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
installmemcached openssl postfix
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
website for installation advice. For convenience, the server and client API code
is automatically checked out from the SVN repository into your LiveJournal cvs
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
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
|DateTime::TimeZone||Required for S2 timezone support.||libdatetime-timezone-perl|
|Danga::Socket||Required for Perlbal, and
|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|
|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
CPAN (or libdevel-cycle-perl on