Connect clients pc to local cern eos storage system - single node system > fusex > clients pc

[russian-guy]

Hi, Friends

I am noob)

But i successfully installed server components on alma-linux-8 pc from binaries.

After installation the sever as i can see successfully started:

[user@mgm1 ~]$ ps -aux | grep eos
daemon      2392  0.2  1.4 313280 115712 ?       SLsl 10:16   0:19 eos-mq -n mq -c /var/run/eos/xrd.cf.mq -l /var/log/eos/xrdlog.mq -R daemon -s /var/run/eos/xrd.mq.mq.pid
daemon      2448  0.0  1.9 446180 155900 ?       Ssl  10:16   0:04 eos-qdb -n qdb -c /var/run/eos/xrd.cf.qdb -l /var/log/eos/xrdlog.qdb -R daemon -k fifo -s /var/run/eos/xrd.qdb.qdb.pid
daemon      2554  0.9  5.6 3943072 447648 ?      SLsl 10:16   1:25 eos-mgm -n mgm -c /var/run/eos/xrd.cf.mgm -l /var/log/eos/xrdlog.mgm -R daemon -s /var/run/eos/xrd.mgm.mgm.pid
root        2971  0.2  0.4 625268 36376 ?        Sl   10:16   0:21 eos -b console log _MGMID_
daemon      3070  0.3  2.2 855040 174744 ?       SLsl 10:16   0:34 eos-fst -n fst -c /var/run/eos/xrd.cf.fst -l /var/log/eos/xrdlog.fst -R daemon -s /var/run/eos/xrd.fst.fst.pid
daemon      3124  0.0  0.5 393276 44052 ?        S    10:16   0:02 eos-fst -n fst -c /var/run/eos/xrd.cf.fst -l /var/log/eos/xrdlog.fst -R daemon -s /var/run/eos/xrd.fst.fst.pid
user       25056  0.0  0.0 222012  1104 pts/0    S+   12:44   0:00 grep --color=auto eos

The versions of software:

[user@mgm1 ~]$ sudo eos version
EOS_INSTANCE=eosdev
EOS_SERVER_VERSION=5.1.13 EOS_SERVER_RELEASE=1
EOS_CLIENT_VERSION=5.1.13 EOS_CLIENT_RELEASE=1

[user@mgm1 ~]$ cat /etc/os-release 
NAME="AlmaLinux"
VERSION="8.10 (Cerulean Leopard)"
ID="almalinux"
ID_LIKE="rhel centos fedora"
VERSION_ID="8.10"
PLATFORM_ID="platform:el8"
PRETTY_NAME="AlmaLinux 8.10 (Cerulean Leopard)"
ANSI_COLOR="0;34"
LOGO="fedora-logo-icon"
CPE_NAME="cpe:/o:almalinux:almalinux:8::baseos"
HOME_URL="https://almalinux.org/"
DOCUMENTATION_URL="https://wiki.almalinux.org/"
BUG_REPORT_URL="https://bugs.almalinux.org/"
ALMALINUX_MANTISBT_PROJECT="AlmaLinux-8"
ALMALINUX_MANTISBT_PROJECT_VERSION="8.10"
REDHAT_SUPPORT_PRODUCT="AlmaLinux"
REDHAT_SUPPORT_PRODUCT_VERSION="8.10"
SUPPORT_END=2029-06-01

On second pc i have started also Alma-Linux-8.

I added information about mgm1 node to /etc/hosts file on second pc:

[user@client2 dev]$ sudo cat /etc/hosts
[sudo] password for user: 
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.1.36 mgm1 mgm1.localdomain

Fuse config file:

[user@client2 dev]$ cat /etc/eos.1.keytab 
0 u:root g:root n:root N:5506672669367468033 c:1282122142 e:0 f:0 k:0123456789012345678901234567890123456789012345678901234567890123

[user@client2 dev]$ cat /etc/eos/fuse.dev.conf 
{
  "name" : "eosdev",
  "hostport" : "192.168.1.36:1094",
  "remotemountdir" : "/eos/",
  "localmountdir" : "/eos/",
  "mdcachedir" : "/var/eos/fusex/",
  "mdzmqtarget" : "tcp://192.168.1.36:1100",
  "mdzmqidentity" : "eosxd",
  "options" : {
    "debug" : 1,
    "lowleveldebug" : 0,
    "debuglevel" : 5,
    "libfusethreads" : 0,
    "md-kernelcache" : 1,
    "hide-versions" : 1,
    "data-kernelcache" : 1,
    "mkdir-is-sync" : 1,
    "create-is-sync" : 1,
    "global-flush" : 1,
    "global-locking" : 1,
    "fd-limit" : 65536,
    "no-fsync" : [ ".db", ".db-journal", ".sqlite", ".sqlite-journal", ".db3", ".db3-journal", "*.o"    ]
  },
  "cache" : {  
    "type" : "disk",
    "size-mb" : 1000,
    "location" : "/var/eos/fusex/",
    "journal"  : "/var/tmp/fusex/"
  },
  "auth" : {
    "shared-mount" : 1,
    "unix" : 1,
    "unix-root" : 0,
    "sss" : 1
  }
}

Less complicated mechanism is also working:

sudo mount -t fuse eosxd -ofsname=192.168.1.36:/eos/ /eos/

THE PROBLEM IS ABOUT CREATING FILES:

[user@client2 test]$ ls -alh
total 8,5K
drwxrwxrwx. 2 root root 4,0K ноя 19 12:28 .
drwxrwxr-x. 2 root root 4,0K ноя 19 05:57 ..
-rw-rw-r--. 1   99   99    4 ноя 19 12:28 test.txt
-rw-rw-r--. 1   99   99    0 ноя 19 12:28 test.xt
[user@client2 test]$ pwd
/eos/dev/test

I can not understand why gid and uid are 99, when i creating files from clients pc.

How to resolve such sort of problems?