Opening root files over network using TBrowser using root 6.22

ROOT
1

Hi all,
All the features work except reading root files over network . I made sure I installed xrootd package also. Opening the root files on the disk works fine, the problem is only opening the ones over network. Could someone help me?
thanks,
Abraham
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ROOT Version: root 6.22 built using source file
Platform: ubuntu 20.04 as a virtual system on windows 10 using the app from microsoft store
Compiler: Not Provided

2

Hi
can you post the exact command/line of code and the corresponding error message you get?

Also, does root-config --features list xrootd among the features available?

Cheers,
Enrico

3

Hi @eguiraud,
This is what I see when I type “root -l” and “new TBrowser()”
image

Yes, root-config --features lists xrootd among the features available. This is the output

image
image1089×96 6.38 KB

4

Hi,
I’m confused, is the problem that TBrowser doesn’t show up (which would be a consequence of that DISPLAY not set, possibly fixed by connecting with ssh -XY to the node you are running the command on) or that files cannot be read over the network? If it’s the latter, can you copy-paste the commands you use to read files with xrootd and the error message you get?

Cheers,
Enrico

5

Hi @eguiraud,

image
image927×140 5.7 KB

I didnt understand enough to answer your question. But this is what I see even after I use ssh -XY.
thanks,
Abraham

6

Hi Abraham,
I don’t see a problem with reading remote data, but with using graphics while connected to a remote server with ssh.

Note that this is not an issue with ROOT per se: you can try starting any graphical application on that server, e.g. a browser, xclock or similar.

About the error you are encountering, this stackoverflow thread might help.

Cheers,
Enrico