Failed to read from stream, Pipeline producer overflowed!

[Briancbn]

Summary

After installing the externalcontrol-1.0.urcap and use my remote pc ip address as the remote host address, I launch the ur3e_bringup.launch file but I keep getting the error Pipeline producer overflowed! , Communication error, what other setting steps did I miss?

Versions

• ROS Driver version:
• Affected Robot Software Version(s): PolyScope 5.4
• Affected Robot Hardware Version(s): ur3e
• Robot Serial Number:
• UR+ product(s) installed: ur3e
• URCaps Software version(s): externalcontrol-1.0.urcap

Issue details

Use Case and Setup

Just testing the ur3e driver usability currently

Steps to Reproduce

See summary

Expected Behavior

I didn't expect there to be any error when running the ur3e_bringup program

[fmauch]

Thanks for reporting this. I've seen this problem a couple of times during development, but could never quite reproduce it.

Basically, this means that

• Connection to the robot could be established, the ROS side is receiving data from the robot putting it in a queue
• Data is not being taken out from the queue, meaning that it overflows.

Looking at the code I might have an idea, where that comes from... Does it happen every time for you? Do the errors eventually stop and the driver is running normally?

[Shaluols]

This error also happened to me, but not every time. And it did not affect my Moveit controlling.

[fmauch]

Thanks for this clarification. I'll prepare a fix that should prevent this from happening.

[Briancbn]

We managed to temporarily resolve the problem by switching to another PC. The error happened all the time on the original PC I tested the code with, but the new PC seems to be ok for now. (I am not sure this helps)

[fmauch]

I still think, that this is a bug. Which is why I asked whether the errors eventually stop and the driver is running normally. I'll provide a fix, anyway.

[fmauch]

@Briancbn, @Abbyls could you please try to reproduce the issue using #18 applied?

[fmauch]

Should be fixed in #18. Closing this. If it appears to be not fixed, please reopen.

[ljden]

I'm getting this error while running the current stable (master) branch. Would you like me to open a new issue?

[fmauch]

I'm getting this error while running the current stable (master) branch. Would you like me to open a new issue?

Please open a new one describing your specific problem. If we realize that this is really the same problem as here, we can merge them later ( define the new issue a duplicate).

[ljden]

I'm getting this error while running the current stable (master) branch. Would you like me to open a new issue?

Please open a new one describing your specific problem. If we realize that this is really the same problem as here, we can merge them later ( define the new issue a duplicate).

See #367. Probably a different source of error