[25809] | 1 | #!/usr/bin/perl -w
|
---|
| 2 |
|
---|
| 3 | ###########################################################################
|
---|
| 4 | #
|
---|
| 5 | # Enhance the DSpace media filter component with parallel processing
|
---|
| 6 | # capability. Currently only processes media of dc.type "Video" (which will
|
---|
| 7 | # be manually assigned to the *.TS files produced by ReplayMe!)
|
---|
| 8 | #
|
---|
| 9 | # Copyright (C) 2012 New Zealand Digital Library Project
|
---|
| 10 | #
|
---|
| 11 | # This program is free software; you can redistribute it and/or modify
|
---|
| 12 | # it under the terms of the GNU General Public License as published by
|
---|
| 13 | # the Free Software Foundation; either version 2 of the License, or
|
---|
| 14 | # (at your option) any later version.
|
---|
| 15 | #
|
---|
| 16 | # This program is distributed in the hope that it will be useful,
|
---|
| 17 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
| 18 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
| 19 | # GNU General Public License for more details.
|
---|
| 20 | #
|
---|
| 21 | # You should have received a copy of the GNU General Public License
|
---|
| 22 | # along with this program; if not, write to the Free Software
|
---|
| 23 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
| 24 | #
|
---|
| 25 | ###########################################################################
|
---|
| 26 |
|
---|
| 27 | package parallel_dspace_filtermedia;
|
---|
| 28 |
|
---|
| 29 | BEGIN {
|
---|
| 30 | die "GSDLHOME not set\n" unless defined $ENV{'GSDLHOME'};
|
---|
| 31 | die "GSDLOS not set\n" unless defined $ENV{'GSDLOS'};
|
---|
| 32 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib");
|
---|
| 33 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib/cpan");
|
---|
| 34 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib/plugins");
|
---|
| 35 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib/plugouts");
|
---|
| 36 |
|
---|
| 37 | if (defined $ENV{'GSDLEXTS'}) {
|
---|
| 38 | my @extensions = split(/:/,$ENV{'GSDLEXTS'});
|
---|
| 39 | foreach my $e (@extensions) {
|
---|
| 40 | my $ext_prefix = "$ENV{'GSDLHOME'}/ext/$e";
|
---|
| 41 |
|
---|
| 42 | unshift (@INC, "$ext_prefix/perllib");
|
---|
| 43 | unshift (@INC, "$ext_prefix/perllib/cpan");
|
---|
| 44 | unshift (@INC, "$ext_prefix/perllib/plugins");
|
---|
| 45 | unshift (@INC, "$ext_prefix/perllib/plugouts");
|
---|
| 46 | }
|
---|
| 47 | }
|
---|
| 48 | }
|
---|
| 49 |
|
---|
| 50 | use strict;
|
---|
| 51 |
|
---|
| 52 | sub printUsage
|
---|
| 53 | {
|
---|
| 54 | my ($message) = @_;
|
---|
| 55 | if (defined $message)
|
---|
| 56 | {
|
---|
| 57 | print STDERR 'Error! ' . $message . "\n";
|
---|
| 58 | }
|
---|
| 59 | print STDERR 'Usage: parallel_dspace_filtermedia.pl -workers <int> -dspacehome <path> [-debug]' . "\n\n";
|
---|
| 60 | exit(0);
|
---|
| 61 | }
|
---|
| 62 |
|
---|
| 63 | sub main
|
---|
| 64 | {
|
---|
| 65 | print 'Parallel Media Filter started: ' . `date` . "\n";
|
---|
| 66 |
|
---|
| 67 | # 1. Initialization
|
---|
| 68 | my $dspace_home = '';
|
---|
| 69 | my $worker_count = 0;
|
---|
| 70 | my $debug = 0;
|
---|
| 71 | my $i;
|
---|
| 72 | my $argument;
|
---|
| 73 | for ($i = 0; $i < scalar(@ARGV); $i++)
|
---|
| 74 | {
|
---|
| 75 | $argument = $ARGV[$i];
|
---|
| 76 | if ('-dspacehome' eq $argument)
|
---|
| 77 | {
|
---|
| 78 | $i++;
|
---|
| 79 | $dspace_home = $ARGV[$i];
|
---|
| 80 | if (!-d $dspace_home)
|
---|
| 81 | {
|
---|
| 82 | &printUsage('DSpace home path given doesn\'t exist or isn\'t a directory');
|
---|
| 83 | }
|
---|
| 84 | }
|
---|
| 85 | elsif ('-workers' eq $argument)
|
---|
| 86 | {
|
---|
| 87 | $i++;
|
---|
| 88 | $worker_count = $ARGV[$i];
|
---|
| 89 | if ($worker_count !~ /^\d+$/)
|
---|
| 90 | {
|
---|
| 91 | &printUsage('Worker count must be an integer');
|
---|
| 92 | }
|
---|
| 93 | }
|
---|
| 94 | elsif ('-debug' eq $argument)
|
---|
| 95 | {
|
---|
| 96 | $debug = 1;
|
---|
| 97 | }
|
---|
| 98 | else
|
---|
| 99 | {
|
---|
| 100 | &printUsage('Unrecognized argument: ' . $argument);
|
---|
| 101 | }
|
---|
| 102 | }
|
---|
| 103 | if ('' eq $dspace_home)
|
---|
| 104 | {
|
---|
| 105 | &printUsage('Path to dspace home required!');
|
---|
| 106 | }
|
---|
| 107 |
|
---|
| 108 | # 2. Run metadata export to get the identifiers of video items in the
|
---|
| 109 | # collection
|
---|
| 110 | print ' * Retrieving the list of video item identifiers...' . "\n";
|
---|
| 111 | my @video_item_identifiers;
|
---|
| 112 | my $metadata_file_path = $dspace_home . '/log/metadata-' . time() . '.csv';
|
---|
| 113 | my $metadata_export_cmd = '"' . $dspace_home . '/bin/dspace" metadata-export -f "' . $metadata_file_path . '"';
|
---|
| 114 | if ($debug)
|
---|
| 115 | {
|
---|
| 116 | print '[DEBUG: ' . $metadata_export_cmd . "]\n";
|
---|
| 117 | }
|
---|
| 118 | `$metadata_export_cmd`;
|
---|
| 119 | open(FIN, "<:utf8", $metadata_file_path) || die('Error! Failed to open metadata file for reading: ' . $metadata_file_path);
|
---|
| 120 | my $line = '';
|
---|
| 121 | while ($line = <FIN>)
|
---|
| 122 | {
|
---|
[25943] | 123 | if ($line =~ /\"http:\/\/hdl.handle.net\/([^\"]+)\",.*\"Video\"/)
|
---|
[25809] | 124 | {
|
---|
| 125 | my $identifier = $1;
|
---|
| 126 | push(@video_item_identifiers, $identifier);
|
---|
| 127 | if ($debug)
|
---|
| 128 | {
|
---|
| 129 | print '[DEBUG: parsed identifier: ' . $identifier . "]\n";
|
---|
| 130 | }
|
---|
| 131 | }
|
---|
| 132 | }
|
---|
| 133 | close(FIN);
|
---|
| 134 | unlink($metadata_file_path);
|
---|
| 135 |
|
---|
| 136 | if ($worker_count > 0)
|
---|
| 137 | {
|
---|
| 138 | print " - Parallel processing video files...\n";
|
---|
| 139 | # 3. Write the identifiers to the file list
|
---|
| 140 | my $file_list_path = $dspace_home . '/log/filelist' . time() . '.txt';
|
---|
| 141 | open(FLOUT, ">:utf8", $file_list_path) or die('Error! Failed to open file for writing: ' . $file_list_path);
|
---|
| 142 | foreach my $video_item_identifier (@video_item_identifiers)
|
---|
| 143 | {
|
---|
| 144 | print FLOUT $video_item_identifier . "\n";
|
---|
| 145 | }
|
---|
| 146 | close(FLOUT);
|
---|
| 147 | # 4. Invoke mpidspacemediafilter (via mpirun) with the the filelist
|
---|
| 148 | # created above. MPIRun takes the number of worker threads to spawn
|
---|
[25943] | 149 |
|
---|
| 150 | # Determine if we've been provided a mpi.conf file to indicate the other
|
---|
| 151 | # machines (slave nodes) this parallizable process should run on
|
---|
[26999] | 152 | my $mpi_conf_path = $dspace_home . '/mpi.conf';
|
---|
| 153 | my $mpi_flags = '--show-progress --timestamp-output ';
|
---|
[25943] | 154 | if (-f $mpi_conf_path)
|
---|
| 155 | {
|
---|
| 156 | print STDERR " ***** CLUSTER MODE *****\n";
|
---|
[26999] | 157 | $mpi_flags .= '-machinefile "' . $mpi_conf_path . '" ';
|
---|
| 158 | #$mpi_flags .= '-nolocal ';
|
---|
[25943] | 159 | }
|
---|
| 160 | else
|
---|
| 161 | {
|
---|
| 162 | print STDERR " ***** SINGLE COMPUTER MODE *****\n";
|
---|
| 163 | }
|
---|
[26999] | 164 | # Excessive force! Ensure we bind to the correct network interface
|
---|
| 165 | $mpi_flags .= '--mca btl tcp,sm,self --mca btl_tcp_if_include eth0 ';
|
---|
[25943] | 166 |
|
---|
[26999] | 167 | my $mpi_cmd = 'mpirun ' . $mpi_flags . ' -np ' . ($worker_count + 1) . ' "' . $dspace_home . '/bin/mpidspacemediafilter" "' . $ENV{'GSDLHOME'} . '" "' . $dspace_home . '" "' . $file_list_path . '"';
|
---|
[25809] | 168 | if ($debug)
|
---|
| 169 | {
|
---|
| 170 | print '[DEBUG: ' . $mpi_cmd . "\n";
|
---|
| 171 | }
|
---|
| 172 | `$mpi_cmd`;
|
---|
| 173 | unlink($file_list_path);
|
---|
| 174 | }
|
---|
| 175 | # 5. With 0 worker threads we run a serial process calling media filter
|
---|
| 176 | # directly
|
---|
| 177 | else
|
---|
| 178 | {
|
---|
| 179 | print " - Serial processing video files...\n";
|
---|
| 180 | my $serial_mediafilter_cmd = '';
|
---|
| 181 | foreach my $video_item_identifier (@video_item_identifiers)
|
---|
| 182 | {
|
---|
| 183 | print ' - processing item: ' . $video_item_identifier . "\n";
|
---|
| 184 | $serial_mediafilter_cmd = '"' . $dspace_home . '/bin/dspace" filter-media -f -i "' . $video_item_identifier . '"';
|
---|
| 185 | if ($debug)
|
---|
| 186 | {
|
---|
| 187 | print '[DEBUG: ' . $serial_mediafilter_cmd . "]\n";
|
---|
| 188 | }
|
---|
| 189 | `$serial_mediafilter_cmd`;
|
---|
| 190 | }
|
---|
| 191 | }
|
---|
| 192 | # 6. Complete!
|
---|
| 193 | print 'Parallel Media Filter Complete: ' . `date` . "\n";
|
---|
| 194 | }
|
---|
| 195 |
|
---|
| 196 | &main();
|
---|