Add package and source package batching for publish

CHANGES/1147.feature

@@ -0,0 +1 @@
+Improved performance when creating publications, by creating PublishedArtifacts in bulk, greatly reducing the number of database calls.

pulp_deb/app/serializers/content_serializers.py

@@ -482,22 +482,15 @@ def to822(self, component=""):
         try:
             artifact = self.instance._artifacts.get()
             artifact.touch()  # Orphan cleanup protection until we are done!
-            if artifact.md5:
-                ret["MD5sum"] = artifact.md5
-            if artifact.sha1:
-                ret["SHA1"] = artifact.sha1
-            ret["SHA256"] = artifact.sha256
-            ret["Size"] = str(artifact.size)
         except Artifact.DoesNotExist:
             artifact = RemoteArtifact.objects.filter(sha256=self.instance.sha256).first()
-            if artifact.md5:
-                ret["MD5sum"] = artifact.md5
-            if artifact.sha1:
-                ret["SHA1"] = artifact.sha1
-            ret["SHA256"] = artifact.sha256
-            ret["Size"] = str(artifact.size)
-
-        ret["Filename"] = self.instance.filename(component)
+
+        if artifact:
+            ret.update({"MD5sum": artifact.md5} if artifact.md5 else {})
+            ret.update({"SHA1": artifact.sha1} if artifact.sha1 else {})
+            ret.update({"SHA256": artifact.sha256})
+            ret.update({"Size": str(artifact.size)})
+        ret.update({"Filename": self.instance.filename(component)})
 
         return ret
 

pulp_deb/app/tasks/publishing.py

@@ -11,6 +11,7 @@
 
 from django.conf import settings
 from django.core.files import File
+from django.db import transaction
 from django.db.utils import IntegrityError
 from django.forms.models import model_to_dict
 
@@ -147,14 +148,12 @@ def publish(
                 packages = Package.objects.filter(
                     pk__in=repo_version.content.order_by("-pulp_created")
                 )
-                for package in packages:
-                    release_helper.components[component].add_package(package)
+                release_helper.components[component].add_packages(packages)
 
                 source_packages = SourcePackage.objects.filter(
                     pk__in=repo_version.content.order_by("-pulp_created"),
                 )
-                for source_package in source_packages:
-                    release_helper.components[component].add_source_package(source_package)
+                release_helper.components[component].add_source_packages(source_packages)
 
                 release_helper.finish()
 
@@ -242,21 +241,28 @@ def publish(
                         pk__in=repo_version.content.order_by("-pulp_created"),
                         release_component__in=release_components_filtered,
                     ).select_related("release_component", "package")
-                    for prc in package_release_components:
-                        release_helper.components[prc.release_component.component].add_package(
-                            prc.package
-                        )
 
                     source_package_release_components = (
                         SourcePackageReleaseComponent.objects.filter(
                             pk__in=repo_version.content.order_by("-pulp_created"),
                             release_component__in=release_components_filtered,
                         ).select_related("release_component", "source_package")
                     )
-                    for drc in source_package_release_components:
-                        release_helper.components[
-                            drc.release_component.component
-                        ].add_source_package(drc.source_package)
+
+                    for component in components:
+                        packages = [
+                            prc.package
+                            for prc in package_release_components
+                            if prc.release_component.component == component
+                        ]
+                        release_helper.components[component].add_packages(packages)
+
+                        source_packages = [
+                            drc.source_package
+                            for drc in source_package_release_components
+                            if drc.release_component.component == component
+                        ]
+                        release_helper.components[component].add_source_packages(source_packages)
 
                     release_helper.save_unsigned_metadata()
                     release_helpers.append(release_helper)
@@ -307,47 +313,73 @@ def __init__(self, parent, component):
             source_index_path,
         )
 
-    def add_package(self, package):
-        with suppress(IntegrityError):
-            published_artifact = PublishedArtifact(
-                relative_path=package.filename(self.component),
-                publication=self.parent.publication,
-                content_artifact=package.contentartifact_set.get(),
-            )
-            published_artifact.save()
-        package_serializer = Package822Serializer(package, context={"request": None})
-
-        try:
-            package_serializer.to822(self.component).dump(
-                self.package_index_files[package.architecture][0]
-            )
-        except KeyError:
-            log.warn(
-                f"Published package '{package.relative_path}' with architecture "
-                f"'{package.architecture}' was not added to component '{self.component}' in "
-                f"distribution '{self.parent.distribution}' because it lacks this architecture!"
-            )
-        else:
-            self.package_index_files[package.architecture][0].write(b"\n")
+    def add_packages(self, packages):
+        published_artifacts = []
+        package_data = []
 
-    # Publish DSC file and setup to create Sources Indices file
-    def add_source_package(self, source_package):
-        artifact_set = source_package.contentartifact_set.all()
-        for content_artifact in artifact_set:
+        for package in packages:
             with suppress(IntegrityError):
+                content_artifact = package.contentartifact_set.get()
+                relative_path = package.filename(self.component)
+
                 published_artifact = PublishedArtifact(
-                    relative_path=source_package.derived_path(
-                        os.path.basename(content_artifact.relative_path), self.component
-                    ),
+                    relative_path=relative_path,
                     publication=self.parent.publication,
                     content_artifact=content_artifact,
                 )
-                published_artifact.save()
-        dsc_file_822_serializer = DscFile822Serializer(source_package, context={"request": None})
-        dsc_file_822_serializer.to822(self.component, paragraph=True).dump(
-            self.source_index_file_info[0]
-        )
-        self.source_index_file_info[0].write(b"\n")
+                published_artifacts.append(published_artifact)
+                package_data.append((package, package.architecture))
+
+        with transaction.atomic():
+            if published_artifacts:
+                PublishedArtifact.objects.bulk_create(published_artifacts, ignore_conflicts=True)
+
+        for package, architecture in package_data:
+            package_serializer = Package822Serializer(package, context={"request": None})
+            try:
+                package_serializer.to822(self.component).dump(
+                    self.package_index_files[architecture][0]
+                )
+            except KeyError:
+                log.warn(
+                    f"Published package '{package.relative_path}' with architecture "
+                    f"'{architecture}' was not added to component '{self.component}' in "
+                    f"distribution '{self.parent.distribution}' because it lacks this architecture!"
+                )
+            else:
+                self.package_index_files[architecture][0].write(b"\n")
+
+    # Publish DSC file and setup to create Sources Indices file
+    def add_source_packages(self, source_packages):
+        published_artifacts = []
+        source_package_data = []
+
+        for source_package in source_packages:
+            with suppress(IntegrityError):
+                artifact_set = source_package.contentartifact_set.all()
+                for content_artifact in artifact_set:
+                    published_artifact = PublishedArtifact(
+                        relative_path=source_package.derived_path(
+                            os.path.basename(content_artifact.relative_path), self.component
+                        ),
+                        publication=self.parent.publication,
+                        content_artifact=content_artifact,
+                    )
+                    published_artifacts.append(published_artifact)
+                source_package_data.append(source_package)
+
+        with transaction.atomic():
+            if published_artifacts:
+                PublishedArtifact.objects.bulk_create(published_artifacts, ignore_conflicts=True)
+
+        for source_package in source_package_data:
+            dsc_file_822_serializer = DscFile822Serializer(
+                source_package, context={"request": None}
+            )
+            dsc_file_822_serializer.to822(self.component, paragraph=True).dump(
+                self.source_index_file_info[0]
+            )
+            self.source_index_file_info[0].write(b"\n")
 
     def finish(self):
         # Publish Packages files