Migration Plugin

Attempting a migration with ~51K rpms synced into my pulp2 seems to cause the migration proccess to use more memory than expected. after initially getting some OOMs, i shut down some things and investigated and saw it using quite a bit of memory:

pulp     12860 78.8 46.7 6448656 5778552 ?     Rl   20:56   7:20 /usr/bin/python3 /usr/bin/rq worker -w pulpcore.tasking.worker.PulpWorker --pid=/var/run/pulpcore-worker-2/reserved-resource-worker-2.pid -c pulpcore.rqconfig --disable-job-desc-loggin

I'm not sure exactly which part of the migration is happening, but i suspect its when importing rpms, because after the OOM, i saw:

pulpcore=# select count(*)  from pulp_2to3_migration_pulp2content where  pulp2_content_type_id = 'rpm' and pulp3_content_id is NULL;
 count 
-------
  2000
(1 row)

pulpcore=# select count(*)  from pulp_2to3_migration_pulp2content where  pulp2_content_type_id = 'rpm' and pulp3_content_id is not NULL;
 count 
-------
 48340
(1 row)