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hydra-update-gc-roots: Keep more evals

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We now keep *all* unfinished evaluations of a jobset, in addition to
the <keepnr> most recent finished evaluations.

The main motivation is to ensure that mirror-{nixos,nixpkgs} work
properly: if building an evaluation takes too long, some of its builds
may already have been garbage-collected by the time the others finish.
This commit is contained in:
Eelco Dolstra 2013-09-18 11:10:10 +00:00
parent 3b70a807b5
commit 2845d46d21
1 changed files with 22 additions and 14 deletions
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36
src/script/hydra-update-gc-roots
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@ -56,6 +56,11 @@ my @roots = readdir DIR;
closedir DIR;
# For scheduled builds, we register the derivation as a GC root.
print STDERR "*** looking for scheduled builds\n";
keepBuild $_ foreach $db->resultset('Builds')->search({ finished => 0 }, { columns => [ @columns ] });
# Keep every build in every release of every project.
print STDERR "*** looking for release members\n";
keepBuild $_ foreach $db->resultset('Builds')->search_literal(
@ -84,19 +89,27 @@ foreach my $project ($db->resultset('Projects')->search({}, { order_by => ["name
next;
}
if ($keepnr <= 0 ) {
print STDERR "*** jobset ", $project->name, ":", $jobset->name, " set to keep 0 builds\n";
next;
}
print STDERR "*** looking for all builds in the $keepnr most recent evaluations of jobset ",
print STDERR "*** looking for all builds in the unfinished and $keepnr most recent finished evaluations of jobset ",
$project->name, ":", $jobset->name, "\n";
my @evals;
# Get the unfinished evals.
push @evals, $_->get_column("eval") foreach $jobset->builds->search(
{ finished => 0 },
{ join => "jobsetevalmembers", select => "jobsetevalmembers.eval", as => "eval", distinct => 1 });
# Get the N most recent finished evals.
if ($keepnr) {
push @evals, $_->get_column("id") foreach $jobset->jobsetevals->search(
{ hasNewBuilds => 1 },
{ where => \ "not exists (select 1 from builds b join jobsetevalmembers m on b.id = m.build where m.eval = me.id and b.finished = 0)"
, order_by => "id desc", rows => $keepnr });
}
keepBuild $_ foreach $jobset->builds->search(
{ finished => 1, buildStatus => { -in => [0, 6] }
, id => { -in =>
\ [ "select build from JobsetEvalMembers where eval in (select id from JobsetEvals where project = ? and jobset = ? and hasNewBuilds = 1 order by id desc limit ?)",
[ '', $project->name ], [ '', $jobset->name ], [ '', $keepnr ] ] }
, id => { -in => $db->resultset('JobsetEvalMembers')->search({ eval => { -in => [@evals] } }, { select => "build" })->as_query }
},
{ order_by => ["job", "id"], columns => [ @columns ] });
}
@ -119,11 +132,6 @@ foreach my $project ($db->resultset('Projects')->search({}, { order_by => ["name
}
# For scheduled builds, we register the derivation as a GC root.
print STDERR "*** looking for scheduled builds\n";
keepBuild $_ foreach $db->resultset('Builds')->search({ finished => 0 }, { columns => [ @columns ] });
# Remove existing roots that are no longer wanted.
print STDERR "*** removing unneeded GC roots\n";