dCache install from scratch

Installing dcache 2.6.x from scratch
====================================
 
Installing Java 7
-----------------
Grab the Java 7 RPM:
````
[root@dfs-m1 ~]# yum localinstall http://bootstrap.mwt2.org/repo/MWT2/jre-7-linux-x64.rpm
````
 
 
Intalling PostgreSQL
--------------------
First install the Postgres RPM from yum:
 
````
yum install postgresql
````
 
You'll need to create the initial database as well:
````
service postgresql initdb
````
 
Change the following lines in /var/lib/pgsql/data/pg_hba.conf:
````
# "local" is for Unix domain socket connections only
local all all ident
# IPv4 local connections:
host all all 127.0.0.1/32 ident
# IPv6 local connections:
host all all ::1/128 ident
````
 
to this:
````
# "local" is for Unix domain socket connections only
local all all trust
# IPv4 local connections:
host all all 127.0.0.1/32 trust
# IPv6 local connections:
host all all ::1/128 trust
````
 
Finally, restart postgresql
````
/etc/init.d/postgresql restart
````
 
 
Installing dCache 2.6.x server RPM
----------------------------------
````
yum localinstall http://www.dcache.org/downloads/1.9/repo/2.6/dcache-2.6.19-1.noarch.rpm
````
 
Create Chimera DB:
````
[root@dfs-m1 data]# createdb -U postgres chimera
[root@dfs-m1 data]# createuser -U postgres --no-superuser --no-createrole --createdb --pwprompt chimera
Enter password for new role:
Enter it again:
````
 
Create the srmdcache user and dcache db:
````
[root@dfs-m1 data]# createuser -U postgres --no-superuser --no-createrole --createdb --pwprompt srmdcache
Enter password for new role:
Enter it again:
[root@dfs-m1 data]# createdb -U srmdcache dcache
[root@dfs-m1 data]# createdb -O srmdcache -U postgres billing
````
 
Create the initial dCache database:
````
[root@dfs-m1 data]# dcache database update
````
 
Need to do this (I have no idea what it does) as well, at least for Postgres 8.4:
````
[root@dfs-m1 ~]# createlang -U postgres -d chimera plpgsql
````
 
Remove gplazma configuration and create a blank one:
````
[root@dfs-m1 ~]# mv /etc/dcache/gplazma.conf /etc/dcache/gplazma.conf.bak
[root@dfs-m1 ~]# touch /etc/dcache/gplazma.conf
````
 
Finally, start dCache!
````
[root@dfs-m1 ~]# dcache start
Starting dCacheDomain done
````