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* In the scheduler, don't check if we've already done a build (except

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against the set of current builds for the job).  This ensures that
  the builds with the highest ID are what we want in the channel, even
  in case of reverts.
This commit is contained in:
Eelco Dolstra 2009-10-07 13:18:12 +00:00
parent 05c7989c3e
commit 076ef05578
2 changed files with 18 additions and 28 deletions
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2
doc/dev-notes.txt
View file

@ -89,6 +89,8 @@
alter table jobs add column disabled integer not null default 0;
alter table builds add column maintainers text;
alter table builds add column isCurrent integer default 0;
* Job selection:

44
src/script/hydra_scheduler.pl
View file

@ -273,35 +273,24 @@ sub checkJob {
$jobInDB->update({firstevaltime => time})
unless defined $jobInDB->firstevaltime;
# Have we already done this build (in this job)? Don't do it
# again unless it has been garbage-collected. The latest
# builds for each platforms are GC roots, so they shouldn't be
# GCed. However, if a job has reverted to a previous state,
# it's possible that a GCed build becomes current again. In
# that case we have to rebuild it to ensure that it appears in
# channels etc.
my @previousBuilds = $jobInDB->builds->search({outPath => $outPath}, {order_by => "id"});
# Don't add a build that has already been scheduled for this
# job, or has been built but is still a "current" build for
# this job. Note that this means that if the sources of a job
# are changed from A to B and then reverted to A, three builds
# will be performed (though the last one will probably use the
# cached result from the first). This ensures that the builds
# with the highest ID will always be the ones that we want in
# the channels.
# !!! Checking $drvPath doesn't take meta-attributes into
# account. For instance, do we want a new build to be
# scheduled if the meta.maintainers field is changed?
my @previousBuilds = $jobInDB->builds->search({drvPath => $drvPath, isCurrent => 1});
if (scalar(@previousBuilds) > 0) {
foreach my $build (@previousBuilds) {
if (!$build->finished) {
print "already scheduled as build ", $build->id, "\n";
$currentBuilds->{$build->id} = 1;
return;
}
}
if (isValidPath($outPath)) {
print "already done as build ", $previousBuilds[0]->id, "\n";
# Mark the previous build as "current" so that it will
# appear in the "latest" channel for this
# project/jobset/job.
$previousBuilds[0]->update({iscurrent => 1});
$currentBuilds->{$previousBuilds[0]->id} = 1;
return;
}
print "already done as build ", $previousBuilds[0]->id,
"; rebuilding because it was garbage-collected\n";
print "already scheduled/built\n";
$currentBuilds->{$_->id} = 1 foreach @previousBuilds;
return;
}
# Nope, so add it.
my $build = $jobInDB->builds->create(
{ finished => 0
@ -460,7 +449,6 @@ sub checkJobset {
# Clear the "current" flag on all builds that are no longer
# current.
foreach my $build ($jobset->builds->search({iscurrent => 1})) {
print "current is ", $build->id, "\n";
$build->update({iscurrent => 0}) unless $currentBuilds{$build->id};
}