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Follow-up Comment #3, bug #87960 (project xrootd):

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Dual nic still and issue. 

On the dual niced machine (atlas8 and atlas21).  I have

[root@atlas8 ~]# cat /proc/sys/kernel/hostname
atlas8.hep.anl.gov
[root@atlas8 ~]# hostname
atlas8.hep.anl.gov
[root@atlas8 ~]# uname -a
Linux atlas8.hep.anl.gov 2.6.18-238.19.1.el5 #1 SMP Fri Jul 15 00:48:58 EDT
2011 x86_64 x86_64 x86_64 GNU/Linux

Using the xrd command - queryspace /atlas I get -
[root@ascint3 ~]# xrd atlas21.hep.anl.gov queryspace /atlas
sec_Client: protocol request for host atlas21.hep.anl.gov
token='&P=sss,0.216000:/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_PM: Loading sss protocol object from libXrdSecsss.so
sec_PM: Using sss protocol,
args='0.216000:/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_sss: Client keytab='/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_sss: Ret 151 bytes of credentials; k=1
sec_Client: protocol request for host 127.0.0.1 token='&P=sss,0.13:&P=unix'
sec_PM: Using sss protocol, args='0.13:'
sec_sss: Ret 151 bytes of credentials; k=1
Disk space approximations (MB):
Total         : 578993
Free          : 549384
Used          : 29608
Largest chunk : 549384

Here is what xrootdfs reports when mounted:

[root@ascint3 ~]# mount -t fuse -a
sec_Client: protocol request for host atlas21.hep.anl.gov
token='&P=sss,0.216000:/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_PM: Loading sss protocol object from libXrdSecsss.so
sec_sss: Client keytab='/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_PM: Using sss protocol,
args='0.216000:/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_sss: Ret 151 bytes of credentials; k=1
sec_sss: Ret 151 bytes of credentials; k=1
[root@ascint3 ~]# df -h /atlas21/atlas
Filesystem            Size  Used Avail Use% Mounted on
xrootdfs              566G   29G  537G   6% /atlas21/atlas


Now if I set the host name of the stand alone data server to
atlas21 and restart xrootd on the machine.

[root@atlas8 ~]# cat /proc/sys/kernel/hostname
atlas21.hep.anl.gov
[root@atlas8 ~]# hostname
atlas21.hep.anl.gov
[root@atlas8 ~]# uname -n
atlas21.hep.anl.gov

(Note that my prompt still shows I am on the same machine)

[root@ascint3 ~]# xrd atlas21.hep.anl.gov queryspace /atlas
sec_Client: protocol request for host atlas21.hep.anl.gov
token='&P=sss,0.216000:/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_PM: Loading sss protocol object from libXrdSecsss.so
sec_PM: Using sss protocol,
args='0.216000:/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_sss: Client keytab='/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_sss: Ret 151 bytes of credentials; k=1
sec_Client: protocol request for host 146.139.33.14
token='&P=sss,0.216000:/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_PM: Using sss protocol,
args='0.216000:/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_sss: Ret 151 bytes of credentials; k=1
sec_Client: protocol request for host atlas21.hep.anl.gov
token='&P=sss,0.216000:/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_PM: Using sss protocol,
args='0.216000:/var/spool/xrootd/.xrd/sss.keytab.grp'
sec_sss: Ret 151 bytes of credentials; k=1
Disk space approximations (MB):
Total         : 19071871
Free          : 18905351
Used          : 0
Largest chunk : 18905351

Here is what xrootdfs reports:

[root@ascint3 ~]# df -h /atlas21/atlas
Filesystem            Size  Used Avail Use% Mounted on
xrootdfs               19T  163G   19T   1% /atlas21/atlas

So I would conclude the following 

1) xrootdfs is not the source of the problem. I can use the xrd queryspace
command to see the same problem.

2) the problem is repeatable 

3) I am not sure where xrootd is getting the weird values to present.

4)  This is fairly serious






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