GET /get_ranklist returns scores of 0.00 for all documents

[dianalam]

I am trying to return a list of the documents and their classifier scores per the HTTP API documentation. I am able to successfully get a list of document IDs and scores, but all the scores are zero.

>>> curl http://localhost:9001/CAL/get_ranklist\?session_id\=ef3ccebf-de2d-4c8b-9f1c-a89061cba2c0 | head -20

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 16217    0 16217    0     0  30455      0 --:--:-- --:--:-- --:--:-- 30425

082d6c85-77a2-4006-b3e1-d2db1770c94a 0.000000
e68bb8f3-f2ba-4cf3-8692-3e4c7cb8a49a 0.000000
eaf2ad85-77a3-49e6-b49d-d1c8383a942f 0.000000
7ed61a2a-6ace-440f-8915-f196ce04e143 0.000000
471eaccf-811b-4cda-b96f-2b3e1a5c5882 0.000000
ba3dbb95-f279-41bd-9fec-5a693bc33888 0.000000
e896fb04-99c1-4d50-b6e9-c2dccb96e357 0.000000
f9b011b6-9455-48d9-992f-7ad35f8b499d 0.000000
f495ff23-35f6-45b0-b2aa-47c23ca996e8 0.000000
5ebf8fcf-e75c-4e99-bd32-e376e4488ab0 0.000000
b58d2e87-c447-466f-98e4-8ab6c2f75e46 0.000000
a8c5a77f-fb2b-4404-90d5-0150d8b8df0d 0.000000
397cbc5e-c305-4f1d-8232-29414ffe6cfc 0.000000
1c4ef4ba-9aa9-45f1-afeb-9d3d7fc8d326 0.000000
ae221c61-b628-47b8-a328-4083490af6ce 0.000000
edbe93db-76bd-4bf4-8b05-d43ce61b9361 0.000000
4a76e35a-18fe-4d69-afd2-210d4509b89e 0.000000
675af8b9-07b0-4c11-911d-a9827c3c5473 0.000000
424aea81-54f6-4037-b806-0dee04a3e33a 0.000000
e31b899a-9356-40bf-818b-e0f6e3480eb5 0.000000

Am I hitting this endpoint incorrectly?