape.idl‘ will be sent.

from dds-record-replay.

It's hard to draw any conclusion with only these hints, would it be possible to share your IDL files? Have you tried merging all three IDL files into a single one? Also, I would try to simplify the setup by removing the namespace.

Needless to say, ShapesDemo is not meant to be modified the way you are doing, so something else other than just substituting the generated files might be required to make it work. Is there any reason why you are not writing your own publishing application?

As a last comment, I believe the type you are describing (2-level structure dependency) would not be supported by Fast-DDS in master branch as of today. Please have a look at eProsima/Fast-DDS-spy#52 (comment) for more information on this regard.

from dds-record-replay.

My project has been uploaded as an attachment, which contains the IDL file

from dds-record-replay.

I met the same issue. Record and Replay works well. But foxglove can not process my mcap file.

Any hints?

from dds-record-replay.

My project has been uploaded as an attachment, which contains the IDL file

Hi @263868161 , I tested the failing cases and you are right, there seems to be issues related to dynamic types which eventually lead to the recorder not storing the information required by Foxglove in order to de-serialize recorded data. We are working on a deep refactor of the dynamic types module (within Fast-DDS library) that should be completed in the upcoming months, tackling this issue as well as other ones identified.

However, I also tested with an unsupported Fast-DDS branch containing a bunch of temporary workarounds, also generating types with the unsupported Fast-DDS-Gen branch, with which the failing cases were successful.

Once the dynamic types refactor is completed, we will check your case and close the issue if everything works fine.

from dds-record-replay.

I met the same issue. Record and Replay works well. But foxglove can not process my mcap file.

Any hints?

Hi @rookybird , this again looks like the recorder has not received the type information Foxglove requires for visualizing these topics. Are you sure your applications are generating and sending this type information? Please read this tutorial for more details, and open a different issue if needed.

from dds-record-replay.

I met the same issue. Record and Replay works well. But foxglove can not process my mcap file.
Any hints?

Hi @rookybird , this again looks like the recorder has not received the type information Foxglove requires for visualizing these topics. Are you sure your applications are generating and sending this type information? Please read this tutorial for more details, and open a different issue if needed.

Hi @juanlofer-eprosima, thanks for the information!
Previously, I realized that I didn't use the dynamic type. I went through the tutorial, changed the code, and now it works.

from dds-record-replay.