Hi there,
When I SSH into ARCHER2 with X11 forwarding (ssh -Y), I get the error: xauth: unable to write authority file /home/n02/n02/emxin/.Xauthority-n. The filesystem has plenty of space but xauth cannot write during SSH handshake, which breaks X11 forwarding to downstream systems. Could you please investigate the NFS write permissions/locking on my home directory?
Xin
Hi Xin,
You’ve hit your /home quota.
Regards,
Ros
Ros,
I checked my quota space on $Home, $WORK and $SCRASH are all the same size, 4.2 GB, which is small and strange - I used the commands: du -sh $HOME; du -sh $WORK and du -sh $SCRATCH. Maybe I used the wrong command. Any way to increase my quota?
Xin
Hi Ros,
I tried to delete some files to release space. I found there are directories “archive” under both /home and /work, which appear to be duplicate copies. But I am unsure on this. If so, is it safe to remove the one under /home? I hope this removal will not affect the archive directory under /work. Can you confirm this? Thanks.
Best,
Xin
Hi Xin,
You have lowered you home usage now so you should find X11 works fine again.
You can see your disk usage within SAFE or see the archer2 documentation here for the commands to run: Data management and transfer - ARCHER2 User Documentation
I suspect given you say the size is all the same that the variables $WORK & $SCRATCH are not defined in your environment so you’ve just checked the uage of $HOME 3 times. I suggest you echo those variables or use full paths.
I have no idea about your archive directory question. Looks like you have deleted it now.
Cheers,
Ros
Hi Ros,
Thanks. I checked my SAFE, my /home quota is 10G and only used 5G, I also have have enough space left on /work. The thing is that I could successfully log in to puma2 from ARCHER2 ln03, however, I could do so from ln04: “X11 connection rejected because of wrong authentication.” when I “ssh -Y puma2”. This is strange.
FYI, I added a line “export XAUTHORITY=/tmp/.Xauthority-emxin” to my .bashrc on ARCHER2.
Best,
Xin