1. Install extra required packages and modules
You need to install some extra Perl modules and system components for
supplemental software such as Perlbal and MogileFS. These are not needed by the core
LiveJournal software, and are not checked for by the LiveJournal configuration checking tool
(checkconfig.pl).
#cd$LJHOME#apt-getinstallmemcached openssl postfix
Installing memcached
Many Linux installations have memcached packages available.
If you are using Debian, you can install it as above.
If you prefer to install and set it up yourself, please see the Danga Interactive![[o]](/img/link.png)
website for installation advice. For convenience, the server and client API code
is automatically checked out from the SVN repository into your LiveJournal cvs
subdirectories: /memcached/server and
memcached/api/perl, respectively.
The Cache::Memcached module on CPAN is
just the client side. This often confuses people. You also need to make sure you are
running the server component (provides
the memcached daemon).
As before, installing installing binary packages of modules provided through your Linux distribution is probably easiest. Modules for which no binary package is available can be obtained through CPAN, as discussed at Section 2, “Installing Perl Modules”.
| BSD::Resource | Required for Perlbal. | libbsd-resource-perl |
| Cache::Memcached | memcached client API module | libcache-memcached-perl |
| Crypt::SSLeay | Required for SSL support. | libnet-ssleay-perl |
| Data::Queue::Persistent | Required for persistent queues for MogileFS. |
|
| DateTime::TimeZone | Required for S2 timezone support. | libdatetime-timezone-perl |
| Danga::Socket | Required for Perlbal, and MogileFS daemons. |
libdanga-socket-perl |
| IO::AIO | (version 1.6 or greater) | libio-aio-perl |
| IO::Socket::SSL | (version 0.97 or greater) | libio-socket-ssl-perl |
| JSON::Any | Required for TheSchwartz server/workers | libjson-any-perl |
| JSON | Required for TheSchwartz server/workers | libjson-perl |
| Net::SSLeay | Required for SSL support. | libnet-ssleay-perl |
| Net::Netmask | Required for Perlbal reverse-proxying. | libnet-netmask-perl |
| Perlbal | ||
| Sys::Syscall | Required for Perlbal. | libsys-syscall-perl |
| Text::SimpleTable | Required for TheSchwartz job submission reports. | libtext-simpletable-perl |
Perlbal / Gearman can optionally use Devel::Gladiator,
and Devel::Cycle for memory tracking and debugging.
If you wish to install these, they are available through the SVN
repository: http://code.sixapart.com/svn/Devel-Gladiator/ and
CPAN (or libdevel-cycle-perl on Debian), respectively.