InstallDcache195Ext

Installing dCache 1.9.5 on machine with extended Quattor template

• This page describes the steps needed to get dCache up and running on a machine that was deployed with a quattor template that was extended for dCache

• The dCache 1.9.5 manual http://www.dcache.org/manuals/Book-1.9.5/
  • The steps below follow basically what is described in the manual

• Start postgresql, Quattor will take care of this after reboot

/etc/init.d/postgresql start

• In /var/lib/pgsql/data/pg_hba.conf add

local   all         all                        trust
host    all         all         127.0.0.1/32   trust
host    all         all         ::1/128        trust

• and restart

/etc/init.d/postgresql restart

• Create db and user

createuser -U postgres --no-superuser --no-createrole --createdb --pwprompt srmdcache
createdb -U srmdcache dcache

• Generate keys

ssh-keygen -b 768 -t rsa1 -f /opt/d-cache//etc/server_key -N ""
ssh-keygen -b 1024 -t rsa1 -f /opt/d-cache//etc/host_key -N "" 

• Import pnfs database:
  • go to jefke.wn and in /storage/userbackup/Maite_Db_backup/ find the last files and copy to the machine

scp jefke.wn:/storage/userbackup/Maite_Db_backup/full_1334628123-pnfsdb.tar /var
scp jefke.wn:/storage/userbackup/Maite_Db_backup/full_1334628123.gz /var

• • Untar it in the correct location. Hint: tar -tf to see where the tree structure of the tarball.
  • This configures contains the metadata for the pnfs database

cd /opt
tar -xvf /var/full_1334628123-pnfsdb.tar
mv opt/pnfsdb/ . 
rm -rf opt/

• • Populate the pnfs database

su – postgres
zcat /var/full_1334628123.gz | psql postgres

• A whole set of config files need to be adapted InstallDcache195ExtConfigFiles

• Run install script of dcache.
  • Before you do this you have to remove /pnfs, it is put there by quattor to make all /store/user/username directories.

rm -rf /pnfs/

• • Make sure pnfs is running

/opt/pnfs/bin/pnfs start

• • Needed a little hack in the script to mount fs from localhost (really needed, I don't think so)

/opt/d-cache/install/install.sh

• • with line 260 replace RET=${RET:-localhost} by RET="localhost"

• The poolmanager.conf can be found here InstallDcache_PoolManagerConf

• In case the machine name is not anymore maite.iihe.ac.be some additional changes need to be performed:
  • /pnfs/fs/admin/etc/config/serverName
  • /pnfs/fs/admin/etc/config/dCache/dcache.conf
  • vi "/pnfs/iihe/cms/store/user/odevroed/.(config)(dCache)/dcache.conf"
  • more info in the dcache book in the section Global Configuration with Wormholes
  • Run this

touch /pnfs/fs/admin/etc/config/dCache/'.(fset)(dcache.conf)(io)(on)'

• To be able to use the admin interface:

cd /root/.ssh
scp ccq:/root/dCache_essential_config/keys/dcache_admin_key .
scp ccq:/root/dCache_essential_config/keys/dcache_admin_key.pub .
scp ccq:/root/dCache_essential_config/keys/dcache_admin_config .
cat ~/.ssh/dcache_admin_key.pub >> /opt/d-cache/config/authorized_keys

• • Go to the admin interface

ssh -F /root/.ssh/dcache_admin_config admin@localhost