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Avoid memory exhaustion during data migration #1630

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merged 2 commits into from
Oct 29, 2024
Merged

Avoid memory exhaustion during data migration #1630

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868810d
Optimize data migration
keshav-space Oct 25, 2024
8f1f4a9
Merge branch 'main' into fix-migration
keshav-space Oct 28, 2024
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36 changes: 31 additions & 5 deletions vulnerabilities/migrations/0071_auto_20241007_1044.py
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Original file line number Diff line number Diff line change
@@ -1,14 +1,22 @@
from django.db import migrations, models
import django.db.models.deletion
from django.core.validators import MaxValueValidator, MinValueValidator
from vulnerabilities.improver import MAX_CONFIDENCE
from aboutcode.pipeline import LoopProgress

def split_packagerelatedvulnerability(apps, schema_editor):
PackageRelatedVulnerability = apps.get_model('vulnerabilities', 'PackageRelatedVulnerability')
FixingPackageRelatedVulnerability = apps.get_model('vulnerabilities', 'FixingPackageRelatedVulnerability')
AffectedByPackageRelatedVulnerability = apps.get_model('vulnerabilities', 'AffectedByPackageRelatedVulnerability')

for prv in PackageRelatedVulnerability.objects.all():
obsolete_package_relation_query = PackageRelatedVulnerability.objects.all()
obsolete_package_relation_query_count = obsolete_package_relation_query.count()
print(f"\nMigrating {obsolete_package_relation_query_count:,d} old package vulnerability relationship.")

progress = LoopProgress(
total_iterations=obsolete_package_relation_query_count,
progress_step=1,
logger=print,
)
for prv in progress.iter(obsolete_package_relation_query.iterator(chunk_size=10000)):
if prv.fix:
FixingPackageRelatedVulnerability.objects.create(
package=prv.package,
Expand All @@ -29,7 +37,16 @@ def reverse_migration(apps, schema_editor):
AffectedByPackageRelatedVulnerability = apps.get_model('vulnerabilities', 'AffectedByPackageRelatedVulnerability')
PackageRelatedVulnerability = apps.get_model('vulnerabilities', 'PackageRelatedVulnerability')

for fpv in FixingPackageRelatedVulnerability.objects.all():
fixing_package_relation_query = FixingPackageRelatedVulnerability.objects.all()
fixing_package_relation_query_count = fixing_package_relation_query.count()
print(f"\nMigrating {fixing_package_relation_query_count:,d} FixingPackage to old relationship.")

progress = LoopProgress(
total_iterations=fixing_package_relation_query_count,
progress_step=1,
logger=print,
)
for fpv in progress.iter(fixing_package_relation_query.iterator(chunk_size=10000)):
PackageRelatedVulnerability.objects.create(
package=fpv.package,
vulnerability=fpv.vulnerability,
Expand All @@ -38,7 +55,16 @@ def reverse_migration(apps, schema_editor):
fix=True,
)

for apv in AffectedByPackageRelatedVulnerability.objects.all():
affected_package_relation_query = AffectedByPackageRelatedVulnerability.objects.all()
affected_package_relation_query_count = affected_package_relation_query.count()
print(f"\nMigrating {affected_package_relation_query_count:,d} AffectedPackage to old relationship.")

progress = LoopProgress(
total_iterations=affected_package_relation_query_count,
progress_step=1,
logger=print,
)
for apv in progress.iter(affected_package_relation_query.iterator(chunk_size=10000)):
PackageRelatedVulnerability.objects.create(
package=apv.package,
vulnerability=apv.vulnerability,
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