Error: failing to mount EOS on yggdrasil

HPC Technical
1

Hello,

I’m trying to mount EOS on yggdrasil interactive partition (cpu003) via fuse but it’s currently not working (I’m getting same error since last week).

I’m using the following procedure:

export EOS_MGM_URL="root://eoshome-s.cern.ch"
export EOS_HOME="/eos/user/s"
eos fuse mount ${HOME}/cernbox-s

And I get the following output:

.... trying to create ... /home/users/f/franchel/cernbox-s
===> Mountpoint   : /home/users/f/franchel/cernbox-s
===> Fuse-Options : max_readahead=131072,max_write=4194304,fsname=eoshome-s.cern.ch,url=root://eoshome-s.cern.ch//eos/
===> fuse readahead        : 1
===> fuse readahead-window : 1048576
===> fuse debug            : 0
===> fuse low-level debug  : 0
===> fuse log-level        : 5
===> fuse write-cache      : 1
===> fuse write-cache-size : 67108864
===> fuse rm level protect : 1
===> fuse lazy-open-ro     : 0
===> fuse lazy-open-rw     : 1
==== fuse multi-threading  : true
[check] 1. time for mount ...
[check] 2. time for mount ...
[check] 3. time for mount ...
[check] 4. time for mount ...
error: failed mount, maybe still mounted? Check with df and eventually 'killall eosd'

If I check with df, I don’t see it already mounted.

Does anybody have hints of what is going on?

Thanks in advance for any help on that!

2

Hi @Stefano.Franchellucci

It’s work for me, could you try on the login node.

(yggdrasil)-[alberta@login1 ~]$ export EOS_MGM_URL="root://eoshome-s.cern.ch"
(yggdrasil)-[alberta@login1 ~]$ export EOS_HOME="/eos/user/s"
(yggdrasil)-[alberta@login1 ~]$ eos fuse mount ${HOME}/cernbox-s
.... trying to create ... /home/users/a/alberta/cernbox-s
===> Mountpoint   : /home/users/a/alberta/cernbox-s
===> Fuse-Options : max_readahead=131072,max_write=4194304,fsname=eoshome-s.cern.ch,url=root://eoshome-s.cern.ch//eos/
===> fuse readahead        : 1
===> fuse readahead-window : 1048576
===> fuse debug            : 0
===> fuse low-level debug  : 0
===> fuse log-level        : 5
===> fuse write-cache      : 1
===> fuse write-cache-size : 67108864
===> fuse rm level protect : 1
===> fuse lazy-open-ro     : 0
===> fuse lazy-open-rw     : 1
==== fuse multi-threading  : true
info: successfully mounted EOS [root://eoshome-s.cern.ch] under /home/users/a/alberta/cernbox-s
3

Hi Adrien,

Thanks for checking that.

I’ve just tried and from the login node it works. But if I mount it in the login node, then I cannot access it from a different one. Is there a way to do that?

While from cpu003 it is still giving the same error when running fuse.

4

Hi @Stefano.Franchellucci,

I tried on another node and it’s working.

I reboot cpu003 and it’s working again on this node.

(yggdrasil)-[alberta@cpu003 ~]$ eos fuse mount eosatlas
warning: assuming you gave a relative path with respect to current working directory => mountpoint=eosatlas
===> Mountpoint   : /home/users/a/alberta/eosatlas
===> Fuse-Options : max_readahead=131072,max_write=4194304,fsname=eosatlas.cern.ch,url=root://eosatlas.cern.ch//eos/
===> fuse readahead        : 1
===> fuse readahead-window : 1048576
===> fuse debug            : 0
===> fuse low-level debug  : 0
===> fuse log-level        : 5
===> fuse write-cache      : 1
===> fuse write-cache-size : 67108864
===> fuse rm level protect : 1
===> fuse lazy-open-ro     : 0
===> fuse lazy-open-rw     : 1
==== fuse multi-threading  : true
info: successfully mounted EOS [root://eosatlas.cern.ch] under /home/users/a/alberta/eosatlas
1 Like
5

Hi @Adrien.Albert , It’s working for me too now, rebooting seems to have solved the issue. Thanks a lot for the support !

1 Like