| 1 | #!/usr/bin/perl |
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| 2 | # |
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| 3 | # MogileFS daemon |
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| 4 | # |
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| 5 | # Copyright 2004, Danga Interactive |
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| 6 | # Copyright 2005-2006, Six Apart Ltd. |
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| 7 | # |
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| 8 | # See POD at bottom. |
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| 9 | |
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| 10 | use strict; |
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| 11 | use warnings; |
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| 12 | use lib 'lib'; |
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| 13 | use MogileFS::Server; |
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| 14 | |
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| 15 | my $s = MogileFS::Server->server; |
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| 16 | $s->run; |
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| 17 | |
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| 18 | 1; |
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| 19 | |
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| 20 | # Local Variables: |
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| 21 | # mode: perl |
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| 22 | # c-basic-indent: 4 |
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| 23 | # indent-tabs-mode: nil |
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| 24 | # End: |
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| 25 | |
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| 26 | __END__ |
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| 27 | |
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| 28 | =head1 NAME |
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| 29 | |
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| 30 | mogilefsd -- MogileFS tracker daemon |
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| 31 | |
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| 32 | =head1 USAGE |
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| 33 | |
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| 34 | This is the main MogileFS daemon, mogilefsd, also called the |
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| 35 | "tracker". All interaction with a MogileFS installation begins by a |
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| 36 | client talking to a tracker (you should run several in parallel for |
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| 37 | redundancy). |
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| 38 | |
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| 39 | See L<MogileFS::Client> for a client library. |
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| 40 | |
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| 41 | =head1 ARCHITECTURE |
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| 42 | |
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| 43 | =head2 Processes |
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| 44 | |
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| 45 | The mogilefsd daemon is an event-loop in the parent process, handling |
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| 46 | with epoll/kqueue/etc (see L<Danga::Socket>) tons of client |
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| 47 | connections, while managing a bunch of worker processes underneath. |
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| 48 | |
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| 49 | The worker processes under mogilefsd include: |
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| 50 | |
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| 51 | =over 4 |
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| 52 | |
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| 53 | =item B<Client query processing> -- implements the MogileFS client/server protocol |
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| 54 | |
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| 55 | See L<MogileFS::Worker::Query>. |
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| 56 | |
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| 57 | =item B<Monitoring> -- monitors hosts and devices |
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| 58 | |
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| 59 | See L<MogileFS::Worker::Monitor>. |
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| 60 | |
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| 61 | =item B<Replicate> -- replicates files |
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| 62 | |
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| 63 | See L<MogileFS::Worker::Replicate>. |
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| 64 | |
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| 65 | =item B<Deleter> -- deletes files from storage nodes (protocol deletes from namespace are immediate) |
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| 66 | |
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| 67 | See L<MogileFS::Worker::Delete>. |
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| 68 | |
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| 69 | =item B<Reaper> -- re-enqueues files for replication when disks are marked dead |
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| 70 | |
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| 71 | See L<MogileFS::Worker::Reaper>. |
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| 72 | |
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| 73 | =item B<Checker/Fsck> -- background filesystem consistency checker |
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| 74 | |
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| 75 | See L<MogileFS::Worker::Checker>. |
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| 76 | |
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| 77 | =back |
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| 78 | |
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| 79 | =head2 Data Storage |
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| 80 | |
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| 81 | See L<MogileFS::Store>. |
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| 82 | |
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| 83 | =head1 AUTHORS |
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| 84 | |
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| 85 | Brad Fitzpatrick E<lt>brad@danga.comE<gt> |
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| 86 | |
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| 87 | Mark Smith E<lt>junior@danga.comE<gt> |
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| 88 | |
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| 89 | Brad Whitaker E<lt>whitaker@danga.comE<gt> |
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| 90 | |
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| 91 | =head1 COPYRIGHT |
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| 92 | |
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| 93 | Copyright 2004, Danga Interactive |
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| 94 | Copyright 2005-2006, Six Apart Ltd. |
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| 95 | |
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| 96 | =head1 LICENSE |
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| 97 | |
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| 98 | Same terms as Perl itself. Artistic/GPLv2, at your choosing. |
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| 99 | |
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| 100 | =head1 SEE ALSO |
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| 101 | |
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| 102 | L<mogstored> -- MogilefS storage daemon |
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| 103 | |
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| 104 | L<http://danga.com/mogilefs/> |
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