mogilefsd man page

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.
Checker/Fsck -- background filesystem consistency checker
See MogileFS::Worker::Checker.

Data Storage

See MogileFS::Store.

Authors

Brad Fitzpatrick <brad@danga.com>

Mark Smith <junior@danga.com>

Brad Whitaker <whitaker@danga.com>

License

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

See Also

mogstored -- MogileFS storage daemon

<http://danga.com/mogilefs/>

Info

2008-08-16 perl v5.24.0 User Contributed Perl Documentation