NAME

mogilefsd -- MogileFS tracker daemon

USAGE

This is the main MogileFS daemon, mogilefsd, also called the "tracker". All interaction with a MogileFS installation begins by a client talking to a tracker (you should run several in parallel for redundancy).

See MogileFS::Client for a client library.

ARCHITECTURE

Processes

The mogilefsd daemon is an event-loop in the parent process, handling with epoll/kqueue/etc (see Danga::Socket) tons of client connections, while managing a bunch of worker processes underneath.

The worker processes under mogilefsd include:

Client query processing -- implements the MogileFS client/server protocol: See MogileFS::Worker::Query.
Monitoring -- monitors hosts and devices: See MogileFS::Worker::Monitor.
Replicate -- replicates files: See MogileFS::Worker::Replicate.
Deleter -- deletes files from storage nodes (protocol deletes from namespace are immediate): See MogileFS::Worker::Delete.
Reaper -- re-enqueues files for replication when disks are marked dead: See MogileFS::Worker::Reaper.
Fsck -- background filesystem consistency checker: See MogileFS::Worker::Fsck.

Data Storage

See MogileFS::Store.

AUTHORS

Brad Fitzpatrick <brad@danga.com>

Mark Smith <junior@danga.com>

Brad Whitaker <whitaker@danga.com>

COPYRIGHT

 Copyright 2004, Danga Interactive
 Copyright 2005-2006, Six Apart Ltd.

LICENSE

Same terms as Perl itself. Artistic/GPLv2, at your choosing.