You're probably waiting on a lock from another process. Check pg_locks.
On 7 May 2013 11:38, Johann Spies <johann.spies@xxxxxxxxx> wrote:
I am running python scripts to read tag-formated files and put the data into tables.Sometimes a script (I am running several of them in parallel on a server) just hangs. That happened now again and when I checked I saw this:
SELECT pg_stat_get_backend_pid(s.backendid) AS procpid, pg_stat_get_backend_activity(s.backendid) AS current_query FROM (SELECT pg_stat_get_backend_idset() AS backendid) AS s;
procpid | current_query
---------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
31697 | SELECT rkw_art_link.id, rkw_art_link.rart_id, rkw_art_link.kw_id FROM rkw_art_link WHERE ((rkw_art_link.kw_id = 'a9285811-8b14-421b-b7ee-2c0a7dc9c52c') AND (rkw_art_link.rart_id = '000182809000214')) ORDER BY rkw_art_link.id LIMIT 1 OFFSET 0;
32234 | INSERT INTO rkeywords(de,uuid) VALUES ('ANGIOTENSIN RECEPTOR BLOCKER','4b1c8ae2-d837-4d25-a32f-4891db267b9b');
30791 | INSERT INTO rkeywords(de,uuid) VALUES ('SYNCOPE','45044b9e-3cab-4f7b-83b9-f32cbed3cb24');
31799 | <IDLE> in transaction
16893 | <IDLE>
31624 | INSERT INTO rkeywords(de,uuid) VALUES ('DIASTOLIC FUNCTION','0c3633b4-05d1-4871-bbc1-b5e4c797e0db');
31884 | INSERT INTO rkeywords(de,uuid) VALUES ('MAPK','51b7d331-5652-4d05-9386-bc4e714b398d');
31715 | <IDLE> in transaction
31749 | <IDLE>
321 | SELECT pg_stat_get_backend_pid(s.backendid) AS procpid, pg_stat_get_backend_activity(s.backendid) AS current_query FROM (SELECT pg_stat_get_backend_idset() AS backendid) AS s;
(10 rows)Number 31884 is the problem one. It just sits there everytime I run this query and it never seems to get completed.How do I find out what is the problem? And how do I 'push' it to carry on?
Regards
Johann--
Because experiencing your loyal love is better than life itself,
my lips will praise you. (Psalm 63:3)
--
If you can't see the forest for the trees,
Cut the trees and you'll see there is no forest.
