|
Line 0
Link Here
|
| 0 |
- |
1 |
#!/usr/bin/perl |
|
|
2 |
|
| 3 |
# This file is part of Koha. |
| 4 |
# |
| 5 |
# Koha is free software; you can redistribute it and/or modify it |
| 6 |
# under the terms of the GNU General Public License as published by |
| 7 |
# the Free Software Foundation; either version 3 of the License, or |
| 8 |
# (at your option) any later version. |
| 9 |
# |
| 10 |
# Koha is distributed in the hope that it will be useful, but |
| 11 |
# WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 |
# GNU General Public License for more details. |
| 14 |
# |
| 15 |
# You should have received a copy of the GNU General Public License |
| 16 |
# along with Koha; if not, see <http://www.gnu.org/licenses>. |
| 17 |
|
| 18 |
=head1 NAME |
| 19 |
|
| 20 |
background_jobs_worker_es.pl - Worker script that will process background Elasticsearch jobs |
| 21 |
|
| 22 |
=head1 SYNOPSIS |
| 23 |
|
| 24 |
./background_jobs_worker_es.pl --batch_size=X |
| 25 |
|
| 26 |
Options: |
| 27 |
|
| 28 |
--help brief help message |
| 29 |
-b --batch_size how many jobs to commit |
| 30 |
|
| 31 |
=head1 OPTIONS |
| 32 |
|
| 33 |
=over 8 |
| 34 |
|
| 35 |
=item B<--help> |
| 36 |
|
| 37 |
Print a brief help message and exits. |
| 38 |
|
| 39 |
=item B<--batch_size> |
| 40 |
|
| 41 |
How many jobs to commit per batch. Defaults to 10, will commit after .1 seconds if no more jobs incoming. |
| 42 |
|
| 43 |
=back |
| 44 |
|
| 45 |
=head1 DESCRIPTION |
| 46 |
|
| 47 |
This script will connect to the Stomp server (RabbitMQ) and subscribe to the Elasticsearch queue, processing batches every second. |
| 48 |
If a Stomp server is not active it will poll the database every 10s for new jobs in the Elasticsearch queue |
| 49 |
and process them in batches every second. |
| 50 |
|
| 51 |
=cut |
| 52 |
|
| 53 |
use Modern::Perl; |
| 54 |
use JSON qw( decode_json ); |
| 55 |
use Try::Tiny; |
| 56 |
use Pod::Usage; |
| 57 |
use Getopt::Long; |
| 58 |
|
| 59 |
use C4::Context; |
| 60 |
use Koha::Logger; |
| 61 |
use Koha::BackgroundJobs; |
| 62 |
use Koha::SearchEngine; |
| 63 |
use Koha::SearchEngine::Indexer; |
| 64 |
|
| 65 |
|
| 66 |
my ( $help, $batch_size ); |
| 67 |
GetOptions( |
| 68 |
'h|help' => \$help, |
| 69 |
'b|batch_size=s' => \$batch_size |
| 70 |
) || pod2usage(1); |
| 71 |
|
| 72 |
pod2usage(0) if $help; |
| 73 |
|
| 74 |
$batch_size //= 10; |
| 75 |
|
| 76 |
die "Not using Elasticsearch" unless C4::Context->preference('SearchEngine') eq 'Elasticsearch'; |
| 77 |
|
| 78 |
my $logger = Koha::Logger->get({ interface => 'worker' }); |
| 79 |
|
| 80 |
my $conn; |
| 81 |
try { |
| 82 |
$conn = Koha::BackgroundJob->connect; |
| 83 |
} catch { |
| 84 |
warn sprintf "Cannot connect to the message broker, the jobs will be processed anyway (%s)", $_; |
| 85 |
}; |
| 86 |
|
| 87 |
if ( $conn ) { |
| 88 |
# FIXME cf note in Koha::BackgroundJob about $namespace |
| 89 |
my $namespace = C4::Context->config('memcached_namespace'); |
| 90 |
$conn->subscribe( |
| 91 |
{ |
| 92 |
destination => sprintf( "/queue/%s-%s", $namespace, 'elastic_index' ), |
| 93 |
ack => 'client', |
| 94 |
'prefetch-count' => 1, |
| 95 |
} |
| 96 |
); |
| 97 |
} |
| 98 |
my $biblio_indexer = Koha::SearchEngine::Indexer->new({ index => $Koha::SearchEngine::BIBLIOS_INDEX }); |
| 99 |
my $auth_indexer = Koha::SearchEngine::Indexer->new({ index => $Koha::SearchEngine::AUTHORITIES_INDEX }); |
| 100 |
my @jobs = (); |
| 101 |
|
| 102 |
while (1) { |
| 103 |
|
| 104 |
if ( $conn ) { |
| 105 |
my $frame = $conn->receive_frame; |
| 106 |
if ( !defined $frame ) { |
| 107 |
# maybe log connection problems |
| 108 |
next; # will reconnect automatically |
| 109 |
} |
| 110 |
|
| 111 |
my $args = try { |
| 112 |
my $body = $frame->body; |
| 113 |
decode_json($body); # TODO Should this be from_json? Check utf8 flag. |
| 114 |
} catch { |
| 115 |
$logger->warn(sprintf "Frame not processed - %s", $_); |
| 116 |
return; |
| 117 |
} finally { |
| 118 |
$conn->ack( { frame => $frame } ); |
| 119 |
}; |
| 120 |
|
| 121 |
next unless $args; |
| 122 |
|
| 123 |
# FIXME This means we need to have create the DB entry before |
| 124 |
# It could work in a first step, but then we will want to handle job that will be created from the message received |
| 125 |
my $job = Koha::BackgroundJobs->find($args->{job_id}); |
| 126 |
|
| 127 |
unless ( $job ) { |
| 128 |
$logger->warn(sprintf "No job found for id=%s", $args->{job_id}); |
| 129 |
next; |
| 130 |
} |
| 131 |
|
| 132 |
push @jobs, $job; |
| 133 |
if ( @jobs >= $batch_size || !$conn->can_read( { timeout => '0.1' } ) ) { |
| 134 |
commit(@jobs); |
| 135 |
@jobs = (); |
| 136 |
} |
| 137 |
|
| 138 |
} else { |
| 139 |
@jobs = Koha::BackgroundJobs->search( |
| 140 |
{ status => 'new', queue => 'elastic_index' } )->as_list; |
| 141 |
commit(@jobs); |
| 142 |
@jobs = (); |
| 143 |
sleep 10; |
| 144 |
} |
| 145 |
|
| 146 |
} |
| 147 |
$conn->disconnect; |
| 148 |
|
| 149 |
sub commit { |
| 150 |
my (@jobs) = @_; |
| 151 |
|
| 152 |
my @bib_records; |
| 153 |
my @auth_records; |
| 154 |
for my $job (@jobs) { |
| 155 |
my $args = try { |
| 156 |
$job->json->decode( $job->data ); |
| 157 |
} catch { |
| 158 |
$logger->warn( sprintf "Cannot decode data for job id=%s", $job->id ); |
| 159 |
$job->status('failed')->store; |
| 160 |
return; |
| 161 |
}; |
| 162 |
next unless $args; |
| 163 |
if ( $args->{record_server} eq 'biblioserver' ) { |
| 164 |
push @bib_records, @{ $args->{record_ids} }; |
| 165 |
} else { |
| 166 |
push @auth_records, @{ $args->{record_ids} }; |
| 167 |
} |
| 168 |
} |
| 169 |
|
| 170 |
if (@auth_records) { |
| 171 |
try { |
| 172 |
$auth_indexer->update_index( \@auth_records ); |
| 173 |
} catch { |
| 174 |
$logger->warn( sprintf "Update of elastic index failed with: %s", $_ ); |
| 175 |
}; |
| 176 |
} |
| 177 |
if (@bib_records) { |
| 178 |
try { |
| 179 |
$biblio_indexer->update_index( \@bib_records ); |
| 180 |
} catch { |
| 181 |
$logger->warn( sprintf "Update of elastic index failed with: %s", $_ ); |
| 182 |
}; |
| 183 |
} |
| 184 |
|
| 185 |
Koha::BackgroundJobs->search( { id => [ map { $_->id } @jobs ] } )->update( { status => 'finished', progress => 1 }, { no_triggers => 1 } ); |
| 186 |
} |