Bug 8970 - fix MARC import under plack

There were database handles being shared between a parent and a child
process, which is a big no-no, and was leading to crazy crashes. Fine
under CGI, but not in a persistent environment. This causes the child to
make a new database handle to use. Also some small cleanups.

To test:
* In a plack environment,
* Tools -> stage MARC records for import
* Use a reasonable size file (but not too big as it all goes into RAM -
  I made one about 40MB.)
* Make sure that it works, and that the progress bars progress.

Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>

Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Tested with a 55M file, I reproduced the error and I confirm this patch
fixes it.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>
This commit is contained in:
Robin Sheat 2014-04-29 18:17:59 +12:00 committed by Galen Charlton
parent 695c7f7bef
commit 750a9ec97c
1 changed files with 24 additions and 29 deletions

View File

@ -44,8 +44,6 @@ use C4::BackgroundJob;
use C4::MarcModificationTemplates;
my $input = new CGI;
my $dbh = C4::Context->dbh;
$dbh->{AutoCommit} = 0;
my $fileID=$input->param('uploadedfileid');
my $runinbackground = $input->param('runinbackground');
@ -91,8 +89,7 @@ if ($completedJobID) {
my $filename = $uploaded_file->name();
my $job = undef;
my $staging_callback = sub { };
my $matching_callback = sub { };
my $dbh;
if ($runinbackground) {
my $job_size = () = $marcrecord =~ /\035/g;
# if we're matching, job size is doubled
@ -104,12 +101,6 @@ if ($completedJobID) {
if (my $pid = fork) {
# parent
# return job ID as JSON
# prevent parent exiting from
# destroying the kid's database handle
# FIXME: according to DBI doc, this may not work for Oracle
$dbh->{InactiveDestroy} = 1;
my $reply = CGI->new("");
print $reply->header(-type => 'text/html');
print '{"jobID":"' . $jobID . '"}';
@ -122,21 +113,28 @@ if ($completedJobID) {
# close STDERR; # there is no good reason to close STDERR
} else {
# fork failed, so exit immediately
warn "fork failed while attempting to run $ENV{'SCRIPT_NAME'} as a background job";
warn "fork failed while attempting to run $ENV{'SCRIPT_NAME'} as a background job: $!";
exit 0;
}
# if we get here, we're a child that has detached
# itself from Apache
$staging_callback = staging_progress_callback($job, $dbh);
$matching_callback = matching_progress_callback($job, $dbh);
}
# New handle, as we're a child.
$dbh = C4::Context->dbh({new => 1});
$dbh->{AutoCommit} = 0;
# FIXME branch code
my ($batch_id, $num_valid, $num_items, @import_errors) = BatchStageMarcRecords($record_type, $encoding, $marcrecord, $filename, $marc_modification_template, $comments, '', $parse_items, 0, 50, staging_progress_callback($job, $dbh));
$dbh->commit();
my ( $batch_id, $num_valid, $num_items, @import_errors ) =
BatchStageMarcRecords(
$record_type, $encoding,
$marcrecord, $filename,
$marc_modification_template, $comments,
'', $parse_items,
0, 50,
staging_progress_callback( $job, $dbh )
);
my $num_with_matches = 0;
my $checked_matches = 0;
@ -147,8 +145,9 @@ if ($completedJobID) {
if (defined $matcher) {
$checked_matches = 1;
$matcher_code = $matcher->code();
$num_with_matches = BatchFindDuplicates($batch_id, $matcher,
10, 50, matching_progress_callback($job, $dbh));
$num_with_matches =
BatchFindDuplicates( $batch_id, $matcher, 10, 50,
matching_progress_callback( $job, $dbh ) );
SetImportBatchMatcher($batch_id, $matcher_id);
SetImportBatchOverlayAction($batch_id, $overlay_action);
SetImportBatchNoMatchAction($batch_id, $nomatch_action);
@ -160,14 +159,14 @@ if ($completedJobID) {
}
my $results = {
staged => $num_valid,
matched => $num_with_matches,
num_items => $num_items,
import_errors => scalar(@import_errors),
total => $num_valid + scalar(@import_errors),
staged => $num_valid,
matched => $num_with_matches,
num_items => $num_items,
import_errors => scalar(@import_errors),
total => $num_valid + scalar(@import_errors),
checked_matches => $checked_matches,
matcher_failed => $matcher_failed,
matcher_code => $matcher_code,
matcher_failed => $matcher_failed,
matcher_code => $matcher_code,
import_batch_id => $batch_id
};
if ($runinbackground) {
@ -183,8 +182,6 @@ if ($completedJobID) {
matcher_code => $matcher_code,
import_batch_id => $batch_id
);
}
} else {
@ -210,7 +207,6 @@ sub staging_progress_callback {
return sub {
my $progress = shift;
$job->progress($progress);
$dbh->commit();
}
}
@ -221,6 +217,5 @@ sub matching_progress_callback {
return sub {
my $progress = shift;
$job->progress($start_progress + $progress);
$dbh->commit();
}
}