1. Jean-Philippe Baud - Sophie Lemaitre IT-GD, CERN May 2005
How to install the LFC ?
Jean-Philippe Baud - Sophie Lemaitre
IT-GD, CERN
May 2005

2. Documentation and Help
Documentation (LFC & DPM):
-> Data Management section :
LFC/DPM Admin Guides
RLS to LFC migration script
Useful presentations (architecture, implementation, installation, etc.)
Help :
Archived support mailing lists :
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3. Requirements What kind of machine ? Size of the DB ?
Service machine with :
2GHz processor with 512 MB of memory (not hard req.)
Dual power supply
Mirrored system disk
Size of the DB ?
Depends on the size of the file/directory names, and on the number of replicas per file
~ 1GB for one million entries in the LFC
Backups & Recovery
This is the site’s responsibility !
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4. Database backend MySQL : Oracle :
LFC-client depends on MySQL-client >=
Oracle :
LFC-client depends on
oracle-instantclient-basic-lcg
-> works with Oracle DB server 7, 8, 9i, 10g
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5. How to install the LFC ? (1/4)
This is about LFC version included in LCG-2_5_0
This is very slightly different from LFC version (included in LCG-2_4_0) :
Different RPM dependencies
lfcdaemon runs as “lfcmgr” instead of root
Automatic installation via YAIM (for MySQL) :
./install_node site-info.def lcg-LFC_mysql
./configure_node site-info.def LFC_mysql
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6. How to install the LFC ? (2/4)
Create LFC user “lfcmgr”
Security :
Whole security stack (globus RPMs, etc.)
Host certificate :
root]# ls -al /etc/grid-security/lfcmgr/
-rw-r--r lfcmgr lfcmgr May 26 14:26 lfccert.pem
-r lfcmgr lfcmgr May 26 14:26 lfckey.pem
gridmapdir / pool accounts :
root]# ls -al /etc/grid-security/ | grep grid
drwxrwxr-x 2 root lfcmgr May 26 15:48 gridmapdir
-rw-r--r root root May 26 14:03 grid-mapfile
Install the RPMs :
MySQL-client (and server if on the same box)
lcg-dm-common
LFC-server-mysql, LFC-client
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7. How to install the LFC ? (3/4)
Database :
LFC database user “lfc”
Tables :
mysql –u lfc –p < /opt/lcg/share/LFC/create_lfc_tables_mysql.sql
Configuration file :
echo > /opt/lcg/etc/NSCONFIG
Check the permissions :
NSCONFIG :
root]# ls -al /opt/lcg/etc/NSCONFIG
-rw-rw lfcmgr lfcmgr 44 May 26 12:07 /opt/lcg/etc/NSCONFIG
Log file :
root]# ls -al /var/log/lfc/log
-rw-r--r lfcmgr lfcmgr May 26 15:53 /var/log/lfc/log
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8. How to install the LFC ? (4/4)
Run the LFC daemon :
cp -p /etc/sysconfig/lfcdaemon.templ /etc/sysconfig/lfcdaemon
Modify /etc/sysconfig/lfcdaemon if necessary
Then run :
service lfcdaemon start
Create the VOs directories :
export LFC_HOST=<your_lfc_host>
lfc-mkdir /grid
lfc-mkdir /grid/<VO>
lfc-chmod 775 /grid/<VO>
lfc-setacl -m d:u::7,d:g::7,d:o:5 /grid/<VO>
Publish the LFC in your Information System
And this is finished !
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9. oracle-instantclient-basic-lcg-10.1.0.3
LFC for Oracle backend
oracle-instantclient-basic-lcg
This is just the client, works with Oracle DB server 7, 8, 9i and 10g
NSCONFIG :
In /etc/sysconfig/lfcdaemon :
$TWO_TASK
-> Name of the DB Oracle SID
$TNS_ADMIN
-> Directory where tnsnames.ora resides
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